Computer Aided Design Of Macpherson Suspension Side Load Spring

Side load spring is crucial in reducing side load within Macpherson suspension andmaintaining the comfort of vehicle passengers. However as a patented product of Germany,we hold no feasible procedure to design this kind of spring in our country now. Therefore,it’s a purpose of this paper to find a way of completing parametric modeling and optimaldesign for side load helical spring on finite element analysis software ANSYS. By thecombination of visual interface of software VB and powerful ANSYS parameter designlanguage APDL works out the optimal design of side load helical spring. This procedure isalso a key point of this paper, named as the secondary development of ANSYS based onVB. The practical application of this procedure could effectively relieve designers fromcomplex and tedious drudgery experience during the process of development&design ofside load spring. On some levels, it might also concurrently provide convenience forANSYS users.First of all, provide a detailed description of the structure of Macpherson suspensionand the force analysis of this suspension system, a problem remarkably shows that sideload in Macpherson suspension might cause damage to the shock absorber piston rod, atthe same time unfortunately common cylindrical helical spring as elastic component isobviously inadequate in equilibrating side load. In terms of this problem, after thecomparison of different solutions provided by foreign experts, this paper established theresearch object by utilizing side load helical spring to replace common cylindrical helicalspring as elastic component.Secondly, the parameterized optimization design of side load helical spring isestablished by means of APDL based on finite element analysis software ANSYS whichincludes parametric modeling, load operation, solution post-processing and optimal design.Meanwhile considering the complex construction of side load helical spring might causethe process of finite element analysis time-consuming, necessary research on element typeselection is also studied.Finally, the combination of convenient parameter input interface of VB and side load helical spring optimal design APDL procedure could fulfill the purpose of completingfinite elemental analysis of side load helical spring. And optimal design parameters couldbe obtained from solution-processing interface of VB. This procedure is perfectlyapplicable in analyzing different design project with respective structure parameters andloading condition. As a result, enhancing analysis efficiency and diminishing analysis cost.