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在研究轮式拖拉机单拉杆式转向系的频率特性的基础上,本文对双拉杆式转向系的频率特性进行了研究。文中在建立起力学模型的基础上,推导出转向系统各环节的频率特性,给出了地面输入,系统输出的谱密度之间的传递关系。然后利用电子计算机对参数改变如何影响系统幅频特性进行数字模拟计算与分析,最后提出了对双拉杆式转向系振动问题的一些看法。
Based on the study of the frequency characteristics of single-lever steering system of wheeled tractor, the frequency characteristics of double-lever steering system are studied in this paper. Based on the establishment of the mechanical model, the frequency characteristics of all aspects of the steering system are deduced. The relationship between the input of the ground and the spectral density of the output of the system is given. Then, the influence of the parameter change on the amplitude-frequency characteristics of the system is simulated and analyzed by the electronic computer. Finally, some opinions on the vibration problem of the double-lever steering system are put forward.