Wear of joints is an important factor influencing the performance of a mechanism, and wear prediction is of great significance to the design and maintenance of a mechanism. For the multiple joints in a complex motion mechanism, it is difficult to predict the wear in the joints accurately due to the complexity of the load and motion. To solve this problem, this paper proposes an integrated wear prediction method based on the monitoring data of motion output. The wear coefficient is treated as a random variable in analysis of the uncertainty in the processing, manufacturing and running environment. The mapping relationship between the motion output and the wear depth of multiple joints is deduced according to the kinematic model of the mechanism, and then the wear state data of the joint can be obtained according to the easily obtained monitoring data of the motion output (such as displacement, angle, etc.). On the basis of the obtained wear state data of the joints, distribution information of the wear coefficient is updated based on the Bayesian theory. With more monitoring data, the posterior distribution of the wear coefficient is more realistic. Based on the multibody dynamics model and the Archard wear model, the wear depth of joints is predicted. Wear experiment of a lock mechanism in an aircraft cabin door shows that the prediction error is about 6%, verifying the effectiveness of the proposed method.
YU Tianxiang
,
ZHUANG Xinchen
,
SONG Bifeng
,
SUN Zhongchao
. Integrated wear life prediction method of multiple joints in an aircraft linkage mechanism[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022
, 43(8)
: 625113
-625113
.
DOI: 10.7527/S1000-6893.2021.25113
[1] LI Y Y, WANG C, HUANG W H. Dynamics analysis of planar rigid-flexible coupling deployable solar array system with multiple revolute clearance joints[J]. Mechanical Systems and Signal Processing, 2019, 117: 188-209.
[2] 周金龙, 董凌华, 杨卫东. 直升机后缘襟翼驱动器迟滞现象仿真与抑制[J]. 航空学报, 2020, 41(4): 223384. ZHOU J L, DONG L H, YANG W D. Hysteresis modeling and suppression of piezoelectric actuator for helicopter trailing-edge flaps[J]. Acta Aeronautica et Astronautica Sinica, 2020, 41(4): 223384 (in Chinese).
[3] HANEEF M D, RANDALL R B, PENG Z. Wear profile prediction of IC engine bearings by dynamic simulation[J]. Wear, 2016, 364-365: 84-102.
[4] MUKRAS S, KIM N H, MAUNTLER N A, et al. Analysis of planar multibody systems with revolute joint wear[J]. Wear, 2010, 268(5-6): 643-652.
[5] BAI Z F, ZHAO Y, CHEN J. Dynamics analysis of planar mechanical system considering revolute clearance joint wear[J]. Tribology International, 2013, 64: 85-95.
[6] FLORES P. Modeling and simulation of wear in revolute clearance joints in multibody systems[J]. Mechanism and Machine Theory, 2009, 44(6): 1211-1222.
[7] WANG G X, LIU H Z. Dynamic analysis and wear prediction of planar five-bar mechanism considering multiflexible links and multiclearance joints[J]. Journal of Tribology, 2017, 139(5): 051606.
[8] LI P, CHEN W, LI D S, et al. Wear analysis of two revolute joints with clearance in multibody systems[J]. Journal of Computational and Nonlinear Dynamics, 2016, 11(1): 011009.
[9] LAI X M, HE H, LAI Q F, et al. Computational prediction and experimental validation of revolute joint clearance wear in the low-velocity planar mechanism[J]. Mechanical Systems and Signal Processing, 2017, 85: 963-976.
[10] GENG X Y, LI M, LIU Y F, et al. Non-probabilistic kinematic reliability analysis of planar mechanisms with non-uniform revolute clearance joints[J]. Mechanism and Machine Theory, 2019, 140: 413-433.
[11] 宿月文, 陈渭, 郭彩霞. 应用Winkler弹性基础模型的间隙铰接副磨损预测[J]. 摩擦学学报, 2012, 32(4): 320-324. SU Y W, CHEN W, GUO C X. Wear prediction of clearance revolute joints using winkler surface model[J]. Tribology, 2012, 32(4): 320-324 (in Chinese).
[12] 朱爱斌, 何胜利, 邹超, 等. 考虑接触刚度的含间隙铰接副动态磨损分析[J]. 西安交通大学学报, 2016, 50(5): 12-18. ZHU A B, HE S L, ZOU C, et al. Dynamic wear analysis of clearance joint considering contact stiffness[J]. Journal of Xi’an Jiaotong University, 2016, 50(5): 12-18 (in Chinese).
[13] AN D, CHOI J H, SCHMITZ T L, et al. In situ monitoring and prediction of progressive joint wear using Bayesian statistics[J]. Wear, 2011, 270(11-12): 828-838.
[14] ZHAO F Q, TIAN Z G, LIANG X H, et al. An integrated prognostics method for failure time prediction of gears subject to the surface wear failure mode[J]. IEEE Transactions on Reliability, 2018, 67(1): 316-327.
[15] FLORES P, AMBRÓSIO J, CLARO J C P, et al. Kinematics and dynamics of multibody systems with imperfect joints: Models and case studies[M]. Berlin: Springer Science & Business Media, 2008: 23-35.
[16] MUVENGEI O, KIHIU J, IKUA B. Dynamic analysis of planar rigid-body mechanical systems with two-clearance revolute joints[J]. Nonlinear Dynamics, 2013, 73(1-2): 259-273.
[17] LANKARANI H M, NIKRAVESH P E. Continuous contact force models for impact analysis in multibody systems[J]. Nonlinear Dynamics, 1994, 5(2): 193-207.
[18] MUVENGEI O, KIHIU J, IKUA B. Dynamic analysis of planar multi-body systems with LuGre friction at differently located revolute clearance joints[J]. Multibody System Dynamics, 2012, 28(4): 369-393.
[19] ZHU A B, HE S L, ZOU C, et al. The effect analysis of contact stiffness on wear of clearance joint[J]. Journal of Tribology, 2017, 139(3): 031403.
[20] 国志刚, 冯蕴雯, 冯元生. 铰链磨损可靠性分析及计算方法[J]. 西北工业大学学报, 2006, 24(5): 644-648. GUO Z G, FENG Y W, FENG Y S. Wear reliability of linkage under periodic loading[J]. Journal of Northwestern Polytechnical University, 2006, 24(5): 644-648 (in Chinese).
[21] LYON A. Why are normal distributions normal?[J]. The British Journal for the Philosophy of Science, 2014, 65(3): 621-649.
[22] AZZALINI A. A class of distributions which includes the normal ones[J]. Scandinavian Journal of Statistics, 1985, 12(2): 171-178.
CJA