应用GPU求解的实时子结构试验架构与性能验证  

Performance verification of GPU-based framework for real-time hybrid testing

作　　者：董晓辉 唐贞云[1,2] 李振宝 杜修力[1] DONG Xiao-hui;TANG Zhen-yun;LI Zhen-bao;DU Xiu-li(The Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education,Beijing University of Technology,Beijing 100124,China;Hebei Key Laboratory of Earthquake Disaster Prevention and Risk Assessment,Sanhe 065201,China)

机构地区：[1]北京工业大学城市与工程安全减灾教育部重点试验室,北京100124 [2]河北省地震灾害防御与风险评价重点实验室,河北三河065201

出　　处：《振动工程学报》2022年第1期64-71,共8页Journal of Vibration Engineering

基　　金：国家自然科学基金面上项目(51978016);河北省地震灾害防御与风险评价重点实验室开放基金资助项目(FZ213104)。

摘　　要：使用图形处理器(GPU)代替传统中央处理器(CPU)作为数值求解硬件,建立基于LABVIEW-MATLAB-GPU的实时子结构试验架构。以土-结相互作用系统为载体,通过数值仿真与试验对该架构的性能进行验证。试验与仿真结果表明,本文方法将实时子结构试验中数值子结构求解自由度提高到27000,提升了数值模型求解规模,拓展了实时子结构试验应用范围。A RTHT framework based on LABVIEW-MATLAB-GPU is established,which uses graphics processor(GPU)instead of the traditional central processing unit(CPU)as the hardware for numerical solution.Taking a soil-structure interaction system as an example,the performance of the testing framework is verified through numerical simulation and RTHT testing.The testing and simulation results demonstrate that the proposed RTHT framework allows numerical substructure with 27000 DOFs to be solved in real time,hence that the application range of RTHT is expanded significantly by the calculation capacity of GPU.

关 键 词：实时子结构试验 图形处理器 数值积分算法 振动台 有限元模拟 

分 类 号：TU311.3[建筑科学—结构工程] TU352.1