This paper builds an extend timed place Petri Net model for the group production unit in HX shipyard,which based on the classification of work-in-process buffer to different functions and structures,and mapped Petri nets into eM-Plant simulation model.

Component mode synthesis method based on virtual elements

In this paper,the method of virtual element and generalized initial stress is presented for developing software on FEM analysis of geotechnical excavation.

The practice forms of virtual operation are mainly the virtual production,the virtual market.

Virtual Manufacturing——a New Pattern of Technical Innovation in Western Enterprises;

A 4-node reference surface plate/shell element combining with a virtual bar element is employed to numerically solve the nonlinear buckling equations using a revising arc-length iteration scheme.

The delaminated composite panel is simulated by a reference surface finite element combining with a virtual bar element to avoid the overlapping between two sublaminates at the delamination front.

A FE model of composite beam embedded with double through thickness delaminations is constructed using the technology of reference surface finite element and virtual bar element.