Browse Topic: Materials handling

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Cloths, Cleaning, For Aircraft Primary and Secondary Structural SurfacesAMS3819E (Current)12/9/2025
This specification covers woven, nonwoven, and knit absorbent materials supplied either as dry cloths or presaturated cloths for solvent cleaning process applications.
AMS G9 Aerospace Sealing Committee
Performance based packaging standard for lithium batteries as cargo on aircraftAS6413 (Current)11/26/2025
This standard is intended to demonstrate and document the control of the potential hazards from lithium cells or batteries (UN 3090 and 3480) when transported as cargo on aircraft. [still need to identify if we are addressing global (external fire) or local (battery internal failures)] This standard addresses the need to control the hazards which might arise from a failure from an individual cell by containing the hazards within the package. This specific hazards addressed within this standard are: • Uncontrolled fire • Rapid overpressure pulse within compartment
G-27 Lithium Battery Packaging Performance
Steel, Bars, Forgings, and Rings 0.95Cr - 0.20Mo (0.28 - 0.33C) (SAE 4130) AMS6370S (Current)11/25/2025
This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, flash welded rings, and stock for forging or flash welded rings.
AMS E Carbon and Low Alloy Steels Committee
Grease, Aircraft, General Purpose, Low Temperature Range, Lithium ThickenedAMS3052B (Current)9/30/2025
Committee AMS-M is establishing an Industry Managed Qualification Program through the remit of the Performance Review Institute which requires this specification to be revised to reference the qualification process and controlling documentation.
AMS M Aerospace Greases Committee
History and Future of VTOL Air FreightF-0080-2024-13775/7/2024
Transporting cargo has been a goal of helicopter operations since the earliest days of development. The concept of carrying passengers and cargo from and to remote locations without a runway was originally exploited by the US military in times of peace and war. Early helicopter designs were limited in fixed useful load after onboarding crew and fuel. The 1940's saw helicopters transporting small, lightweight packages on an as-needed basis. The decade of the 1960's started seeing heavy lift helicopters transporting specialty loads in construction and logistics supply, again on an as-needed basis. Today, several Part 135 helicopter operators offer as needed VTOL cargo services. Blade Air Mobility has developed a successful public company business model in Part 135 passenger transport and is also expanding in carrying parcels. With the advent of transformative VTOL air vehicle designs, there has been increasing emphasis on examining parcel delivery on a regular basis. As omni-channel ecommerce drives the ever-increasing need for same day delivery post order. Retails and distributors need to compete with big box retailers and warehouse companies such as Walmart and Amazon, respectively. This results in reducing or eliminating over-the-road transport delivery. The future of parcel and cargo distribution is proposed to be with VTOL air vehicles. To understand the future of such distribution, it is imperative to examine the development of helicopter size, performance, and operational uses.
Stanzione, Kaydon, Schrage, Daniel
Pre-print testing CSP-6572SAE-PP-091512/1/2024
Regression pre-print submission
Atash, Ganira
PRE-print testing CSP-6572SAE-PP-0905612/12/2023
regression preprint
Atash, Ganira
Pre-print testing CSP-6572SAE-PP-0904512/8/2023
regression preprint submission
Atash, Ganira
Pre-print testing CSP-6572SAE-PP-0903112/4/2023
regression preprint submission
Atash, Ganira
Print regression testingSAE-PP-0896311/8/2023
regression preprint submission
Atash, Ganira
Preprint regression testingSAE-PP-0896211/8/2023
regression preprint submission
Atash, Ganira
test 06/19/2023auto testauto testauto testauto testauto testauto testauto testauto testauto testauto testauto testauto testSAE-PP-081656/19/2023
test 06/19/2023
Mutagaana, Festo
Optimizing Battery Life in Conventional Helicopters: Selection, Charging, Storage, and MaintenanceF-0078-2022-176465/10/2022
ABSTRACT
Neus, Mike, Powell,  Jerome, Zreet,  Collin
Laser Directed Energy Deposition Additive Manufacturing Process (L-DED)AMS7010A (Current)10/28/2021
This specification establishes process controls for the repeatable production of preforms/parts using the laser directed energy deposition (L-DED-) process for additive manufacturing. Preforms are intended to be used to manufacture aerospace parts, but usage is not limited to such applications. Feedstock may be either wire (for L-DED-Wire) or powder (for L-DED-Powder).
