compose 发表于 2025-3-28 16:40:42
Nguyen Van Dinh,Tran Kim Chi and managing risks of extreme events. It focuses on natural disaster risk, but also discusses the management of terrorism risk. A unique feature of this book is the involvement of three leading catastrophe modeling firms, AIR Worldwide, EQECAT, and Risk Management Solutions, who examine the role ofarchaeology 发表于 2025-3-28 20:10:10
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,Stability Improvement of the Impact Dynamical Systems — Analytical and Numerical Methods,and their stability, the influence of damping and friction on vibro-impact dynamics, elastic and plastic type impacts, time histories and phase portraits of the vibro-impact systems have been considered .异端 发表于 2025-3-29 15:02:34
Theoretical and Experimental Evidence of Symmetric Response Instability in the Finite, Planar Dynamthis paper. In particular, the finite, forced dynamics of elastic structures having initial curvature show a series of interesting phenomena due to the presence of both symmetric and non symmetric nonlinearities. In the case of a circular arch excited by an harmonic vertical load applied on the tipinfatuation 发表于 2025-3-29 15:51:50
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Elimination of Instabilities in Rotors Supported in Gas Bearings,ity occurs. This instability is caused by the loss of damping properties of the gas film, which leads to self-excited vibrations. These vibrations are the basic obstacle to a widespread application of gas bearings. The phenomenon of self-excited vibrations can be avoided by introducing an elastic su