Journal of Korean Society for Quality Management (품질경영학회지)

Korean Society for Quality Management (한국품질경영학회)
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Quality Improvement to Prevent Shifting Error of Tracked Vehicles

궤도차량 변속오류 예방을 위한 품질개선

  • Received : 2023.05.03
  • Accepted : 2023.05.30
  • Published : 2023.06.30
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Abstract

Purpose: The purpose of this study is to investigate the causes of shifting errors reported in military tracked vehicles and to improve related quality to prevent recurrence. Methods: A systematic disassembly and inspection of the transmission is carried out and an experimental simulation is conducted to reproduce the shifting error phenomenon. Electrical characteristic tests are subsequently performed and microscopic observation is also carried out on the disassembled connector parts such as pins and fractured surfaces. Results: Oil contamination and swelling deformation are observed in the connector to the vehicle due to oil leakage of its counterpart connector to the transmission. This causes electrical contact failure between both connectors in the fastened state, and it is found that shifting error of the tracked vehicle could occur subsequently. To prevent the recurrence of this phenomenon, comprehensive quality improvement is conducted including product improvement of the wiring harness assembly and strengthening activities for quality control and preventive maintenance. Conclusion: This study is expected to be helpful as a prior case study for cause analysis and recurrence prevention in the event of similar cases in the future.

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References

  1. Baek, H. M. et al. 2019. Failure Analysis of the First Article Endurance Tests of 1500HP Transmission. Journal of DQS 1(2):68-85.
  2. Choi, S. Min and Choi, J. H. 2017. A Study on the Retrofit Measures for KDX-II KVLS Hull Crack. Journal of Korean Society for Quality Management 45(3):393-402.
  3. Feng, C. et al. 2021. Study on the Influence of Fretting Wear on Electrical Performance of SMA Connector. Microelectronics Reliability 118:114047.
  4. Jang, S. et al. 2014. Evaluation of Fretting Wear Damage of Electronic Connectors for the Automotive. Transactions of KSAE 22(3):33-41. https://doi.org/10.7467/KSAE.2014.22.3.033
  5. Jung, J. et al. 2015. A Study on the Structural Integrity Assessment of the Output Housing in Transmissions of a Tracked Vehicle. Journal of the KIMST 18(1):8-14.
  6. Kim, B. R. et al. 2021. Analysis and Improvement of Factors Influencing the Transfer Alignment of INS of Underwater Projectile. Journal of Korean Society for Quality Management 49(3):245-254.
  7. Lee, S. et al. 2021. Analysis of How the Bonding Force between Two Assemblies Affects the Flight Stability of a High-speed Rotating Projectile. Journal of Korean Society for Quality Management 49(3):255-268.
  8. Lee, Y. W. et al. 2019. A Study on PU Strip Quality Improvement through a Change of Primer-process for SURION Main Rotor Blade. Journal of Korean Society for Quality Management 47(3):401-415. https://doi.org/10.7469/JKSQM.2019.47.3.401
  9. Lim, D. et al. 2022. A Case Study on Configuration Change for Preventing Propulsion Wire Fracture and Structural Deformation of Launch System of UAV. Journal of Korean Society for Quality Management 50(3):533-543. https://doi.org/10.7469/JKSQM.2022.50.3.533
  10. Nam, Y. et al. 2021. A Study on the Performance Improvement of Position Estimation using the Multi-Sensor Fusion in a Combat Vehicle. Journal of Korean Society for Quality Management 49(1):1-15.
  11. Park, J. et al. 2018. A Study on the way to Improve the Rear Van's Durability of Korean Light Tactical Vehicle. Journal of Korean Society for Quality Management 46(2):269-282.
  12. Park, J. W. and Kim, H. E. 2011. A Study on the Lifetime Assessment of Bearings According to the Output Shaft Supporting Structures in Transmissions of a Tracked Vehicles. Journal of Applied Reliability 11(4):331-342.
  13. Park, S. et al. 2010. Failure Analysis of a Planetary Gear Carrier of 1200HP Transmission. Engineering Failure Analysis 17(2):521-529. https://doi.org/10.1016/j.engfailanal.2009.10.001
  14. Shin, J. W. et al. 2017. A Case Study on the Effect of Nitriding for Chrome-plating Loss of Small Arms Barrel. Journal of Korean Society for Quality Management 45(3):327-334.  https://doi.org/10.7469/JKSQM.2017.45.3.327