1) identification of flutter derivatives
气动导数辩识
2) identification of aerodynamic derivatives
气动导数识别
1.
As one of the important sections in the flutter and buffeting researches, the identification of aerodynamic derivatives is rather difficult and has not been perfectly solved yet.
颤振和抖振是大跨度桥梁抗风性能研究中的两个关键问题，而桥梁断面气动导数识别又是大跨度桥梁颤振和抖振性能研究中的一个重要环节，并且具有很大的难度，因此至今还没有得到完善的解决。
3) parameter identification
参数辩识
1.
The parameter identification of biological tissue based on genetic optimization;
生物组织热物性参数辩识的遗传优化
2.
The procedure using freely vibrating system response data for pseudomodal parameter identification of the simply supported beams system carrying moving mass is introduced.
然后介绍了一种新的从自由响应数据识别时变参数结构系统的伪模态参数的方法 ,并将该方法引入用于研究移动质量 -简支梁系统的参数辩识问题。
3.
Based on the theory of parameter identification,a method for calculating Manning roughuess in one-dimensional flow equation was theoretically deduced,and an optimal mathematical model for solving Manning roughness was set up.
根据参数辩识理论对一维水流方程中曼宁糙率的计算方法进行理论推导 ,建立一个求解曼宁糙率的最优模型 ;根据边界点观测值应用最速下降法 ,可得与实测资料相吻合的曼宁糙率最优解 。
4) coefficient identification
系数辩识
5) Aerodynamic derivative
气动导数
1.
The influence of aerodynamic force matrix on critical flutter state with aerodynamic derivatives of four different sections was studied.
采用集中气动力矩阵和一致气动力矩阵2种不同形式的气动力矩阵,并利用4种不同截面的气动导数研究了气动力矩阵对颤振临界状态的影响;采用理想平板的气动导数研究了各气动导数对颤振临界状态的影响。
2.
Aiming at improving the efficiency of wind tunnel test, we study the influence of aerodynamic derivatives C mδh , C mq , C mα and zα on the longitudinal dynamic characteristics of an airplane with a modern control system.
采用等效系统方法研究在失速迎角前大迎角区气动导数 Cmδh、Cmq、Cmα及 Czα 改变时对具有现代控制系统的战斗机纵向动态特性的影响。
6) flutter derivative
气动导数
1.
An improved stochastic subspace identification method for flutter derivatives of bridge decks
桥梁断面气动导数识别的改进随机子空间法
2.
Inter-relationships among flutter derivatives of thin plat model
薄平板模型气动导数之间的关系
3.
Effects of the asymmetry of equivalent stiffness and damping matrices on the identification of flutter derivatives of bridge deck are investigated by a series numerical simulation.
针对桥梁结构节段模型风洞测振试验中因风的作用而导致的系统刚度矩阵和阻尼矩阵的非对称性可能影响识别结果这一问题,利用状态空间法仿真薄平板模型在均匀风场中的自由衰减响应和紊流场中的抖振响应,分别采用特征实现算法(ERA)和随机子空间法(SSI),识别出均匀流场和紊流风场中的理想薄平板模型气动导数。
补充资料：辩识
1.通晓。
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