在应力检查旋转试验片通过至少一个振荡系统，它包括一个或多个致动器（12，15），用于产生一个激励振动的机械作用周期性振荡力的装置固定地支承，是在机台上的测试对象（1）和在旋转轴的方向 在其相对的存储DUT水平结束; 试样的至少一个端部是至少三个在圆周上均匀地间隔开约试样耦合杆具有耦合的致动器（12）无间隙基本上与旋转轴线（10），以使得所选择的激励振动的耦合杆（10），相应的力在试样 传递到旋转弯曲的验证。

In a device for load testing rotary specimens by mechanical action periodically oscillating forces of at least one oscillating system, which is a test sample one or more actuators (12, 15) for generating an excitation vibration supported on a machine table (1) is fixed and in the direction of the axis of rotation DUT at its opposite ends horizontally rotatably; at least one end of the test piece is coupled essentially without play at least three uniformly over a circumference around the rotational axis of the test specimen arranged coupling rods (10) with an actuator (12) such that the coupling rods (10) of the selected excitation vibration corresponding forces to the specimen transmitted for validation of rotating bending.