A general procedure to capture the 'dynanmic Stiffness' is presented in this paper. The governing equations of motion are formulated for an arbitrary flexible body in large overall motion based on Kane's ...A general procedure to capture the 'dynanmic Stiffness' is presented in this paper. The governing equations of motion are formulated for an arbitrary flexible body in large overall motion based on Kane's equations . The linearization is performed peroperly by means of geometrically nonlinear straindisplacement relations and the nonlinear expression of angular velocity so that the 'dynamical stiffness' terms can be captured naturally in a general tcase. The concept and formulations of partial velocity and angular velocity arrays of Huston's method are extended to the flexible body and form the basis of the analysis. The validity and generality of the procedure presented in the paper are verified by numerical results of its application in both the beam and plate models.展开更多
This paper is an exploration of how London is portrayed differently in two poems--William Wordsworth＇s Composed upon Westminster bridge and William Blake＇s London. In Wordsworth＇s poem Composed upon Westminster bri...This paper is an exploration of how London is portrayed differently in two poems--William Wordsworth＇s Composed upon Westminster bridge and William Blake＇s London. In Wordsworth＇s poem Composed upon Westminster bridge, the natural beauty of London is impressed deeply upon every reader. On the contrary, William Blake describes a dark, inactive and suffering city of London. With detailed analysis of the texts of the two poems, this paper shows how the two poets express different views of London.展开更多
文摘A general procedure to capture the 'dynanmic Stiffness' is presented in this paper. The governing equations of motion are formulated for an arbitrary flexible body in large overall motion based on Kane's equations . The linearization is performed peroperly by means of geometrically nonlinear straindisplacement relations and the nonlinear expression of angular velocity so that the 'dynamical stiffness' terms can be captured naturally in a general tcase. The concept and formulations of partial velocity and angular velocity arrays of Huston's method are extended to the flexible body and form the basis of the analysis. The validity and generality of the procedure presented in the paper are verified by numerical results of its application in both the beam and plate models.
文摘This paper is an exploration of how London is portrayed differently in two poems--William Wordsworth＇s Composed upon Westminster bridge and William Blake＇s London. In Wordsworth＇s poem Composed upon Westminster bridge, the natural beauty of London is impressed deeply upon every reader. On the contrary, William Blake describes a dark, inactive and suffering city of London. With detailed analysis of the texts of the two poems, this paper shows how the two poets express different views of London.
