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电机噪声和振动问题气动噪声是空气流引起的,冷却方式不妥就会增加噪声。发展4系列电机时做过许多试验,发现接近端盖处的通风噪声较大,因而采用尽量宽而大的叶轮。GK 型电机曾因端盖形状不佳产生过共振。每种型号的电机都认真做过试验,试验时,噪声、气流、风量、温升同时测试并做过记录;画出曲线进行分析比较。认为
Motor Noise and Vibration Problems Aerodynamic noise is caused by air flow and improper cooling can increase noise. During the development of the 4-series motors, many tests were carried out and it was found that the ventilation noise close to the end caps was large, thus adopting a wide and large impeller. GK-type motors have produced over-resonance due to the poor shape of the end caps. Each type of motor are carefully tested, the test, noise, air flow, air volume, temperature rise at the same time tested and recorded; draw curves for analysis and comparison. think