Geometric robustness and dynamic response management by structural topometry optimisation to reduce the risk for squeak and rattle

Abstract Historically, squeak and rattle (S&R) sounds have been among the top quality problems a major contributor to warranty costs in passenger cars. Geometric variation is main causes of S&R. Though, geometric analysis robust design techniques passively involved open-loop activities predesign-freeze phases car development. Despite successful application topometry optimisation enhance attributes such as weight, durability, noise vibration crashworthiness cars, implementation closed-loop structural context reduce risk for S&R has limited. In this respect, obstacles demanding computational resources absence quantified evaluation methods. work, approach proposed involve an attribute balancing problem together with dynamic response system. The method was used identify potential areas door component that needed reinforcement. objective robustness minimise by improving system static geometrical uncertainties excitation.