AMS AM Additive Manufacturing Metals
Inspection, Ultrasonic, Wrought Metals, Process forAMSSTD2154E (Current)7/15/2021
The purpose of this standard is to provide uniform methods for the ultrasonic inspection of wrought metals and wrought metal products.
AMS K Non Destructive Methods and Processes Committee
Remover, Acid Activated, For Amine-Cured Epoxy Coating SystemsAMSR81903A (Current)5/6/2021
This specification covers the requirements for removers used on amine-cured epoxy coating systems (see 6.1).
AMS J Aircraft Maintenance Chemicals and Materials Committee
Light, Desk, AircraftAS7768B (Current)4/22/2021
This specification covers the requirements for a light assembly for use on aircraft cabin desks.
A-20C Interior Lighting
Electron Beam Directed Energy Deposition-Wire Additive Manufacturing Process (EB-DED-Wire)AMS7027 (Current)11/18/2020
This specification establishes process controls for the repeatable production of aerospace parts by EB-DED-Wire. It is intended to be used for metal aerospace parts produced by additive manufacturing (AM), but usage is not limited to such applications.
AMS AM Additive Manufacturing Metals
LOGICAL SOFTWARE PART PACKAGING FOR TRANSPORTARINC641-1 (Current)11/16/2020
The purpose of this standard is to provide a method for packaging aircraft software parts for distribution using contemporary media or by electronic distribution. This project intends to standardize and provide guidance for the storage of floppy based software, currently packaged in media set parts. This standard format can be then stored or distributed on a single physical media member (CD-ROM), or by electronic crate. The obsolescence of floppy disks drive an urgent need for this guidance.
Airlines Electronic Engineering Committee
PACKING, PREFORMED, AMS7267, O-RINGAS9385A (Current)10/26/2020
Scope is unavailable.
A-6C2 Seals Committee
INSTALLING AND REMOVAL TOOLS, CONNECTOR ELECTRICAL CONTACT, TYPE II, CLASS 1, COMPOSITION AAS81969/20 (Current)8/17/2020
AE-8C2 Terminating Devices and Tooling Committee
ELECTRONIC DISTRIBUTION OF SOFTWARE BY CRATE (EDS CRATE)ARINC827-1 (Current)8/10/2020
This standard describes the format for electronic distribution of aircraft software parts and other contents between aerospace business partners using a digital container referred to as an EDS crate. This EDS standard is intended to promote consistent, secure distribution of EDS content to any appropriate destination.
Avionics Maintenance Committee
Standard Contaminant for Testing Aerospace CleanersAMS7201 (Current)7/14/2020
This specification establishes requirements for a standard contaminant that can be used to represent typical soils encountered in aerospace cleaning. This standard contaminant consists of materials that are common contaminants found in aircraft maintenance depots and manufacturing facilities.
