文中较详细地介绍了复杂结构模型修改新技术、虚拟模态试验技术和振动台虚拟振动试验技术。
The new techniques are described in detail, including the mathematical model updating for complex structures, the virtual modal test techniques and the virtual vibration test techniques of shaker.
完成基于设计历史的版本图结构模型研究，描述和表示广义版本之间的复杂继承关系。
Fulfill the research of version graphic model based on design history, describe and express complex inheritance relationship of general versions.
由于工程体型复杂，进行了结构模型试验，模型试验的结果表明工程所采用的结构形式是安全合理的。
Because this project is complex, it has performed an experiment on the structure model. The result indicates that this kind of structural system is safe and reasonable.
以实测数据为依据，采用反问题解法构造了与实际结构刚度相当的虚拟结构模型，代替了复杂的实际结构模型。
Base on the practical data, the virtual structure, which has equivalent stiffness, is built by using inverse problem method. It can substitute the complex structure model in practice.
为保证复杂机械产品具有良好的设计结构和高效的配置求解，提出了一种基于树状约束的零部件族结构模型。
To ensure the quality of structure design and efficient configuration of mechanical products, a part family architecture model based on hierarchy tree constraints was proposed.
为保证复杂机械产品具有良好的设计结构和高效的配置求解，提出了一种基于树状约束的零部件族结构模型。
To ensure the quality of structure design and efficient configuration of mechanical products, a part family architecture model based on hierarchy tree constraints was proposed.
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