J. KIMS Technol Search


Journal of the Korea Institute of Military Science and Technology 2009;12(3):266-271.
Vibration Analysis of a Heavy Truck via Road Tests
Oh-Seop Song, Kyung-Mo Nam
1Chungnam National University
주행시험에 의한 대형 트럭의 주행진동 특성 분석
송오섭, 남경모
Electronic equipments and a missile carried by heavy trucks are often subjected to vibration and shock excitation during their transportation. Electronic equipments are so vulnerable to vibration and shock input that it is necessary to know in advance the vibration level of the truck which cause the damage of equipments. Road tests of a heavy truck carrying a canister on different road conditions such as paved road, unpaved road, and washboard are performed and the effect of road conditions on the vibration characteristics are analyzed. Vibration levels were measured at various locations of the truck along the path through which vibration was transmitted. This study reveals that the velocity of the truck as well as the road surface conditions are main factors which affect the vibration levels of the truck. The power spectrum density of the measured vibration signal and the factors affecting the PSD are also analyzed in this paper.
Key Words: Heavy Truck, Road Test, Suspension, Frequency
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