Parallel solution simulation method of vector finite element based on labview and fpga

Abstract

The invention discloses a vector-finite-element parallel solving simulation method based on a LabVIEW and a FPGA. The method includes the steps that 1) preprocessing operation of a vector-finite-element model is carried out through the LabVIEW; 2) particle groups and unit groups of the vector-finite-element model are cut; 3) particle displacement forecasting procedures and particle information alternation procedures which correspond to the quantity of the particle groups and unit internal-force solving and particle internal-force assembling procedures which correspond to the quantity of the unit groups are written in the FPGA through the LabVIEW; 4) model particle responses needing to be viewed are stored in a FIFO storage from a terminal to a host; 5) a data communication interface between a main control computer and a FPGA hardware terminal is constructed, and data transmission between the main control computer and FPGA hardware and visualization of the FPGA-hardware calculated result are achieved. The vector-finite-element parallel solving simulation method based on the LabVIEW and the FPGA has the advantages of being high in operating speed, small in development difficulty, low in calculation cost, visual in data, capable of being packaged into a common module and the like, and is particularly suitable for analytical calculation of structural responses calculated by the vector-finite-element theory.

Description

Technical field [0001] The invention relates to the field of finite element simulation in the computer-aided design of civil engineering, in particular to a vector-type finite element parallel solution simulation method based on LabVIEW and FPGA. Background technique [0002] Vector finite element is a new type of structural behavior analysis method that has emerged in recent years. It is more efficient and convenient than traditional finite element when solving discontinuous or nonlinear mechanical behaviors such as large deformation, collision, collapse and elastoplasticity of the structure. Because civil engineering structures are often complex in shape and large in size, when using vector finite element to analyze their structural response, the numerical model that needs to be established contains a large number of mass points and elements, so the amount of calculation is extremely large. For the response analysis of complex structures, the time history response of tens of se...

AI Technical Summary

Problems solved by technology

The former is usually costly and requires a lot of energy to maintain communication between threads in a distributed computer system

The latter can effectively add parallel threads through its own multi-core processors to achieve the effect of parallel speed-up. However, since its multi-core processors are usually locked by the manufacturer when they leave the factory, the form of resource distribution is fixed by the manufacturer. Parallel operations are usually based on Among the multiple cores of the GPU, the calculation in each core is still performed in a sequential manner, and the flexibility is very limited.

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