AMS G9 Aerospace Sealing Committee
BAND INSTALLATION TOOL, HAND, ONE-STEP, FOR AS85049/128 CONNECTOR ACCESSORY CABLE SHIELD TERMINATING BANDSAS81306/1C (Current)4/22/2020
AE-8C2 Terminating Devices and Tooling Committee
Relevance of Exhaust Aftertreatment System Degradation for EU7 Gasoline Engine Applications2020-01-03824/14/2020
Exhaust aftertreatment systems must function sufficiently over the full useful life of a vehicle. In Europe this is currently defined as 160.000 km. With the introduction of Euro 7 it is expected that the required mileage will be extended to 240.000 km. This will then be consistent with the US legislation. In order to quantify the emission impact of exhaust system degradation, an Euro 7 exhaust aftertreatment system is aged by different accelerated approaches: application of the Standard Bench Cycle, the ZDAKW cycle, a novel ash loading method and borderline aging. The results depict the impact of oil ash on the oxygen storage capacity. For tailpipe emissions, the maximum peak temperatures are the dominant aging factor. The cold start performance is effected by both, thermal degradation and ash accumulation. An evaluation of this emission increase requires appropriate benchmarks. For this purpose, an analysis of the emission impacts of ambient temperatures, driving modes and particulate filter regenerations follows. The comparison shows the severe impact of very low ambient conditions. Considering the high statistical relevance of catalyst degradation however, full useful life optimization requires special attention for Euro 7 gasoline engine applications.
Sterlepper, Stefan, Claßen, Johannes, Pischinger, Stefan, Görgen, Michael, Cox, Jim, Nijs, Martin, Scharf, Johannes
Inspection, Ultrasonic, Wrought Metals, Process forAMSSTD2154D (Historical)4/3/2020
The purpose of this standard is to provide uniform methods for the ultrasonic inspection of wrought metals and wrought metal products.
AMS K Non Destructive Methods and Processes Committee
Case Study on the Challenges and Responses of a Large Turnkey Assembly Line for the C919 Wing2020-01-00103/10/2020
Design and production of an assembly system for a major aircraft component is a complex undertaking, which demands a large-scale system view. Electroimpact has completed a turnkey assembly line for producing the wing, flap, and aileron structures for the COMAC C919 aircraft in Xi’an, China. The project scope includes assembly process design, material handling design, equipment design, manufacture, installation, and first article production support. Inputs to the assembly line are individual component parts and small subassemblies. The assembly line output is a structurally completed set of wing box, flaps, and ailerons, for delivery to the Final Assembly Line in Shanghai. There is a trend toward defining an assembly line procurement contract by production capacity, versus a list of components, which implies that an equipment supplier must become an owner of production processes. The most significant challenge faced was the amount of front end engineering work required to develop detailed assembly processes and reconcile them with the customer, who remains the actual process owner. Other challenges include aircraft maturity delays, design changes due to process definition evolution, factory environmental conditions such as dust and varying temperature gradients, and cultural and communication challenges both internal and external. The result achieved by Electroimpact is an assembly line system composed of an integration of assembly tooling, special process equipment, NC machine equipment, inspection equipment, material handling and logistics equipment: Two robotic drilling cells integrated with both stationary and mobile tooling. Integrated wing major assembly cell with manual assembly jigs and large CNC wing drilling machines. Twenty-three other manual work stations. New technology developments implemented include: A new high-curvature nosepiece on the robot end effecter to enable accurate drilling and countersinking on the LE Spar D-Nose section. A new application and delivery system for single-sided temporary fasteners for wing panel drilling. Tooling design to accommodate large temperature variations.
Forbes, Mark
Extended Endurance Unmanned Aerial Vehicle via Structural Electrical Power Storage and Energy Generation Devices2020-01-00413/10/2020
As the application of unmanned aerial vehicles (UAV) have increased in the military, commercial and private sectors, special attention has been focused on improving upon high altitude long endurance (HALE) performance. Therefore, under a multi-year, multi-discipline senior project team comprised of Aerospace Engineering, Electrical Engineering, Computer Engineering, Mechanical engineering, and Chemical Engineering undergraduate teams, investigative and experimental research has begun into the substitution of various aircraft structural components with power storage and power generation devices used also as structure to improve flight endurance and performance capabilities of solar powered UAVs. One viable solution may be found in the reduction of the amount of parasitic weight due to the required power systems on board these types of aircraft. These power systems are usually found in the form of energy storage devices such as lithium polymer batteries and energy generation devices such as solar cells. This path led to the innovation of the ‘Flying Battery’. The ‘Flying Battery’ integrates various free energy generating devices such as structural solar cells, structural energy storage devices, thermo-electric generators, and vibration induced power generators to create a flying structure that will be more efficient overall. By weighting the design factors for the power systems by their structural strengths and stiffnesses, the power-to-weight ratio of the aircraft may be significantly improved in the long run while also enabling a structure that may withstand the various nominal and off-nominal aerodynamic loading conditions experienced during flight. This paper discusses the mission operations, methods of testing and the progress achieved thus far toward achieving potential endurance and efficiency increases in unmanned aerial vehicles. These will be done through laboratory and eventual model flight experiments of novel structural designs for graphene super-capacitors, solar cells, and other power generation devices.
