发明名称 |
Method and apparatus for simulating a mass or load on a stationary testing stand |
摘要 |
A torque moment is simulated in a rotary testing stand for test samples by providing a feed-back closed loop control circuit for controlling a torque moment generator. The feed-back control circuit generates a feed-back control signal by differentiating an angular velocity signal derived from a torque applying shaft and passing the differentiated signal through a proportional time element that has a controllable, variable time constant. Both the differentiating circuit and the time circuit are preferably controlled by a difference signal that represents a difference between the inertia moment of the test sample and the inertia moment of the testing stand. The output signal of the time circuit is compared in a comparator with an actual torque signal. The output of the comparator provides a rated or reference torque signal that is then used for adjusting the output of the torque generator to produce the required simulated torque load.
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申请公布号 |
US5657227(A) |
申请公布日期 |
1997.08.12 |
申请号 |
US19950485104 |
申请日期 |
1995.06.07 |
申请人 |
SCHENCK KOMEG, PRUEF- UND AUTOMATISIERUNGSTECHNIK GMBH |
发明人 |
FREITAG, GERNOT |
分类号 |
G01M17/007;(IPC1-7):G01M17/00 |
主分类号 |
G01M17/007 |
代理机构 |
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地址 |
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