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Article Navigation> JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY> 2005> 14(3): 284-288
XIAO Yun-kui, LI Shi-yi, CAO Ya-juan, YANG Wan-cheng, FENG Han-sheng. Theoretical Analysis of Noise of Piston Knocking Cylinder Wall in Automotive Engines[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2005, 14(3): 284-288.
Citation: XIAO Yun-kui, LI Shi-yi, CAO Ya-juan, YANG Wan-cheng, FENG Han-sheng. Theoretical Analysis of Noise of Piston Knocking Cylinder Wall in Automotive Engines[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2005, 14(3): 284-288.
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Theoretical Analysis of Noise of Piston Knocking Cylinder Wall in Automotive Engines

  • 1.

    School of Mechatronics Engineering, Beijing Institute of Technology, Beijing 100081, China

  • 2.

    Military Transportation Institute of Tianjin, Tianjin300161, China

Funds:theMinisterialLevelFoundation(40407030108)
  • Received Date:2004-02-16
    Abstract
  • Based on the loading conditions of engine, applying difference method to solve the hydrodynamic lubrication equation of piston skirt movement, the force acting on piston skirt and the moment on wrist pin were obtained. A computer program for simulating the piston second order motion was conducted to calculate the lateral motion of the upper part and the bottom part of piston skirts of the engine of automotive model CA1091. From the simulated result, the maximal impacting phase and the maximal impacting region of the piston were obtained. The result can be used for designing engine, diagnosing the noise of piston knocking cylinder wall and explaining many practical fault phenomena in theory.
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