| 摘要 |
PURPOSE:To obtain a carbody of exceedingly by smooth and comfortable driving by preparing two resonance frequencies due to the difference of partial load rates of spring constants for a pair of mounting blocks. CONSTITUTION:The ratios of spring constants per load are allowed to take different values for a pair of mounting blocks holding on engine, such as a front mounting block 10 and a rear one 20 and their respective resonance frequencies are allowed to vary. In addition, the resonance frequency of the mounting block 10 is allowed to coincide with the resonance frequency determined by the longitudinal spring constant of the tires and the carbody weight and furthermore the resonance frequency of the mounting block 20 is allowed to coincide with that determined by the longitudinal spring constant of the tires and the load wheel weight. Two kinds of peaks at least of frequency characteristics of the vibration produced in the car body can be reduced by this method and vibration of the whole car body is allowed to be decreased exceedingly and comfortable drive can be obtained. |
