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建立了拖拉机整机７自由度的数学模型，着重分析了拖拉机前桥系统的传递特性和动态响应，通过拖拉机在ＭＴＳ道路模拟机上的激振试验对上述理论分析结果进行了验证。
The mathematic model of 7 degrees of freedom of the whole tractor is established. The transfer characteristic and dynamic response of the tractor front axle system are emphatically analyzed. The theoretical analysis results are verified by the vibration test of the tractor on the MTS road simulator.