The effects of speed humps and bumps in slowing vehicles were investigated using a mass suspended on a spring. An impulse was applied to the mass by lowering and raising the top end of the spring by hand. The impulse duration was varied to simulate different driving speeds, and the displacement of the mass vs time was recorded with a video camera. Maximum displacement of the mass was observed when the impulse duration was about equal to the vibration period of the mass–spring system, consistent with a simple model of the system. The additional effect of a shock absorber is also examined. The experiment could be undertaken in a student laboratory or used as a lecture demonstration to gain deeper insights into impulsive forces and the behaviour of mass–spring systems.

中文翻译：

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一个简单的模拟颠簸和驼峰的实验

使用悬挂在弹簧上的砝码，研究了减速车辆中速度驼峰和颠簸的影响。通过用手降低和升高弹簧的顶端来施加冲击。改变脉冲持续时间以模拟不同的行驶速度，并用摄像机记录质量随时间的位移。当脉冲持续时间大约等于质量弹簧系统的振动周期时，观察到质量的最大位移，这与系统的简单模型一致。还研究了减震器的附加作用。该实验可以在学生实验室中进行，也可以用作演讲演示，以更深入地了解冲力和质量弹簧系统的行为。