{"id":5540,"date":"2026-05-04T11:07:44","date_gmt":"2026-05-04T03:07:44","guid":{"rendered":"\/jase\/?post_type=tkuisotope&p=5540"},"modified":"2026-05-04T23:13:53","modified_gmt":"2026-05-04T15:13:53","slug":"jase-202609-32-025","status":"publish","type":"tkuisotope","link":"\/jase\/?tkuisotope=jase-202609-32-025","title":{"rendered":"Competitive Reliability Analysis of Heavy-Duty Gears in The Shearer\u2019s Cutting Part"},"content":{"rendered":"\n
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<\/i> 2026<\/a><\/p>\n<\/div>\n\n\n\n

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<\/i> Volume 32<\/a><\/p>\n<\/div>\n\n\n\n

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Minghao Li1,2<\/sup><\/i><\/a>, Shuting Wang1,2<\/sup>, Dongsheng Wu1,2<\/sup>, and Lijuan Zhao3,4<\/sup><\/p>\n\n\n\n

1<\/sup>School of Mechanical Engineering, Shenyang Ligong University, Shenyang, 110159, China<\/p>\n\n\n\n

2<\/sup>Science and Technology Development Corporation, Shenyang Ligong University, Shenyang, 110159, China<\/p>\n\n\n\n

3<\/sup>College of Mechanical Engineering, Liaoning Technical University, Fuxin 123000, China<\/p>\n\n\n\n

4<\/sup>Liaoning Provincial Key Laboratory of Large-Scale Mining Equipment, Fuxin 123000, China<\/p>\n<\/div>\n\n\n\n

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Received: March 7, 2026
Accepted: March 31, 2026
Publication Date: May 4, 2026<\/p>\n<\/div>\n<\/div>\n\n\n\n

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Overall Model of the Shearer Cutting Unit <\/p>\n<\/div>\n<\/div>\n\n\n\n

<\/i> Copyright <\/strong>The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0)<\/a>, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.<\/p>\n\n\n\n

Download Citation:\u00a0 BibTeX <\/a>| http:\/\/dx.doi.org\/10.6180\/jase.202609_32.025<\/a>\u00a0\u00a0<\/p>\n\n\n\n

Download PDF<\/a><\/p>\n\n\n\n

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To improve the working efficiency of the cutting head of a coal cutter, studying the reliability of the heavy-duty gears in the cutting head under the condition of competitive failure was an effective approach. A reliability model for the gears under natural aging and sudden shock failure is established using stochastic processes. The three forces and three torques acting on the gears were obtained using mechanical system simulation software,
and the fatigue damage accumulation value of the gears was obtained using fatigue analysis software. The reliability model for the large gear in the cutting head under the competitive failure condition of natural aging and sudden shock failure is obtained based on the stochastic process solution parameters. The results show that the competitive reliability model proposed in this paper is beneficial for improving the accuracy of gear reliability calculation and thereby improving the working efficiency of the cutting head of the coal cutter.<\/p>\n\n\n\n

Keywords: Gear; Stochastic process; Fatigue analysis; Competing reliability<\/em><\/p>\n\n\n\n