Oetting, Geoffrey Smith
Slippery Surfaces Allow Sticky Pastes and Gels to SlideTBMG-361923/1/2020
Materials known as yield-stress fluids, including gels and pastes, can be found in consumer products such as food, condiments, and cosmetics, and in products in the energy and pharmaceuticals industries. Unlike other fluids such as water and oils, these materials will not start to flow on their own, even when their container is turned upside-down. Starting the flow requires an input of energy, such as squeezing the container.
Self-Cleaning, Non-Stick CoatingTBMG-362003/1/2020
Researchers have developed a self-cleaning surface that can repel all forms of dangerous bacteria. The new plastic surface — a treated form of conventional transparent wrap — can be shrink-wrapped onto door handles, railings, IV stands, and other surfaces that can be magnets for bacteria such as MRSA and C. difficile. The treated material is also ideal for food packaging, where it could stop the accidental transfer of bacteria such as E. coli, salmonella, and listeria from raw chicken, meat, and other foods.
Q&A: Solid Silk - A Biocompatible, Sustainable, Degradable Building BlockTBMG-361753/1/2020
David Kaplan, Stern Family Professor of Engineering at Tufts University’s College of Engineering, and his team have developed a unique and practical method for processing silk into solid form for products such as rods and plates for medical implants.
Leading Women in Engineering & Science: Dr. Annette Teng, CEO; Lisa Wen, Process EngineerTBMG-362633/1/2020
DC Resistivity vs RF Impedance of EMI GasketsAIR1404 (Current)1/30/2020
This AIR discusses the DC resistivity property of EMI gaskets.
AE-4 Electromagnetic Compatibility (EMC) Committee
Wire Fed Laser Directed Energy Deposition Additive Manufacturing Process (L-DED-wire)AMS7010 (Historical)1/14/2020
This specification establishes process controls for the repeatable production of preforms using the wire fed laser directed energy deposition (L-DED-wire) process for additive manufacturing. Preforms are intended to be used to manufacture aerospace parts, but usage is not limited to such applications.
AMS AM Additive Manufacturing Metals
Lift Capacity Calculation Method Knuckle-Boom Log Loaders and Certain Forestry EquipmentJ2417_202001 (Historical)1/10/2020
This SAE Standard provides a uniform method to calculate the lift capacity of knuckle-boom log loaders and certain forestry equipment. It establishes definitions and specifies machine conditions for calculations. This document applies to knuckle-boom log loaders as defined in ISO 6814 and ISO 17591 and certain forestry equipment defined in ISO 6814 that have a rotating upper-structure such as feller bunchers, forwarders, harvesters, and behind the cab or rear-mounted knuckle-boom log loaders not having their own power supply. It does not apply to harvesters that are incapable of lifting a tree or log completely off the ground. This document applies to those machines that are crawler, rubber-tired, and pedestal or stationary mounted.
