GB/T 39523-2020 in English
VALIDTest method for torsional vibration of precision planetary cycloidal reducers
- Issued on:2020-11-19
- Implemented on:2021-09-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
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《GB/T 39523-2020精密行星摆线减速器扭转振动性能测试方法》由TC357（全国减速机标准化技术委员会）归口，主管部门为中国机械工业联合会。
Introduction
Interpretation of the core content of the standard
Definition of key terms
The standard clearly defines torsional vibration as the periodic vibration generated by an object around its axis of rotation. Its measurement parameters include:
- Angular displacement: the displacement characterized by the rotational degree of freedom (referenced from GB/T2298-2010)
- Circumferential acceleration: the tangential vibration component measured by the sensor
Technical requirements for test equipment
| Components | Technical requirements | Allowable deviation |
|---|---|---|
| Test load | The moment of inertia is configured according to the rated load | ＜1% |
| Sensor installation | Circumferential acceleration measurement direction | Deflection angle＜3° |
| System accuracy | Overall uncertainty | ＜1/3 of torsional vibration accuracy |
Key points of test implementation
Typical test process example
- Set the speed range to 300-2000r/min (step 100r/min)
- Forward and reverse rotation 3 full cycle tests
- Use Butterworth bandpass filtering (3-400Hz)
- Obtain displacement waveform through quadratic integration
Test data of a certain model 80E reducer shows that at 1200r/min, the peak value of circumferential vibration acceleration is 0.15m/s², and the converted angular displacement reaches 0.027mm (L=550mm).
Technology Evolution Analysis
Compared with traditional methods, this standard has three innovations:
- Introduction of wireless vibration data acquisition technology
- Specification of dynamic balance adjustment requirements (Clause 5.3.3)
- Provision of a variety of data processing solutions (Appendix C)
Implementation Recommendations
Enterprise Application Guide
Pay special attention to the quality control link:
- Test environment temperature and humidity control (23±5℃/RH≤50%)
- Sensor installation dynamic balance verification
- Use the moment of inertia value recommended in Appendix A
For R&D improvements, it is recommended to focus on the torsional vibration-speed curve analysis in clause 6.3.3, which can identify the resonant frequency point.
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