CQC-complete quaddratic combination,即完全二次项组合方法,其不光考虑到各个主振型的平方项,而且还考虑到耦合项,对于比较复杂的结构比如考虑平扭耦连的结构使用完全二次项组合的结果比较精确。 SRSS-Square root of sum square method,取各振型反应的平方和的方根作为总反应的振型组合方法。又称均方根法。©...
SRSS法和CQC法对于平面振动的多质点弹性体系,可以用SRSS法,它是基于假定输入地震为平稳随机过程,各振型反应之间相互独立而推导得到的;对于考虑平—扭耦连的多..
SRSS method is commonly used and known to give accurate estimates of responses for structures with widely spaced natural frequencies provided that the excitations are stationary random processes and each modal response is considered to be uncorrelated. However, seismic ground motions are not stationary ...
SRSS method for seismic analysis of mixed structure based on improved hysteretic damping model 在线阅读 免费下载 引用 收藏 分享 摘要 混合结构的阻尼矩阵不再满足经典阻尼条件,无法直接采用模态叠加法。迟滞阻尼模型具有每周期耗散能量与外激励频率无关的优点,且时域计算结果稳定收敛,但不满足能量守恒原则。利用...
本文应用瞬变振动理论统一地讨论了后座机构的安全与可靠作用条件,提出冲击响应谱规范法(Shock Response Spectrum Spesificationmethod 筒称 SRSS法),给出按要求的安全性及作用可靠性制定安全谱规范与可靠作用谱规范的方法。指出冲击响应谱规范的两个实际用途:一是定义两个谱规范所包的区域为机构可靠区,给出在可靠区上...
In regard to the combination procedure of the impulsive forces and the convective forces, Eurocode 8 suggests the absolute sum combination procedure of the impulsive forces and the convective forces, while the ACI, NZS, and IS suggest the Square Root Sum of the Squares method (SRSS) [14, 16...
Cross-Modal coefficients of CQC method in Chinese Seismic Code GB 50011-2001 and GB 50011-2010。 (1)振型扭转耦联系数与振型的周期比及阻尼比有关,在阻尼比一定的情况下,随着周期比的减小,耦联系数减小,并趋于0。即振型的周期越接近,扭转耦联系数越大,当振型周期(频率)相等时,扭转耦联系数为1。 (2)...
3. Hole dimensions differ according to the kind of PC board and piercing method. 4. If using double-sided through-hole PC board, it is necessary to confirm the resistance to the soldering heat on the PC board to be used and the soldering condition. Single sided paper based phenolic resin...
3. Hole dimensions differ according to the kind of PC board and piercing method. 4. If using double-sided through-hole PC board, it is necessary to confirm the resistance to the soldering heat on the PC board to be used and the soldering condition. Single sided paper based phenolic resin...
该方法还利用了稀疏性特征来降低计算复杂度,从而提高了性能和效率。在实际应用中,该方法可以应用于雷达、通信和遥感等领域,具有广泛的应用前景。A self-restoration method for sparse aperture arrays 点赞(0) 踩踩(0) 反馈 所需:1 积分 电信网络下载 ...