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振动压路机由于在强烈的周期干扰力下进行工作,它的有些部件必然会产生剧烈的响应。因此,为使驾驶员有良好的操作环境和整机有足够的动强度,除了在上车和振动轮之间采用柔性支承对振源进行减振外,还应对整个上车进行严格的动力分析,以使上车的各阶固有频率及有关零部件的局部共振频率不与振动轮的工作频率、发动机的干扰频率相重合。因为,从减震器传递上来的即使是很小的干扰力,只要干扰力的频率与上车的某阶固有频率相同,也会使上车产生剧烈的振动。至于局部共振,它能将被传递的振动进行动力放大,直接影响到在其附近操作的驾驶员操作环境(如方
Because vibratory rollers work under intense cyclical disturbance forces, some parts of the vibratory rollers are inevitably violently responsive. Therefore, in order to make the driver have a good operating environment and the whole machine has enough dynamic strength, in addition to using the flexible support between the upper vehicle and the vibrating wheel to damp the vibration source, the entire vehicle should be subjected to a strict dynamic analysis. In order to ensure that the natural frequency of each step of the boarding car and the local resonance frequency of the relevant parts do not overlap with the operating frequency of the vibrating wheel and the interference frequency of the engine. Because even a small amount of disturbing force transmitted from the shock absorber causes the upper vehicle to generate violent vibration as long as the frequency of the disturbing force is the same as the certain natural frequency of the upper vehicle. As for the local resonance, it can amplify the transmitted vibration, directly affecting the operating environment of the driver operating near it (such as