"Design and process Optimization of Suspension Components Under RWUP-based Loading Conditions"

Title: Challenges faced during design and manufacturing of POM (Polyoxymethylene) ring in Macpherson strut suspension. Abstract: Designing and manufacturing a POM (Polyoxymethylene) ring for a MacPherson strut suspension system brings a unique set of challenges due to the high-performance and durability demands for Indian road application. POM ring along with bump used in the shock absorber is designed to absorb the strong shock coming from the road inputs when suspension travel reached to the maximum limit there by absorbing the impact energy and preventing it from transferring it to the body. A bump stopper for a suspension of a vehicle is made of poly urethane (PU) and POM ring (Polyoxymethylene). The bump stopper forms of a bellows shape during the absorption of impact energy. Bellow or wrinkle in which concaves and convexes are repeated is formed on the outer surface of the bump stopper. POM ring is placed in the concaves of bump stopper which will define load, deflection & stopping height. In this paper we have demonstrated the two key challenges experienced in successfully completing the POM ring design along with manufacturing process improvements - 1. "A key focus of design optimization is addressing wheel displacement in conjunction with conical motion, tailored to the irregularities of Indian road surfaces." 2. "Establishing an optimized manufacturing process for producing defect-free POM (Polyoxymethylene) rings through precision molding techniques.".