The new Lagrangian of the relative motion of mechanical system is constructed,thevariational principles of Jourdain’s form of nonlinear nonholonomic nonpotenti
This paper presents a curvilinear boundary quadrilateral element for the problem ofthin plate of bending with curvilinear boundary.A coordinate transformation o
Fundamental equations for the analysis of plane flow of elastic-viscous fluid are established.On such a basis,a perturbed-weighted residual finite element model