Analysis and Improvement of Dynamic Characteristic of High-speed Opener Cam Mechanism

Lei An; Suohuai Zhang; Wangxing Huang

doi:10.16578/j.issn.1004.2539.2019.03.027

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Analysis and Improvement of Dynamic Characteristic of High-speed Opener Cam Mechanism

Development·Application | 更新时间：2022-10-03

- Analysis and Improvement of Dynamic Characteristic of High-speed Opener Cam Mechanism
- Journal of Mechanical Transmission Vol. 43, Issue 3, Pages: 139-144(2019)
- 作者机构：
  
  1.上海应用技术大学机械工程学院，上海 201418
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2019.03.027
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安磊,张锁怀,黄旺兴.高速开盒机凸轮机构的动态特性分析及改进[J].机械传动,2019,43(03):139-144.

An Lei,Zhang Suohuai,Huang Wangxing.Analysis and Improvement of Dynamic Characteristic of High-speed Opener Cam Mechanism[J].Journal of Mechanical Transmission,2019,43(03):139-144.
安磊,张锁怀,黄旺兴.高速开盒机凸轮机构的动态特性分析及改进[J].机械传动,2019,43(03):139-144. DOI： 10.16578/j.issn.1004.2539.2019.03.027.

An Lei,Zhang Suohuai,Huang Wangxing.Analysis and Improvement of Dynamic Characteristic of High-speed Opener Cam Mechanism[J].Journal of Mechanical Transmission,2019,43(03):139-144. DOI： 10.16578/j.issn.1004.2539.2019.03.027.

摘要

凸轮机构作为开盒机的主要机构，对其进行详尽的动态特性分析，将对开盒机的动态性能提升具有重要指导意义。将凸轮连杆和凸轮轴进行柔性化处理，建立凸轮机构的多柔体模型，对多刚体模型和多柔体模型的仿真结果进行了对比。基于多柔体模型，分析了输入转速、阻尼系数、材料参数和结构参数对机构动态性能的影响。结果表明，多柔体模型的仿真结果对开盒机的初始装配具有指导意义。减小凸轮厚度同时增大阻尼可以改善机构动态特性，使开盒机提速运行。同时，利用ANSYS对改变厚度后的凸轮进行模态分析，为避免共振和更为全面的动力学分析提供了依据。

Abstract

As the main mechanism of the opener， the cam mechanism has detailed dynamic characteristics analysis， which will have important guiding significance for the dynamic performance improvement of the opener. The cam link and the camshaft are flexibly processed to create a multi-flexible body model of the cam mechanism， and the simulation results of the multi-rigid body model and the multi-flexible body model are compared. Based on the multi-flexible body model， the effects of input speed， damping coefficient， material parameters and structural parameters on the dynamic characteristic of the mechanism are analyzed. The results show that the simulation results of the multi-flexible model have guiding significance for the initial assembly of the opener. Reducing the cam thickness and increasing the damping can improve the dynamic characteristics of the mechanism and enable the opener to run at a faster speed. At the same time， using ANSYS to perform modal analysis on the cam with varying thickness， a basis for avoiding resonance and more comprehensive dynamic analysis is provided.

关键词

凸轮机构跨越冲击动态特性模态分析

Keywords

Cam mechanismCross impactDynamic characteristicModal analysis

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