MTC4, Forestry and Logging Equipment
Toyota unveils rear-drive FCEV Mirai, plug-in RAV419AUTP11_1511/1/2019
As part of an electrified stable primed for the 2019 Los Angeles Auto Show (LAAS), Toyota will display its all-new Mirai fuel-cell electric vehicle (FCEV) and the upcoming plug-in hybrid version of its RAV4 compact SUV. The two 2021 models will further pad the Japanese company's already market-leading six hybrid offerings (12 if the premium Lexus brand is included). On top of previously announced plans for a “major battery electric vehicle (BEV) rollout,” Toyota also announced an extension of its hybrid battery warranties. The second-gen Mirai FCEV - unveiled as a “concept” at a recent media event but appearing in near-production form - will debut as a sleek, rear-wheel-drive (RWD), 4-door, 5-passenger sedan. Toyota says it's targeting a 30% increase in driving range compared to the first-gen Mirai, with the additional range achieved via an improved (and quieter) fuel-cell stack and increased hydrogen storage capacity. The current front-wheel drive (FWD), 4-pasenger Mirai launched in 2015, has an EPA-estimated driving range of 312 miles (502 km) and stores 122.4 L (32 gal) of hydrogen in two tanks.
Seredynski, Paul
Fluid-Filled Frequency-Tunable Mass DamperTBMG-3525310/1/2019
Innovators at Marshall Space Flight Center developed the fluid-filled Frequency-Tunable Mass Damper (FTMD) technology that allows for significant distribution of loads while also providing a simple mechanism that allows for the capability to change its frequency of mitigation with negligible impact on the damper system. For existing fluid-filled pipes, ducts, ballast tanks, etc., the fluid can be leveraged to provide vibration mitigation. This new technology enables structural engineers to set and change the fundamental mitigation attributes of the mass damper system with little to no modification of the fluid container.
The Future of 3D Printing: From Prototyping to ProductionTBMG-3537010/1/2019
Additive manufacturing, better known as 3D printing, has been evolving for the last 30 years. Now it’s set to enter the mainstream, and evolving technology including new printers and 3D printed metals have the potential to transform manufacturing and logistics across multiple sectors.
Local Weakening of Honeycomb Core for Improved Surface Quality and Bonding in Co-Cured Sandwich Panels2019-01-18599/16/2019
Sandwich panels made of Nomex honeycomb core and fiber reinforced face sheets are a major component of aircraft interior parts. A common way to locally increase the strength of such panels, e.g. for load introduction, is the local thickening of the face sheets with additional prepreg layers. Curing of strengthened panels without further processing of the core leads to higher flatness tolerances as well as residual stresses. Machining of the core in the strengthened areas is possible, but expensive due to high machine costs and additional cleaning processes. In this paper a new process for the reduction of the residual stresses in strengthened areas, as well as improved bonding between core and face sheets is presented. The process is based on local reduction of the compressive strength in the surface area of the honeycomb core, which allows for controlled, irreversible deformation at curing pressure. For the reduction of compressive strength, a concept based on a robot guided tool with multiple blades is presented. The process parameters impacting the compressive strength after weakening are derived based on a model based analysis. A testing tool was built, and a series of tests was performed, in order to quantify the impact and to select suitable parameters. It was found that the remaining compressive strength depends mainly on the cutting pattern, the blade distance and the cutting depth. A Further reduction of compressive strength was achieved by bending the remaining structures after the cutting process. In order to validate the process, surface flatness, as well as bonding strength between core and face sheets have been measured. In addition to the flat integration of a large amount of additional prepreg layers it has been found that the bonding strength increases up to 30% due to increased bonding surface of the honeycomb core.
