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为探究摆线轮磨齿机立柱振动特性,以磨齿机立柱组件为研究对象,建立其三维实体模型,并基于有限元仿真软件ANSYS进行了预应力下的模态分析,获得了组件的各阶固有频率及对应振型。为研究磨削加工下立柱的真实振动特性,搭建了振动实验平台,对采集的数据进行了时频特性分析,探究了立柱振动的机理。实验结果表明,立柱在低阶频率特性较好,同方向下磨削工况相比自由工况,同频率附近对应峰值处的最大振幅不超过4.7%。最后从振动角度对立柱的设计及优化提出了合理化的建议。
In order to explore the vibration characteristics of the column of the cycloidal gear grinding machine, the three-dimensional solid model of the grinding machine column was established and the modal analysis under prestress was carried out based on the finite element simulation software ANSYS. Order natural frequency and corresponding mode shapes. In order to study the real vibration characteristics of the column under the grinding process, a vibration experiment platform was set up, the time-frequency characteristics of the collected data were analyzed, and the mechanism of the column vibration was explored. The experimental results show that the column has better characteristics of low-order frequency, free operating conditions and maximum amplitude of 4.7% at the corresponding peak near the same frequency under the same grinding conditions. Finally, the rationalization of the design and optimization of the column is put forward from the perspective of vibration.