125 results about "Mass matrix" patented technology

Disclosed is a deep-water pier seismic response evaluation method taking water-pier coupling effect into consideration. In the deep-water pier kinetic equation: P=-(M(1)ug(t)+M(2)us(t)), which takes water-pier coupling effect into consideration the M, the K and the C refer to quality matrix, rigidity matrix and damping matrix in the structure respectively, the ug(t) is the seismic oscillation acceleration time interval, the us (t) is the relative-movement displacement time interval of a pier, the u's (t) is the relative-movement speed time interval of the pier, the us(t) is the relative-movement acceleration time interval of the pier, the (M(1)) and the (M(2)) are the rigid-body associated mass matrix and the flexible associated mass matrix under water, and the P is the seismic oscillation water pressure load stressed on the pier. The deep-water pier seismic response evaluation method can be used for anti-seismic design and bearing force evaluation of a deep-water bridge structure under the action of earthquakes. Seismic response analysis of the pier of the deep-water bridge in finite element software can be conveniently performed, the factors, such as nonlinearity, interaction of soil-structural power and the like in materials can be considered during analysis, and the deep-water pier seismic response evaluation method is high in computing efficiency as compared with fluid-solid coupled numerical software and further provides the theoretical basis for the anti-seismic design of the deep-water bridge.