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随着科学技术的不断发展,振动(包括噪声)的模拟和研究广泛用于火箭,飞机、车辆、船舶、建筑、桥梁、地震等宇航事业及高速交通工具以及声学、雷达、导弹、通讯等国防和民用各个领域。实践证明,谐振频率是造成机载设备,航空附件和其他机构破坏和故障的主要原因之一。因为在谐振频率上结构的响应要比其他频率上的动态响应大得多。因此动态响应的测量分析得到迅速的发展。振动试验是保证飞行安全可靠的技术基础,同时也是新机设计中提出环境条件的主要
With the continuous development of science and technology, the simulation and research of vibration (including noise) are widely used in national defense such as rocket, aircraft, vehicle, shipbuilding, bridge, earthquake and other aerospace industries as well as high-speed vehicles as well as acoustic, radar, And civil areas. Practice has proved that the resonant frequency is caused by airborne equipment, aviation accessories and other institutions one of the main causes of damage and failure. Because the resonant frequency of the structure of the response than other frequencies on the dynamic response is much larger. Therefore, the dynamic response of the measurement and analysis has been rapid development. Vibration test is to ensure safe and reliable flight of the technical basis, but also the design of new aircraft put forward the main environmental conditions