四是研究了基于静态测量值的有限元模型修正技术。
The research also shows that it is better to update finite element model using local parameter than using globe prarameter.
本文提出了一种设计参数型的有限元模型修正方法。
What is presented in this paper is a method of finite element model updating via design parameters using test modal data.
本文论述线性常系数系统的有限元模型修正中的若干重要问题。
Several important problems for updating finite element model of linear constant coefficient system are demonstrated.
接口二次开发是目前结构有限元模型修正技术比较活跃的一个应用领域。
The connection quadric exploit is a quite active application domain of present structure computation model updating technology research.
提出一种通用有限元程序和数学软件相结合的大跨度桥梁有限元模型修正方法。
A modification method based on the combined universal finite element program and mathematic software for finite element model of long span bridge is proposed.
待修正参数的选择以及修正后模型的质量评估是有限元模型修正的两个重要问题。
Parameter selection and quality validation are of great importance in finite element model updating.
基于频响函数的结构有限元模型修正技术是当前结构动力学领域的重要研究方向之一。
Structure finite element model updating technology based on the frequency response function is one of the most important directions in current structure dynamics research.
本文就有限元模型修正方法进行了研究，并对航天器上广泛使用的蜂窝板有限元模型进行了修正。
The finite element model updating method is studied in this paper, and the finite element models of the honeycomb panels which are widely used in spacecraft design are updated.
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.
因此，需要进行有限元模型修正，以保证其分析结果能够准确反映施工过程，从而达到施工控制的目的。
Therefore, it needs finite element model updating to ensure the results of analysis reflect the construction process accurately and achieve the goal of construction control.
本文提出了依据神经网络方法完成大型空间网架结构节点固结系数的识别，实现空间网架结构有限元模型修正的方法。
The finite element model correction of large space truss is done by identifying its joint fixity factor based on neural net.
然后采用实验模态分析和有限元建模相结合的建模方法，获得了足够精度的传感器壳修正模型。
And then obtained the modification model of sensor shell with sufficient accuracy by adopting the combined modeling method of experimental modality analysis and finite element modeling.
基于代数特征值逆问题理论，提出了一种利用静力试验数据修正有限元模型方法。
Based on the theory of inverse algebraic eigenvalue problem, a method for correction finite element model by using test data is presented in this paper.
本文利用货车驾驶室的测试模态参数来修正其有限元动力分析模型。
Based on the modal test results of truck cab, the finite element model for dynamic analysis of the truck cab was modified.
依据神经网络的方法完成了对大跨度复杂体型网架结构有限元模型的修正。
Based on a special method of Neural Networks, the finite element model about a larger complex space latticed truss structure was corrected.
在有限元模型误差来源分析的基础上，提出了大跨桥梁结构模型误差的分层次修正方法。
On the basis of error analysis of finite element modeling, the multi-level model updating is put forward for long-span Bridges.
应用BP -神经网络法对数学模型进行修正，建立有限元数值模拟方法补充剔除数据并对数学模型适用范围进行扩展。
The mathematical models are amended by BP neural network algorithm, and method of finite element numerical simulation is used to compensate the removal data and extend the applied range.
本文将神经网络理论用于对利用有限元分析方法得到的系统模型进行修正。
In this paper, the model of the system established by the Finite Element Method will be updated by BP Neural Network theory.
基于该桥现场测量的模态数据，修正后的有限元模型获得了较好的改善。
Based on the measured modal data from prototype testing, the updated finite element model of the bridge has been significantly improved by modifying of uncertain structural parameters.
本文利用一组实测的不完全模态对所考虑结构的有限元理论模型进行修正。
This paper has made use of a set of measured incomplete modes to improve an analytical finite element model of the structure under consideration.
并利用基于响应灵敏度有限元法对该有限元模型进行了修正。
And the FEM is further updated by response sensitivity based model updating 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.
BERMAN修正方法基于无阻尼系统的模态正交条件，利用实验模态矩阵和特征值对有限元理论模型进行修正。
BERMAN updating arithmetic makes use of experimental model matrix and eigenvalue to modify the finite element academic model, based on the model orthographical condition of non-damping system.
修正结果表明：这种联合静动力的模型修正方法物理概念清楚，能充分利用静动力测试数据，经过修正后的有限元模型能够反映该桥的实际工作状态。
The updating result indicates that the physical conception of this combined static and dynamic model updating method is definite and can fully use the static and dynamic testing data.
本文主要研究结构动力模型修正中的数学理论与方法，研究了一类特殊结构模型修正问题，并为线性结构有限元动力模型修正提供了有效的数值方法。
This dissertation was to study the mathematical theories and methods for structural dynamical model updating. It gave the solutions and the numerical methods of a special structure model updating.
利用试验数据修正航天器结构动力模型时，使用缩聚方法使有限元自由度与试验自由度匹配。
When the spacecraft structural dynamic model is updated using test data, the freedom of FEM can be matched with test freedom by means of reduction method.
提出了一种基于不完备复模态测量数据修正阻尼陀螺系统有限元模型的有效数值方法。
An efficient numerical method for the finite-element model updating of damped gyroscopic system was developed based on incomplete complex modal measured data.
根据有限元分析的结果，对混凝土保护层锈蚀胀裂破坏的弹性力学模型进行修正，建立了混凝土保护层锈蚀胀裂时钢筋锈蚀量的计算模型。
According the result of ANSYS analysis, a new model based elasticity mechanics is developed for calculating the corrosion loss that need for concrete cover cracking.
最后再针对其他试验工况，将修正后的有限元模型与实验结果比对，以验证标准蜂窝结构来模拟泡沫铝夹芯的可行性。
In this paper, by modeling a actual foam sandwich panel, the aluminum foam sandwich simplifiedas standard honeycomb is preliminarily proved feasible.
最后再针对其他试验工况，将修正后的有限元模型与实验结果比对，以验证标准蜂窝结构来模拟泡沫铝夹芯的可行性。
In this paper, by modeling a actual foam sandwich panel, the aluminum foam sandwich simplifiedas standard honeycomb is preliminarily proved feasible.
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