基于刚柔耦合模型的圆柱分度凸轮机构动力学分析

发布时间：2018-01-18 04:19

本文关键词：基于刚柔耦合模型的圆柱分度凸轮机构动力学分析　出处：《延边大学》2012年硕士论文　论文类型：学位论文

【摘要】：空间分度凸轮机构具有传动、导向和控制的多种功能,是一种高速高精度间歇式运动机构,广泛应用于包装、印刷、灯饰、制药的各种自动机械。空间分度凸轮机构相对传动间隙运动机构具有多种优势,如结构紧凑、刚性好、传动精密性好、可实现高速运动和各种运动规律等。空间分度凸轮机构主要有弧面分度凸轮机构、平行分度凸轮机构和圆柱分度凸轮机构,国内外对前两种机构的研究已经相对比较成熟。对圆柱分度凸轮机构,有些国家研究比较先进,并采用技术保密措施,国内的主要研究涉及凸轮廓面方程、压力角曲率分析、制造过程分析、运动学分析等,而对其动力学特性研究较少。基于以上分析,本论文以圆柱分度凸轮机构为研究对象,以提高圆柱分度凸轮机构的传动精度和稳定性为目的,利用空间坐标变换理论、三维造型方法、模态分析方法和动力学仿真分析方法,研究分析圆柱分度凸轮机构的计算机造型过程和动力学特性。该方法可以减小在物理样机试制阶段可能造成的危险和损失,缩短设计周期,提高设计效率,研究所得出的数据对设计和安装圆柱分度凸轮机构提供理论支持。在研究过程中,本文用Pro/E软件实现圆柱分度凸轮机构的三维实体建模,利用ANSYS软件完成圆柱分度凸轮机构中输入输出轴的模态分析,通过ADAMS软件实现圆柱分度凸轮机构的虚拟样机创建和刚柔耦合模型仿真分析。本文主要研究内容如下： 1)详细分析圆柱分度凸轮机构的主要结构参数,同时基于空间坐标变换理论,利用两坐标系统建立圆柱分度凸轮的廓面方程；基于该方程,利用Pro/E建立圆柱分度凸轮机构各部件模型并进行装配。 2)通过动力学仿真分析软件ADAMS建立圆柱分度凸轮机构虚拟样机模型并进行基础仿真,利用仿真数据和理论数据的对比验证模型的正确性。 3)分析及研究圆柱分度凸轮机构中输入输出轴的ANSYS模态分析方法。 4)研究圆柱分度凸轮机构的刚柔耦合建模方法,并在ADAMS中针对不同结构参数、不同工况进行刚柔耦合仿真分析,综合分析各种不同条件对圆柱分度凸轮机构动力学性能的影响。
[Abstract]:Spatial indexing cam mechanism has many functions of transmission, guidance and control. It is a high speed and high precision intermittent motion mechanism, which is widely used in packaging, printing and lighting. The space indexing cam mechanism has a variety of advantages over the drive clearance movement mechanism, such as compact structure, good rigidity, good transmission precision, and can realize high speed motion and all kinds of motion rules. The spatial indexing cam mechanism mainly includes globoidal indexing cam mechanism, parallel indexing cam mechanism and cylindrical indexing cam mechanism. Some countries are more advanced and adopt technical security measures. The main research in China involves the equation of cam profile, pressure angle curvature analysis, manufacturing process analysis, kinematics analysis and so on. Based on the above analysis, this paper takes the cylindrical indexing cam mechanism as the research object, in order to improve the transmission accuracy and stability of the cylindrical indexing cam mechanism. The spatial coordinate transformation theory, 3D modeling method, modal analysis method and dynamic simulation analysis method are used. The computer modeling process and dynamic characteristics of cylindrical indexing cam mechanism are studied and analyzed. This method can reduce the danger and loss caused by the physical prototype trial production, shorten the design period and improve the design efficiency. The obtained data provide theoretical support for the design and installation of cylindrical indexing cam mechanism. In the course of the research, the three-dimensional solid modeling of cylindrical indexing cam mechanism is realized by Pro/E software, and the modal analysis of input and output shaft in cylindrical indexing cam mechanism is accomplished by ANSYS software. The virtual prototype of cylindrical indexing cam mechanism and the simulation analysis of rigid-flexible coupling model are realized by ADAMS software. The main contents of this paper are as follows: 1) the main structural parameters of the cylindrical indexing cam mechanism are analyzed in detail. Based on the spatial coordinate transformation theory, the profile equation of the cylindrical indexing cam is established by using the two-coordinate system. Based on this equation, the model of cylindrical indexing cam mechanism is established by Pro/E and assembled. 2) the virtual prototype model of cylindrical indexing cam mechanism is established by dynamic simulation analysis software ADAMS, and the correctness of the model is verified by comparing the simulation data with the theoretical data. 3) analyzing and studying the ANSYS modal analysis method of input and output shaft in cylindrical indexing cam mechanism. 4) the rigid-flexible coupling modeling method of cylindrical indexing cam mechanism is studied, and the rigid-flexible coupling simulation analysis is carried out in ADAMS for different structure parameters and different working conditions. The influence of different conditions on the dynamic performance of cylindrical indexing cam mechanism is analyzed.
【学位授予单位】：延边大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH112.2

【引证文献】