RIGID BODY SUPPORT SYSTEM DESIGNING METHOD, OPTIMAL ARRANGEMENT DESIGNING DEVICE OF ENGINE MOUNT USING IT, AND RECORDING MEDIUM WITH THE PROGRAM RECORDED THEREON

摘要

PROBLEM TO BE SOLVED: To instantly and easily obtain an optimal solution though none of designers has the knowledge of vibration in particular in the case of designing the engine mount system of a vehicle. SOLUTION: This device which decides an arrangement form, a spring characteristic, an installing position, a posture, etc., concerning each engine mount to be optimal in the case of designing the engine mount system is provided with a genetic algorithm processing means 505. With minimizing of the value of the rigid item of a target direction desired to reduce vibration as a target function, with the value of the rigid body item in a conditional direction desired to cut off linked movement being within the range of a prescribed value in the neighborhood of zero as a restricting condition and with at least one desired parameters among parameters included in a rigid body item arithmetic expression respectively as genes, the means 505 gives generation change to a the group of individuals consisting of a prescribed number of the individuals consisting of the combination of these genes to obtain an individual most suitable for the target function.