- 一般社団法人 日本機械学会
- 日本機械学會論文集 (ISSN:00290270)
- vol.18, no.74, pp.72-75, 1952 (Released:2008-03-28)
In this study, we compared two vibration characteristics of a car below the resonant speed, in a case, used as a motor car, and in the other case, used as a trailer. In the case of a motor car, about a half of motor weight is assumed to be unsprung weight over the trailer one. Results of the studies are as follows : -1°The natural periods of the car are not significantly different in the two cases, in both the vertical and transversal vibrations. 2°As to the vertical vibration. (1) Under 70 km/h, the heavier the unsprung weight becomes, the larger the vibration increases. (2) From 70 to 82 km/h, there are no difference. As to the transversal vibration. (3) Under 65 km/h, the vibration is larger in the heavier unsprung weight. (4) From 65 to 75 km/h, there are no difference. (5) Over 75 km/h, the vibration is rather small in the heavier unsprung weight.