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PROBABILISTIC WEAR LIFETIME OF HINGE CONFIGURATIONS RESOLVED ON
NUMERICAL SIMULATION
JIANG Qinyu1 LI Baoliang2 YI Feng3
(1. College of Mechanical Engineering, Dalian
University, Dalian 116622;
2. College of Mechanical Engineering, Dalian Jiaotong University, Dalian 116028;
3. Department of Mechatronic Engineering, Changshu Institute of Science and Technology,
Changshu 215500
)
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Abstract: Based on the discrete theory and computer technology and by numerical simulation method, with the wear state of hinge configurations in a crane-block mechanism as the object, a simulation model is established for the mild wear mode , in which load and temperature are taken into consideration, and a generally usable software is developed. By introducing the concepts of position vector and wear step, the continuous wear process is discreted, realizing the dynamic simulation of the movement law of the hinge mechanism. A concept of
probabilistic wear lifetime is presented. By Monte Calro method, an example is adopted showing that the credibility calculating of the probabilistic wear lifetime is realizable for the hinge mechanism, solving the credibility prediction for wear lifetime of components. Results show that the complex wear process could be simulated by numerical method, therefore the traditional research method only relying on experiment is overcome. By a series of discrete quasi static models, the dynamic non-linear wear problem that could not solved by the classical calculus is resolved, showing good prospects in practical engineering application.
Key words: Hinge configurations Wear
Numerical simulation Probabilistic lifetime
CLC No: TTH117.2
国家自然科学基金资助项目(50375022). Received 20060101, received in revised form 20060817
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