1) Guyan reduction
Guyan缩减
1.
Then Guyan reduction m.
基于振动分析的矩阵摄动理论,首先讨论了求取模态参数对结构物理参数灵敏度矩阵的方法,形成灵敏度矩阵的过程中避免了偏微分计算;基于灵敏度矩阵,建立了桥梁的损伤识别模型,并给出了此模型具体的求解方法;然后利用Guyan缩减的方法来缩减结构的模态自由度,保证了在进行损伤识别的过程中利用较少的模态参数,进而提高了方法的实用性;最后把所述方法应用于三跨预应力混凝土连续箱梁桥的实际损伤诊断工程。
2.
First, the newly added degrees of freedom (DOFs) are assumed to be linked to the original DOFs of the modified structure by means of the Guyan reduction so as to obtain the condensed equation.
首先,将新增加的自由度通过Guyan缩减方法凝聚到原始自由度上,形成凝聚方程。
2) Guyan matrix reduction
Guyan矩阵缩减
1.
In order to avoid a large number of DOF (degree of freedom) and time-consuming solution of equations in vehicle elastic dynamics analysis, the Guyan matrix reduction theory is used to select that part of the model that presents dynamic behavior.
为避免车辆弹性动力学分析中自由度数多、求解方程慢的问题,运用Guyan矩阵缩减理论选出模型中能描述动力学行为的部分。
3) Guyan method
Guyan法
1.
The disadvantage of Guyan method is demonstrated and an improvement is proposed.
针对Guyan法缩聚技术的不足之处作出改进,推导了相关公式。
2.
It is shown that the result for the second level reduced model using the successive-level Guyan method and the result for the first level reduced model by the successive-level improved Guyan technique are the most accurate.
结果表明:无论对哪种缩聚方法,并非缩聚模型的级数越高损伤识别效果越好,采用逐级近似的GUYAN法时第二级缩聚模型识别精度最高,采用改进GUYAN递推缩聚法时第一级缩聚模型识别精度最好。
4) reduction
[英][rɪ'dʌkʃn] [美][rɪ'dʌkʃən]
缩减
1.
Test suite reduction based on complex execution profile
基于复合执行剖面的测试用例缩减技术
2.
Advances on radar cross section reduction of microstrip antenna array
微带阵列天线雷达散射截面缩减技术研究进展
3.
A dynamic reduction iterative method based on Kuhar reduction for structural dynamic analysis is presented in this paper.
本文介绍了结构动力分析中基于Ｋｕｈａｒ方法的动力缩减迭代法，应用矩阵摄动理论证明了其收敛性，算例说明了方法的有效
5) reduction
[英][rɪ'dʌkʃn] [美][rɪ'dʌkʃən]
减缩
1.
The variations of the return loss,gain and radiation pattern of microstrip antenna before and after the reduction of the RCS are studied.
采用时域有限差分法(FDTD)方法以及新的含有内阻的磁流环激励同轴馈电模型研究了微带天线的辐射及散射特性,分析了集总负载加载和贴片表面开槽对微带天线雷达散射截面(RCS)的影响,研究了微带天线RCS减缩前后的回波损耗、增益及方向性的变化。
6) curtailment
[英][kə:'teilmənt] [美][kɝ'telmənt]
缩减
1.
Research on the "Negative Weight" in the Curtailment Index of GDP——Discussion with Xu Qiang;
对GDP缩减指数中“负权数”的研究——兼与徐强同志商榷
补充资料：缩减
1.见"缩减"。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条