前后悬架刚度问题小弟曾经在网上看过关于汽车悬挂改装的文章上面好像说汽车前悬刚度比后悬刚度要强最近看一篇外国文献上面似乎说前悬硬度要小于后悬节选原文如下：Tominimizepitchi

Question

前后悬架刚度问题
小弟曾经在网上看过关于汽车悬挂改装的文章 上面好像说 汽车前悬刚度比后悬刚度要强最近看一篇外国文献 上面似乎说前悬硬度要小于后悬 节选原文如下：To minimize pitching（点头） motions,the front suspension should have a lower frequency than the rear suspension.Then the front takes longer for the rise and fall after hitting the bump,and the rear suspension"catches up"with the front.when the front and rear suspensions move simultaneously there is no pitching.................The front natural period(自然周期) should be greater than the rear natural period by the time it takes for the car to travel its wheelbase（轴距） length.Thus if you select the natural period for the rear ,you then calculate the natural period for the front by merely adding the wheelbase travl time to it.One divided by the natural period is the natural frequency.............................鉴于本人英语水平不高 专业理论不深 理解其内容大概是：防止 一定速度范围时遇到地面冲击时 前后轴距造成的 悬挂反应差异 导致的车身形态剧烈变化（点头）。要求前悬架反应要慢于后轮（周期大于后轮——刚度小于后轮）如果小弟没记错 这一理论似乎不同于实际情况 故希望高手给予诠释。小弟不胜感激！！！！

Answer 1

影响悬架刚度的主要因素是簧载质量和悬架形式
簧载质量决定了弹簧所需的提供的最大承载能力而悬架形式则可以决定他的动挠度和静挠度
在满足偏频的条件下决定了悬架的刚度