整理
发表于 2025-3-25 04:18:01
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misshapen
发表于 2025-3-25 10:51:29
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圆柱
发表于 2025-3-25 11:59:26
Textbook 20045th editionnalysis and techniques adaptable to computer programming clearly and easily. The book is ideal as a text for advanced undergraduates or graduate students taking a first course in structural dynamics. It is arranged in such a way that it can be used for a one- or two-semester course, or span the unde
incubus
发表于 2025-3-25 18:10:04
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松驰
发表于 2025-3-25 21:38:42
s: Theory and Computation is the complete and comprehensive text in the field. It presents modern methods of analysis and techniques adaptable to computer programming clearly and easily. The book is ideal as a text for advanced undergraduates or graduate students taking a first course in structural
neoplasm
发表于 2025-3-26 01:24:41
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矿石
发表于 2025-3-26 06:20:52
Reduction of Dynamic Matricesnding eigenproblem to determine natural frequencies and modal shapes will be difficult and, in addition, expensive. In such cases it is desirable to reduce the size of these matrices in order to make the solution of the eigenproblem more manageable and economical. Such reduction is referred to as ..
补充
发表于 2025-3-26 08:53:52
Dynamic Analysis of Plane Framese solved in general by the modal superposition method or by numerical integration of the differential equations of motion. In this chapter and in the following chapters, the dynamic analysis of structures modeled as frames is presented.
固定某物
发表于 2025-3-26 16:00:20
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Concomitant
发表于 2025-3-26 17:50:01
Dynamic Analysis of Three-dimensional Frameses and three rotational components about these axes. Consequently, a beam element of a three-dimensional frame or a space frame has for its two joints a total of 12 nodal coordinates; hence the resulting element matrices will be of dimension 12 x 12.