Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Relationships between Free Gaps and Abnormal Noises of Vehicle Stabilizer Links

차량용 스테빌라이져 링크의 유격과 이상소음 발생의 상관관계

  • Han, Changwan (Department of Mechanical Engineering, Pusan National University) ;
  • Kim, Hanjong (Department of Mechanical Engineering, Pusan National University) ;
  • Yoo, Young-Jae (Department of Mechanical Engineering, Pusan National University) ;
  • Park, Seonghun (Department of Mechanical Engineering, Pusan National University)
  • Received : 2016.09.08
  • Accepted : 2016.10.18
  • Published : 2017.01.01
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Abstract

The vehicle stabilizer link is one of the suspension components that reduces the bumping and rolling during vehicle driving. However, this stabilizer link could be a source of the abnormal noises when its free gaps have higher than normal values. Therefore, the current study aims at investigating the quantitative relationships between the abnormal noises and free gaps of the vehicle stabilizer links, as well as the length of time that the vehicle stabilizer links could be used without generating abnormal noises. In this study, the abnormal noises were measured based on the magnitude of the stabilizer link vibration, while the free gaps were quantified through the force-displacement curves of the stabilizer links. Harsh durability tests were also conducted in order to quantify the operating cycles of the stabilizer links before generating the abnormal noises, along with the concomitant measurements of the free gaps. The current results showed that the abnormal noises of the stabilizer links were detected when its free gaps were larger than 0.12 mm. However, the free gaps of the stabilizer links, which are bigger than 0.1 mm, produced the abnormal noises at 1.5 million cycles under harsh durability test conditions. A parametric study in the future that would reflect the different shapes and sizes of the stabilizer links for diverse vehicles could determine more generalized relationships between the abnormal noises and free gaps of the vehicle stabilizer links.

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