［1］OLOVSSON L,SIMONSSON K,UNOSSON M.Selective Mass Scaling for Explicit Finite Element Analyses.［J］.International Journal for Numerical Methods in Engineering,2005,63（10）:1436-1445. coBi+s2n46UZ2EfAS7b1qRzIHhmmMvQPc00f4a1bh4NbN20bTMsiemD3bhExQ3im
