[논문]지게차용 엔진식 드라이브 액슬 수명평가를 위한 가속수명시험 선정 연구

김준영; 유영준; 이철희

doi:10.7839/ksfc.2023.20.3.009

지게차용 엔진식 드라이브 액슬 수명평가를 위한 가속수명시험 선정 연구
Accelerated Life Test Selection Study for Life Evaluation of Engine Type Drive Axle for Forklift 원문보기

드라이브ㆍ컨트롤 = Journal of drive and control, v.20 no.3, 2023년, pp.9 - 14

김준영 (Department of Mechanical Engineering, Inha University) , 유영준 (Department of Construction Machinery Engineering, Inha University) , 이철희 (Department of Mechanical Engineering, Inha University)

Abstract ▼ AI-Helper

In this paper, the selection of a reliable accelerated life test code for a 2-ton forklift was accomplished by choosing the driving resistance coefficient failure-free test time based on a 10,000-hour B10 life. The overall life and average equivalent load of the vehicle were then calculated based on actual driving test conditions using the selected driving resistance coefficient. The gear train's accelerated life test code was selected by adjusting the equivalent load to a torque and rotation speed that did not exceed 125%(about 75HP) of the vehicle rated power. The safety of the test standards was validated by conducting an actual accelerated life test utilizing the proposed test method in this study and comparing the test result with the corresponding theoretical value. It is anticipated that the reliability of the accelerated life test in this paper will be enhanced, by incorporating actual driving performance data collected directly from the forklift and adjusting the conditions used in developing the accelerated life test code.

주제어

표/그림 (11)

그림 Fig. 1 Forklift max. grade ability
그림 Fig. 2 Forklift c-course
표 Table 1 Rolling resistance coefficient
표 Table 2 Driving status and external conditions
표 Table 3 Equivalent load calculation
표 Table 4 Operation time and load factor
그림 Fig. 3 Drive axle accelerated life test layout
그림 Fig. 4 Drive axle accelerated life test
표 Table 5 Accelerated life test code
표 Table 6 Final accelerated life test code with increased load and rpm
표 Table 7 Power transmission efficiency and acceleration index

참고문헌 (6)

S. J. Cho, et. al.,"Development of the 80-kW Test？Tractor for Load Measurement of Agricultural？Operations", Journal of Drive and Control, Vol.19,？No.4 pp46-53, 2022
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Y. B. Lee, et. al.,"A Study on the Acceleration？Durability Test of In-Wheel Drive Gearbox for？Military Special Vehicles", Journal of Drive and？Control, Vol.19, No.3 pp32-38, 2022
J. H . Choet. al.,"Development of an Unmanned Test？System Based on Forklift for Mast Operation？Durability", Journal of Drive and Control, Vol.19,？No.4 pp70-76, 2022
J. H. Lee. "A Study on Structural Analysis and？Application of Accelerated Life Test for Steering？Axle of Electric Forklift" Kyungsang National？University, Masters Thesis, 2019.
K. B. Yang. "A study for the enhancement of the？fuel efficiency of eco-marathon vehicle" Kunsan？National University, Masters Thesis, 2003.

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