结合结构有限元的理论，研制了相应的结构分析程序系统。
Applying the theory of structural finite element method, the corresponding structural analysis program system is developed.
JIGFEX作为结构分析程序系统，已接入结构优化系统DDDU。
As a structural analysis program system, JIGFEX has been integrated into the system of structure optimization DDDU.
它们作为组合结构分析程序DDJ-W的后处理系统已在微机上实现。
These methods have been implemented on the macro-computers as the postprocessing system of structural analysis program DDJ-W.
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