In this study, the abnormal noise phenomenon generated intermittently in the shock absorber of the combat armored vehicle was approached from the side of the squeak joint to solve the phenomenon. In order to identify the cause of the noise, the factors causing friction in the shock absorber were checked from the viewpoint of problem product analysis, process, and design. As an improvement plan, by improving the non-lubricated section in the nitrogen chamber, the operating noise was reduced to a level lower than that of a general automobile engine along with the elimination of noise. Considering that this is a combat vehicle, it is judged that it has been improved so as not to affect the survivability and health of the crew during equipment operation. Through the improvement of this study, it is expected to prevent power loss and improve the emotional quality of our soldier.

• 김록한(국방기술품질원) | Rok-Han Kim (Member, Defense Agency for Technology and Quality) Corresponding author
• 강승주(국방기술품질원) | Seung-Ju Kang (Defense Agency for Technology and Quality)
• 오은빈(국방기술품질원) | Eunbin Oh (Defense Agency for Technology and Quality)
• 이지완(현대로뎀) | Ji-Wan Lee (Hyundai-Rotem)