一种单面瓦楞机新型压力辊机构的振动分析  

Vibration analysis for a new type pressure roller mechanism of a single-sided corrugated machine

作　　者：陈志君 杜群贵[1] CHEN Zhijun;DU Qungui(School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510640,China)

机构地区：[1]华南理工大学机械与汽车工程学院

出　　处：《振动与冲击》2019年第21期133-139,共7页Journal of Vibration and Shock

基　　金：广东省省级科技计划项目(2013B010203016)

摘　　要：单面瓦楞机新型压力辊机构工作过程中仍存在较大的振动,为了分析振动的原因并对其改进,建立了压力辊机构系统的振动微分方程,采用广义的Hertz接触理论计算了振动模型中接触刚度和接触阻尼的大小,把压力辊与上瓦楞辊啮合转动时中心距的变化量作为位移激励,分析了压力辊机构的振动特性,求得了振动响应。对机构进行振动测试,对比分析了理论解析与实验测试加速度曲线,并进行频谱分析,验证了模型的准确性。仿真对比了新旧压力辊机构的振动幅值,研究表明新型压力辊机构的减振是有效的,为压力辊机构的进一步优化提供了理论依据。A new type pressure roller mechanism of a single-sided corrugated machine was proposed, there still exist larger vibration in its working process. In order to analyze vibration cause and reduce it, the vibration differential equation for the pressure roller mechanism system was established. The generalized Hertz contact theory was used to calculate contact stiffness and contact damping of the vibration model. The variation of the center distance between the pressure roller and the upper corrugated one during their mesh rotating was taken as the displacement excitation. Then, vibration characteristics of the new type pressure roller mechanism were analyzed and its vibration response was solved. Vibration tests were conducted for the new pressure roller mechanism. The acceleration curve obtained with vibration tests was compared with that of theoretical analysis. The spectral analysis was performed for vibration acceleration curve to verify the correctness of the vibration model. Vibration amplitudes of the new type pressure roller mechanism and the old one were simulated contrastively. The results showed that the vibration reduction of the new type pressure roller mechanism is effective;the study results provide a theoretical basis for further optimizing the new type pressure roller mechanism.

关 键 词：压力辊 接触刚度 接触阻尼 振动幅值 振动测试 

分 类 号：TH212[机械工程—机械制造及自动化] TH213.3