变阻尼层复合梁动力特性的优化分析.pdf

30 1 V o l. 30 No . 1 2010 2 F eb . 2010 J our nal o V ibration , M easurem ent Diag no sis 肖和业, 　盛美萍, 　陶红丹 ( , 710072) , , , : , ; , T B 132 T H 117 1 , , , , 1 , [ 1-3] : h2 ; h1 [ 1] ; H , , [ 2] T imoshenko , 1 , , [ 3] A N SY S [ 7] , , , , [ 4-5] 2 3 , d 1 2( h1 - h2 ) 2h2 2 B 1 1 + e + + 1 - , d 2 H H 2 ( h1 - h2 ) h2 d W( ) e1i + 2 - H H d ( di er ent ial tr ans or - 2 ( h1 - h2) 2h2 4 2 b1H + + 1 l W( ) = 0 ( 1) mat ion met ho d, DT M ) H H