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利用ANSYS软件的力学分析模块对埋地管道进行应力分析,存在建模过程不直观、分析效率低等问题。基于Winkler弹性地基梁理论,建立了埋地管道应力分析的模型,将其应用到VC对ANSYS软件的二次开发中,确定了建模的土弹簧理论计算公式。针对VC对ANSYS二次开发中关键的接口问题,运用参数化建模的方法建立了埋地管道应力分析模型,并对整个建模过程进行了封装。阐述了ANSYS的二次开发原理和基于参数化设计语言APDL程序的二次开发方法,并介绍了程序的具体封装过程和调用方法。应用结果表明:该软件便于操作,且提高了埋地管道应力校核效率。
The mechanical analysis module of ANSYS software is used to analyze the stress of buried pipelines, which leads to the problem that the modeling process is not intuitive and the analysis efficiency is low. Based on the Winkler elastic foundation beam theory, a model of stress analysis of buried pipelines was established, which was applied to the secondary development of ANSYS software by VC, and the formula of soil spring theory was established. Aiming at the key interface problem of secondary development of ANSYS by VC, the stress analysis model of buried pipeline is established by parametric modeling method, and the whole modeling process is encapsulated. The secondary development principle of ANSYS and the secondary development method based on APDL program of parametric design language are expounded, and the specific encapsulation process and calling method of the program are introduced. The application results show that the software is easy to operate and improves the stress checking efficiency of buried pipelines.