| 摘要 |
An installation for testing rotating workpieces as regards their behavior at different rotational speeds and different torque loads of a test program by means of an electric driving and braking motor and by means of a hydraulic coupling, in which the rotor of the motor preferably constructed as D.C. machine is rigidly connected with one of the coupling parts, and in which a control installation is provided for loading the coupling with torque shocks of such frequency, with respect to which the motor acts as flywheel, and for loading the motor with torque changes of a frequency lying below the same.
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