利用不平衡质量旋转产生离心力原理工作的机械振动试验台作水平振动时必需解决的一个问题,是克服由于激振力和振动质量(包括振动台体和试验负载)惯性力不重合而引起的颠复力矩,避免固此而使负载受到额外的摇摆激励。负载不同时,振动质量重心位置也不同,因而惯性力位置是变化的。解决问题的一般方法是采用导向机构,但这会带来其它问题。 A problem that must be solved when using a mechanical vibration test rig that operates using the principle of unbalanced mass rotation to produce centrifugal force is to overcome the problem caused by the fact that the inertial forces due to the excitation force and the vibrational mass (including the vibration body and the test load) do not coincide Complex torque, to avoid the solid so that the load is subject to additional swing excitation. When the load is different, the vibration mass center of gravity is also different, so the inertial force position is changed. The general solution to the problem is to use a steering mechanism, but this poses other problems.