Hydro-pneumatic or air suspension might have superior ride quality, yet their severe damage could be too expensive for small-amateur rally teams, difficult, and time-consuming to be solved in the rally service park which has time limitation. Small teams also often struggle to recognize the true performance of their suspension system since full vehicle testing and validation is often performed late, with modest apparatus or direct test by the driver, leading to the riskier and more costly rework when design modification is needed. In this paper, a technique of multibody simulation and statistical comparison for the vehicle suspension systems road holding and ride comfort performance assessment is described, and comparative result towards the linear and progressive rate double wishbone suspension, as the practical case study example of alternative-inexpensive choice in rally car application, by using this technique, is presented. Initially, after the CAD model is obtained by laser-scanning of the real components, both the linear and progressive rate suspension, as well as the test roads, are modeled in MSC ADAMS/View. Data of the tire-road contact force and the vehicle body CM acceleration of both suspensions are then obtained from the simulations, received from MSC ADAMS PostProcessor. Furthermore, statistical analysis in IBM SPSS Statistics is employed to compare the data. The result shows that both types of suspension have no significant superiority to each other in terms of road holding (p-value of 0.154) and ride comfort (p-value of 0.248) attributes. Therefore, the conventional, linear rate suspension system would be the best choice for the application in the lower classes of rally since the absence of the additional linkages would offer better serviceability as well as lower the manufacturing and maintenance costs.

液压气动或空气悬架可能具有出众的乘坐质量，但是其严重损坏对于小型业余拉力车队而言可能太昂贵，困难且耗时，无法在有时间限制的拉力赛车场中解决。小型车队通常也很难认清其悬架系统的真正性能，因为整车测试和验证通常要在较晚的时间内进行，要用适度的设备或由驾驶员进行直接测试，从而在需要进行设计修改时导致风险更高，成本更高的返工。本文介绍了一种用于车辆悬架系统道路保持和乘坐舒适性评估的多体仿真和统计比较技术，并针对线性和渐进速率双叉骨悬架进行了比较，通过使用该技术，提出了在拉力赛车应用中选择廉价替代品的实际案例研究实例。最初，在通过激光扫描实际部件获得CAD模型后，在MSC ADAMS / View中对线性和渐进速率悬挂以及测试道路都进行了建模。然后从MSC ADAMS后处理器的仿真中获得两个悬架的轮胎-路面接触力和车身CM加速度的数据。此外，IBM SPSS Statistics中的统计分析用于比较数据。结果表明，两种类型的悬架在抓地力（p值为0.154）和乘坐舒适性（p值为0.248）方面都没有明显的优势。因此，常规