其中基于振动测试的损伤诊断法可进一步分为直接的系统识别方法、损伤指标法和有限元模型修正法。
The damage diagnosis method based on vibration testing can be further classified as a direct system identification method, a damage index method and a finite element model modification method.
其次,根据损伤后的结构频率与模态的变化,应用径向基神经网络,进行结构节点固结系数的识别,从而实现对网架结构有限元模型的修正。
Secondly, according to the change of damage structural frequency and modal, the fixity factor is identified by RBF neural network, then FEM correction of truss is finished.
第二步是用一种结合灵敏度法和矩阵修正法的混合方法确定结构损伤的程度。
The second step determines the damage extent of the structural damages by a hybrid approach combining the sensitivity and the matrix adjustment for damage assessment.
由于实测信息的不完备,使得在利用传统的基于模型修正的数学方法进行结构损伤识别时,必须对结构的模型进行缩聚或对实测振型进行扩展。
For the measured information is far from complete, the model condensation or the mode shapes extension techniques have to be used in the traditional model updating method.
从微观统计的角度出发,通过岩石细观力学的分析、综合,修正前人的研究成果,从而建立温度—应力耦合下的盐岩损伤方程。
Based on previous studies and with the relation of statistical mechanics and fractal rock mechanics, the damage formulation of the coupled damage of temperature and mechanics is deducted.
本文结合室内试验结果,引入损伤的概念,考虑土的结构性,对邓肯—张模型进行了修正。
In this paper, basing on the results of soil tests, introducing the concept of damage, considering soil's structure, the author modify the Duncan - Chang model.
重建整形手术可矫正严重的功能性损伤,修正生理上的畸形,补正因外伤或手术造成的组织缺失。
Reconstructive plastic surgery corrects severe functional impairments, fixes physical abnormalities, and compensates for tissue lost to trauma or surgery.
本文的算例表明,所提出的修正模型能够成功分离出试验结果中的蠕变损伤和纯疲劳损伤。
A creep and fatigue damage model has been presented to explain fatigue test results. There is excellent consistency between the predicted and experiment data.
对桅杆最易发生疲劳损伤的节点做了应力分析,探讨了修正线性准则在桅杆疲劳寿命计算方面的应用及节点参数对其节点疲劳寿命的影响。
There analyze stress state in easy fatigue node on mast, discuss about how to use Miner rule in fatigue-life of mast and effect of node parameters for its fatigue-life;
对原来硅锭的四边平面垂直度起到修正功能,确保硅锭四面及棱角的损伤层有效的去除。
It can correct the verticality of the four faces of the original silicon ingots to ensure the affected layers of the four faces and edges are effectively removed.
对原来硅锭的四边平面垂直度起到修正功能,确保硅锭四面及棱角的损伤层有效的去除。
It can correct the verticality of the four faces of the original silicon ingots to ensure the affected layers of the four faces and edges are effectively removed.
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