摘要
在行星传动系统振动信号频谱中,存在类似于定轴齿轮传动系统故障信号的调制边带。为了研究行星齿轮传动系统的振动机理,深入研究行星齿轮啮合过程振动信号的传递特点,通过试验与仿真,分析验证了齿圈固定式行星齿轮箱振动信号受传递路径影响的变化规律,结合行星齿轮啮合过程中啮合力的周期性变化影响,推导了行星齿轮传动系统振动信号数学模型。通过仿真分析了两种不同结构类型行星齿轮传动系统振动信号的频谱特性,并分析了啮合频率周围调制边带产生的原因。最后进行了风电齿轮箱的现场测试,通过分析实测振动信号验证了所建立数学模型计算结果的正确性。
There is modulation in the spectrum of planetary gear sets' vibration signal, which is similar to those of fixed-shaft gear sets' fault signal. In order to explore the vibration mechanism of planetary gear sets, the characteristics of planetary gear sets vibration is further studied during the power transmission. Experiments and simulation results demonstrated how the vibration is influenced by meshing gear-pair in the transmission path of the planetary gear sets with a fixed ring gear. Meanwhile, considering the variation of meshing force in cyclic periods during the transmission, a mathematical model is established to describe the mechanism. Two types of planetary gear sets with different structures are investigated by simulation analyses to reveal the reason why the modulation sidebands exhibited. Experiments on a wind turbine planetary gearbox validate the effectiveness and correctness of the proposed model.
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2016年第7期46-53,共8页
Journal of Mechanical Engineering
基金
国家自然科学基金(51475169
51475160)
广东省自然科学基金团队(S2013030013355)资助项目
关键词
行星齿轮箱
调制
幅频函数
特征频率
数学模型
planetary gearbox
modulation
amplitude-frequency function
characteristic frequency
mathematical model