Eschen, Henrik, Schüppstuhl, Thorsten
A Study on the Optimum Reduction of Required Brake Fluid Level for Improvement of the High Speed Continuous Brake Distance2019-01-21219/15/2019
The high speed continuous braking distance assessment is the worst condition for thermal fades. This study was conducted to investigate the relationship between fade characteristic and friction materials & brake fluid amount for improving braking distance. So, we used the dynamometer to measure the friction coefficient, braking distance and required brake fluid amount. Through the measurements, the research was carried out as follows. First of all, we studied the influence of friction coefficient about different shapes (chamfer shape, area of the friction material, number of slots) on the same friction material. Secondly, we knew the effects of braking distance by the shape of the friction material. Through these two studies, the shape of the friction material favorable to the fade characteristics was derived. Finally, we measured the amount of required brake fluid in caliper after 10 consecutive braking cycles through Dynamometer. And then, we measured the amount of compression deformation and uneven wear of the friction material. It was found that the above two factors cause the increase the amount of required brake fluid. Through this study, in order to have strength for the fade characteristic, it is required that continuous management of the friction material and shape of brake pad. This is because the friction coefficient and the high temperature compression deformation of the friction material are determined by its material. Also, it is necessary to robust design the caliper for reducing for uneven wear about the brake pad.
Kim, Junggyu, Kim, Kwang Yun, So, Eue-sub
Automotive Engineering: September 201919AUTP099/1/2019
Engineering the 2020 Chevrolet Corvette The eighth-gen (C8) Corvette is a creative mix of novel and traditional technical solutions - unleashed at a shockingly low base price. Stuck on structural adhesives As the need for lighter materials and enhanced body performance intensifies, structural adhesives flourish as a materials-joining solution. Rethinking ADAS materials New specialized thermoplastics offer greater design freedom to improve sensor performance and packaging, at reduced cost. Inside VW's expanding Silicon Valley lab The pioneering California innovation hub enters its third decade on a new wave of innovation. Editorial There is no substitute for 'Automotive Grade' Standards News SAE embraces micromobility and its macro challenges Supplier Eye The value - and risks - of Technology Testbeds What We're Driving Latest mass-reducing innovations honored by Altair GM underway with plan to build U.S. electric-vehicle charging infrastructure Ford 'cranks' it up with another big V8 for Mustang ZF shifts EV transmission efficiency up a gear 2020 Hyundai Palisade: New chassis, Atkinson V6 Ford returns to OHVs for new commercial-truck V8 Q&A American Battery Solutions Inc.'s Subash Dhar
Aerospace Fluid Power - Waste Reduction Practices for Used Phosphate Ester Aviation Hydraulic FluidAIR5277B (Current)8/22/2019
This SAE Aerospace Information Report (AIR) covers the generation of used phosphate ester aviation hydraulic fluid (AS1241) that is deemed waste because it does not meet in-service limits for use in aircraft. This document also lists the relevant United States Environmental Protection Agency (U.S. EPA) regulations on used hydraulic fluid that are in force at the time of this report's publication. Regulations of other countries as well as those for states and municipalities should be consulted prior to initiating any of the waste disposal recommendations listed here.
A-6C3 Fluids Committee
Fire-Retardant Coating Uses Renewable, Nontoxic MaterialsTBMG-349048/1/2019
Researchers developed a new kind of flame-retardant coating using renewable, nontoxic materials readily found in nature. The coating could provide more effective fire protection for several widely used materials. The coatings offer the opportunity to reduce the flammability of polyurethane foam used in a variety of furniture.
New and Newly Retreaded Tire AppearanceARP6307A (Current)7/2/2019
This document is for establishing and addressing anomalies on appearance of new and newly retreaded tires prior to installation on aircraft. It is intended to use cosmetics as well as functionality to make a determination of acceptability. However, if cosmetic appearance is not a requirement, use the inspection criteria from ARP6225. This ARP does not supersede (E)TSO-C62 minimum requirements, including marking requirements.
A-5C Aircraft Tires Committee
What M&E Can Teach the AV Industry About Data19AVEP07_057/1/2019
Media & entertainment offers important learnings on data retention, management, scalability and security. At first glance, autonomous vehicles would seem to have little in common with the Media and Entertainment (M&E) industry, beyond action-movie car chases and in-vehicle entertainment screens. But AVs and M&E do have a lot in common when it comes to their data. Both generate hundreds of petabytes of data per year. Both need to manage that data for retrieval and value and both need to store that data with security and protection.