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  1. [1] X. Fu, Y. Fang, Y. Xu, H. Xu, G. Ma, and N. Peng, (2024) \u201cCurrent Status of Research on Fault Diagnosis Using Machine Learning for Gear Transmission Systems\u201d Machines 12(10): 679. DOI: 10.3390\/machines12100679.<\/li>\n
  2. [2] Q. Li, R. Yun, Z. Song, and S. Wei, (2016) \u201cAnalysis on reason of fracture and Improvement for planetary mechanism of shearer cutting unit\u201d Coal Science and Technology 44(05): 172\u2013176. DOI: 10.13199\/j.cnki.cst.2016.05.033.<\/li>\n
  3. [3] R. ZHANG, L. ZHU, and Y. ZHANG, (2019) \u201cExperimental Research of Dynamic Characteristics for Long Wall Shearer Cutting Unit Gearbox in Straight Line Cutting\u201d Journal of Northeastern University (Natural Science) 40(12): 1744\u20131749. DOI: 10.12068\/j.issn.1005-3026.2019.12.014.<\/li>\n
  4. [4] J. Liu. \u201cResearch on the Mechanical Characteristics of Transmission Parts in Gear Transmission System of a Shearer Cutting Section\u201d. (mathesis). Liaoning Technical University, 2023. DOI: 10.27210\/d.cnki.glnju.2023.000477.<\/li>\n
  5. [5] L. Sheng, J. Chen, S. Jiang, and W. Li, (2024) \u201cResearch on the Reliability of the Gear System in Shearer Cutting Transmission Section\u201d Machinery Design & Manufacture (6): 75\u201380. DOI: 10.19356\/j.cnki.1001-3997.20240319.005.<\/li>\n
  6. [6] W. Li and H. Pham, (2005) \u201cReliability modeling of multi-state degraded systems with multi-competing failures and random shocks\u201d IEEE Transactions on Reliability 54(2): 297\u2013303. DOI: 10.1109\/TR.2005.847278.<\/li>\n
  7. [7] L. Jiang, Q. Feng, and D. W. Coit, (2012) \u201cReliability and Maintenance Modeling for Dependent Competing Failure Processes With Shifting Failure Thresholds\u201d IEEE Transactions on Reliability 61(4): 932\u2013948. DOI: 10.1109\/TR.2012.2221016.<\/li>\n
  8. [8] M. Fan, Z. Zeng, E. Zio, and R. Kang, (2017) \u201cModeling dependent competing failure processes with degradation-shock dependence\u201d Reliability Engineering & System Safety 165: 422\u2013430. DOI: 10.1016\/j.ress.2017.05.004.<\/li>\n
  9. [9] C. CHANG and J. ZENG, (2015) \u201cReliability modeling for dependent competing failure process under extreme shock\u201d Systems Engineering – Theory & Practice 35(5): 1332\u20131338. DOI: 10.12011\/1000-6788(2015)5-1332.<\/li>\n
  10. [10] X. Liu, Z. Wu, Y. Yuan, W. Sun, and J. Gao, (2025) \u201cReliability Modeling of Wind Turbine Gearbox System Considering Failure Correlation Under Shock-Degradation\u201d Sensors 25(14): DOI: 10.3390\/s25144425.<\/li>\n
  11. [11] H. Peng, Q. Feng, and D. W. Coit, (2010) \u201cReliability and maintenance modeling for systems subject to multiple dependent competing failure processes\u201d IIE transactions 43(1): 12\u201322. DOI: 10.1080\/0740817X.2010.491502.<\/li>\n
  12. [12] Z. Wang, H.-Z. Huang, Y. Li, and N.-C. Xiao, (2011) \u201cAn approach to reliability assessment under degradation and shock process\u201d IEEE Transactions on Reliability 60(4): 852\u2013863. DOI: 10.1109\/TR.2011.2170254.<\/li>\n
  13. [13] W. Huang and D. Dietrich, (2005) \u201cAn alternative degradation reliability modeling approach using maximum likelihood estimation\u201d IEEE transactions on reliability 54(2): 310\u2013317. DOI: 10.1109\/TR.2005.845965.<\/li>\n
  14. [14] Y. Sun, Y. Li, C. Gu, Q. Zhang, and K. Chen, (2025) \u201cDynamic reliability modeling and analysis of small modulus gear wear based on the Wiener process\u201d Scientific Reports 15: DOI: 10.1038\/s41598-025-09419-8.<\/li>\n
  15. [15] X. LU, W. CHU, W. GAI, and D. CHEN, (2025) \u201cReliability modeling method in presence of non-conjugate distributions of random parameters\u201d Journal of National University of Defense Technology 47(1): 230. DOI: 10.11887\/j.cn.202501023.<\/li>\n
  16. [16] J. Tang and H. Zhou, (2025) \u201cStep-stress accelerated degradation test for Inverse Gaussian process based on M-optimality criterion\u201d Scientific Reports 15(1): DOI: 10.1038\/s41598-025-15171-w.<\/li>\n
  17. [17] X. Liu, H. Wang, and X. Xu, (2017) \u201cReliability Assessment Based on Competition Failure Considering Multidegradation and Catastrophic Failure\u201d China Mechanical Engineering 28: 7\u201312. DOI: 10.3969\/j.issn.1004-132X.2017.01.002.<\/li>\n
  18. [18] V. Couallier. \u201cSome recent results on joint degradation and failure time modeling\u201d. In: Probability, Statistics and Modelling in Public Health. Springer, 2006, 73\u201389. DOI: 10.1007\/0-387-26023-4_6.<\/li>\n
  19. [19] C. Liu, D. Qin, and Y. Liao, (2016) \u201cDynamic Analysis for the Cutting Electromechanical Transmission System in the Long-wall Shearer\u201d Journal of Mechanical Engineering 52(7): 14\u201322. DOI: 10.3901\/JME.2016.07.014.<\/li>\n
  20. [20] H. Liu, B. Zhang, C. Zhu, and P. Wei, (2022) \u201cState of Art of Gear Contact Fatigue Theories\u201d Journal of Mechanical Engineering 58(03): 95\u2013120. DOI: 10.3901\/JME.2022.03.095.<\/li>\n
  21. [21] G. Li, S. Zhang, L. Bian, F. Wang, Y. Feng, W. Liu, M. Zhang, and M. Qin, (2025) \u201cStrength verification and failure analysis of wind turbine main shaft based on actual wind field loads\u201d Machine Design and Manufacturing Engineering 54(7): 15\u201320. DOI: 10.3969\/j.issn.2095-509x.2025.07.004.<\/li>\n
  22. [22] Z. Zhao, (2025) \u201cAnalysis of Fatigue Wear Problems and Optimal Design of Output Spindle of Coal Cutting Section of Coal Mining Machine\u201d Mechanical Management and Development 40(9): 197\u2013199. DOI: 10.16525\/j.cnki.cn14-1134\/th.2025.09.070.<\/li>\n
  23. [23] X. Pang, Y. He, X. Chen, J. Zhao, X. Luo, and K. Lv, (2025) \u201cResearch on Debris Characteristics and Wear Mechanism of Gear Material 18CrNiMo7-6 Used in Mining Reducer Under Dust-Contaminated Lubrication\u201d Lubricants 13(3): DOI: 10.3390\/lubricants13030107.<\/li>\n<\/ol>\n<\/div>\n\n\n\n

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