目的 针对打包机等包装机械液压缸设计标准多、系列化产品重复性设计的问题，提出液压缸参数化设计系统。方法 以Ansys为平台，利用C++和APDL，通过混合编程技术和软件通信技术实现Ansys软件的二次开发。结果 开发出了基于工况条件自动匹配缸体型号的参数化设计系统，建立了VC++与Ansys软件间的数据传输与通信，在Ansys环境中能自动完成缸体的建模与应力分析。结论 经验证，该系统的设计结果满足强度要求，对设计者与安装人员背景知识要求低，可满足绝大多数人员使用，对提高设计分析效率有较大帮助。

The work aims to put forward the parameterization design system of hydraulic cylinder with respect to the problems of various design standards of hydraulic cylinder and repetitive design of series products of such packaging machinery as packaging machine. With Ansys as the platform, the secondary development of Ansys software was achieved by C++ and APDL through the technologies of hybrid programming and software communication. The parameterization design system that automatically matched the cylinder model based on the working conditions was developed. The data transmission and communication between VC++ and Ansys software were established to automatically complete the modeling and stress analysis of the cylinder in the Ansys environment. After verification, the design results of the system meet the strength requirements. The requirements for the background knowledge of the designer and installation personnel are low. In such case, the system can be used by a vast majority of personnel and it will be a great help to improve the efficiency of design and analysis.