车轮悬架的参数。悬架尝试通过施加线性力和阻尼力来到达目标位置。
值 suspensionSpring.spring 描述弹簧的刚度。其单位为牛顿米。更改弹簧强度会改变车辆响应道路颠簸所需的时间以及轮胎承受的载荷量，从而对操控产生深远的影响。较大的值会使悬架更快地到达目标位置，但代价是会增加载荷和操控的可变性。较小的值可提供更平稳、响应更迟钝的驾乘体验。
值 suspensionSpring.damper 描述弹簧消散其储能的速率。以每米牛顿秒数表示（相当于每单位速度的牛顿数）。较大的值会使悬架更慢地到达目标位置，较小的值会使汽车看起来更有弹性。车辆悬架通常具有接近临界阻尼的响应。
车轮的静止坐标由 suspensionSpring.targetPosition 指定。该值将车轮的静止坐标描述为沿 suspensionDistance 的范围 (0, 1) 中的分数。值 0 对应于完全伸展的悬架行程，值 1 对应于完全压缩的悬架行程。默认值为 0.5，它将车轮的静止坐标设置为悬架最大伸长与悬架最大压缩之间的中点。典型值的取值范围为 (0.3, 0.7)。
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