基于ABAQUS的子结构拟动力试验方法研究

子结构拟动力试验将整体结构分为数值子结构与试验子结构,数值子结构通常采用研究人员自行编制的程序。研究了以ABAQUS为核心计算软件的子结构动力试验方法,介绍了利用Python语言编制的有限元软件接口,包括利用socket实现数据通讯、ABAQUS数据库的读取与写入以及利用Python在ABAQUS中建立分析步等。利用提出的方法进行了简单的虚拟试验,并与ABAQUS整体分析结果进行比较。比较结果显示了方法的可行性。通过对不同结构的虚拟实验,验证提出的软件通讯接口具有一定的通用性。

Research on substructure pseudo-dynamic testing method based on ABAQUS

Structure is divided into numerical substructure and experimental substructure in substructure pseudo-dynamic test. Numerical substructure is usually calculated by programs which are written by the researchers themselves. ABAQUS based substructure pseudo-dynamic testing method is investigated in this paper. Python is used to programming the finite element software interface. Key problems such as data exchange between substructure analysis program and ABAQUS, real-time inquiry of ABAQUS database and Python code to create analysis steps in ABAQUS are discussed. Socket module in Python is used to send and receive data between ABAQUS and substructure program. Several simple pseudo-dynamic substructure tests are conducted. Results are compared to time history analysis results calculated with ABAQUS to prove the feasibility of the method. Generality of the program used in this paper is also discussed.