Coari, Jason, Pastor, Mark
Engine Exhaust Noise Optimization Using Sobol DoE Sequence and NSGA-II Algorithms2019-01-14836/5/2019
Exhaust muffler is one of the most important component for overall vehicle noise signature. Optimized design of exhaust system plays a vital role in engine performance as well as auditory comfort. Exhaust orifice noise reduction is often contradicted by increased back pressure and packaging space. The process of arriving at exhaust design, which meets packaging space, back pressure and orifice noise requirements, is often manual and time consuming. Therefore, an automated numerical technique is needed for this multi-objective optimization. In current case study, a tractor exhaust system has been subjected to Design of Experiments (DoE) using Sobol sequencing algorithm and optimized using NSGA-II algorithm. Target design space of the exhaust muffler is identified and modeled considering available packaging constrain. Various exhaust design parameters like; length of internal pipes, location of baffles and perforation etc. are defined as input variables. Performance objective of back pressure and sound pressure level has also been defined in simulations workflow. Exhaust orifice noise has been reduced with significant reduction in overall simulations time. The optimal design is achieved satisfying all constrains leading to notable productivity improvement.
Sethi, Ishwinder Pal Singh, Nene, Devendra, Shivajirao Patil, Anand
Development of an Accelerated Test for Tire Flat-Spotting2019-01-15096/5/2019
Tire flat-spotting occurs when tires remain in a loaded condition without rolling for an extended period of time, and can be temporary or permanent depending on the length of storage, vehicle loading and environmental factors. Tire non-uniformity caused from flat-spots often induce shake and shimmy vibration in vehicles due to increased tire-wheel force variation input into the chassis. This results in increased warranty costs for OEMs and tire suppliers and customer dis-satisfaction in third-party quality surveys such as J. D. Power IQS. Flat-spotting is of particular concern for slow-moving vehicle inventory parked for long periods at plants and/or dealership lots. OEMs often stipulate or recommend inventory storage practices for dealers that require physical movement of vehicles at some set duration to reduce the risk of tires developing permanent flat-spots. OEMs also provide component level flat-spotting requirements to tire manufacturers during sourcing and specification timing to secure their internal requirements and targets. The study in this paper initially determined real-world flat-spotting levels on an actual vehicle during the adverse summer months of Arizona. Tire uniformity measured on a high-speed uniformity machine were used as an indicator of flat-spotting performance. Using an environmental chamber and custom designed loading fixtures, appropriate loads and temperatures were applied simultaneously to develop an accelerated test criteria that duplicated real-world flat-spotting behavior. The study outlined in this paper developed a two-day test using equivalent vehicle loading and elevated temperatures that produced the equivalent tire flat-spotting of a 30-day real-world storage during adverse summer conditions. This accelerated test allows a quick evaluation of tire flat-spotting performance that can be expected in adverse real-world conditions. Over the long term, it is estimated that such testing will generate more precise specifications for tire manufacturers, drive better inventory management and storage practices, reduce warranty costs and improve customer satisfaction.
Kavarana, Farokh, Fritz, Scott
3D Printable Sensors Disposed of Without Contaminating the EnvironmentTBMG-345926/1/2019
Simon Fraser University and Swiss researchers are developing an eco-friendly, 3D printable solution for producing wireless Internet-of-Things (IoT) sensors that can be used and disposed of without contaminating the environment.
Model Gives Robots a Better Feel for Object ManipulationTBMG-345766/1/2019
A new learning system improves a robot’s ability to mold materials into target shapes and make predictions about interacting with solid objects and liquids. The system, known as a learning-based particle simulator, could give industrial robots a more refined touch and may have applications in personal robotics.
Rubber Synthetic Low-Temperature Resistant 25 - 35AMS3204N (Current)5/10/2019
This specification covers a synthetic rubber in the form of sheet, strip, tubing, extrusions, and molded shapes.
AMS CE Elastomers Committee
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