Kinematic design of double-wishbone suspension systems using a multiobjective optimisation approach

• Published in: Vehicle system dynamics Vol. 48; no. 7; pp. 793 - 813
• Main Authors: Sancibrian, Ramon, Garcia, Pablo, Viadero, Fernando, Fernandez, Alfonso, De-Juan, Ana
• Format: Journal Article
• Language: English
• Published: Colchester Taylor & Francis 01.07.2010
• Subjects: Applied sciences; computational kinematics; Design engineering; double-wishbone; Drives; Exact sciences and technology; Jacobian matrix; kinematic synthesis; Kinematics; Linkage mechanisms, cams; Machine components; Materials handling; Mechanical engineering. Machine design; Optimization; road vehicles; Springs and dampers; suspension system design; Suspension systems; Synthesis; Vehicles; Method of characteristics; Motor car; Road vehicle; suspension system design; kinematic synthesis; Multiobjective programming; computational kinematics; Ball joint; Jacobi matrix; Vehicle dynamics; Optimization; Dimensioning; Vehicle suspension; Mechanism synthesis; road vehicles; Kinematics; double-wishbone; Robustness; Revolute joint
• ISSN: 0042-3114; 1744-5159
• DOI: 10.1080/00423110903156574

This paper is focused on the kinematic design of double-wishbone suspension systems in vehicles, which is tackled using a multiobjective dimensional synthesis technique. The synthesis goal is to optimise an RSSR-SS linkage, subject to some constraints involved in the dynamic behaviour of vehicles. The synthesis method is based on gradient determination using exact differentiation to obtain the elements in the Jacobian matrix. These characteristics make the method adapt well to the optimum design of vehicle suspension systems. The method is capable of handling equality and inequality constraints, thus, the usual ranges of values may be imposed on the functional parameters. The formulation presented is easy to implement and the solutions obtained demonstrate the accuracy and robustness of the method.