【摘 要】
:
Based on the multi-rigid body discretization model, namely, finite segment model,a chain multi-rigid-body-hinge-spring system model of a beam was presented,then
【机 构】
:
Department of Engineering Mechanics,School of Civil Engineering,School of Mechanical and Electrical
论文部分内容阅读
Based on the multi-rigid body discretization model, namely, finite segment model,a chain multi-rigid-body-hinge-spring system model of a beam was presented,then a nonlinear parametrically exacted vibration equation of multi-degrees of freedom system was established using the coordination transformation method, and its resonance fields were derived by the restriction parameter method, that is, the dynamical buckling analysis of the beam. Because the deformation of a beam is not restricted by the discrete model and dynamic equation, the post buckling analysis can be done in above math model. The numerical solutions of a few examples were obtained by direct integrated method, which shows that the mechanical and math model gotten is correct.
其他文献
采用固相法分别制备了标准摩尔配比和铅过量10%的两种靶材,并利用脉冲激光沉积技术(PLD)在镧锶铝钽(LaSrAlTaO3,LSAT)单晶衬底上成功制备了锆钛酸铅(Pb(Zr0.3Ti0.7)O3,PZT)铁
Cluster coordination polymer {(n-Bu4N)2[Mo2O2S6Cu6Br4(4,4'-bipy)3]·0.5H2O)}n (4,4'-bipy=4,4'-bipyridine),has been synthesized and characterized by X-ray crysta
使用溶胶-凝胶法制备了Er3+单掺及Er3+/Yb3+共掺La2TiO5荧光粉体样品.经过1 100℃下3h的煅烧,得到了较好的微晶.X射线粉末衍射测试表明样品中不含杂质相.扫描电镜观察表明样
采用电化学阻抗和极化曲线法研究了绿色缓蚀剂聚天冬氨酸(PASP)对铜在200 mg·L-1的NaCl溶液中的缓蚀性能和吸附行为.结果表明,在20℃时,PASP使用的最佳浓度为15 mg·L-1,缓
增益窄化效应限制了啁啾脉冲放大系统输出的最短脉冲宽度,需要对注入放大系统的种子啁啾脉冲进行光谱整形,以保证放大后的啁啾脉冲光具有足够的带宽并满足特定的光谱分布.理
The curve equation and its mechanics analysis of suspended-cable under the condition of end load are given. Then on the basis of it, the mechanical analysis of
用能反映非线性结构的四阶累积量函数代替相关函数构造矩阵,对奇异值分解法进行改进.对比分析了用四阶累积量函数构造矩阵的多种方法,得到两种较好的构造矩阵的方法.其中当四
For the orthotropic piezoelectric plane problem, a series of piezoelectric beams is solved and the corresponding exact solutions are obtained with the trial-and
The three-dimensional numerical manifold method(NMM) is studied on the basis of two-dimensional numerical manifold method. The three-dimensional cover displacem
For the orthotropic piezoelectric plane problem, a series of piezoelectric beams is solved and the corresponding analytical solutions are obtained with the tria