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.
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 accuracy of model and its method is verified by modal test. The construction and analysis of the frame model is very important to the virtual development of the new IVECO car.
通过与车架模态试验结果对比，验证了模型和建模方法的准确性，对IVECO新车型的虚拟开发具有重要意义。
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