Abstract：Used to high-precision differential format of movement interface for deriving two-dimensional Navier-stokes equation， to directly simulate pressure and velocity flow field in based-upset board installation sharp wedge of collision point at different explosives detonation velocity， mainly analyze pressure distributions characteristic and duration action lasted form of explosive Composite plate explosion in sharp wedge zone， it will be found different degrees of anti-shock produced phenomenon under detonation pressure in substrate surface， also can simulate to find air medium flow distribution in fan-shaped jet state laminar flow bending shape between upset and based plate， this study can be certain reference for explosive welding melt layer formed analysis. A finite element model and its boundary conditions of quayside gantry crane are established in this paper. The first ten natural frequencies， the corresponding mode shapes and time-history of displacement response are given based on the analysis of the modes and dynamic response of this gantry crane system. The calculation and analysis above may be helpful for preventing the gantry crane from working on resonant area and for keeping the oversize dynamic deformation under restraint， which can be applied to design quayside gantry crane systems.
2013, Vol. 32 
