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A Study on Noise Reduction of Gear Pumps of Wheel Loaders Based on the ICA Model

Author

Listed:
  • Panling Huang

    (School of Mechanical Engineering, Shandong University, Jinan 250061, China
    Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Shandong University, Ministry of Education, Jinan 250061, China)

  • Liang Xu

    (School of Mechanical Engineering, Shandong University, Jinan 250061, China
    Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Shandong University, Ministry of Education, Jinan 250061, China)

  • Chuan Luo

    (School of Mechanical Engineering, Shandong University, Jinan 250061, China
    Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Shandong University, Ministry of Education, Jinan 250061, China)

  • Jianchuan Zhang

    (School of Mechanical Engineering, Shandong University, Jinan 250061, China
    Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Shandong University, Ministry of Education, Jinan 250061, China)

  • Feng Chi

    (Shandong Lingong Construction Machinery Co., Ltd., Linyi 276023, China)

  • Qi Zhang

    (Shandong Lingong Construction Machinery Co., Ltd., Linyi 276023, China)

  • Jun Zhou

    (School of Mechanical Engineering, Shandong University, Jinan 250061, China
    Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Shandong University, Ministry of Education, Jinan 250061, China)

Abstract

In order to reduce the noise level of wheel loaders caused by gear pumps and realize environmentally sustainable development, the noise generation mechanism of a gear pump was studied, and the influence of flow pulsation and gear impact on noise was analyzed. In order to reduce the interference of other noise sources on the noise level of the gear pump, a noise test rig was established. The mixed noise signals obtained from the rig test were separated using the ICA model. The ICA model includes the following algorithms: The fast Fourier transform (FFT), independent component analysis (ICA) and inverse fast Fourier transform (IFFT). Some theories about the influence of the teeth number and teeth profile on noise were analyzed by theory and simulation. A noise reduction strategy was proposed by increasing the teeth numbers and modifying the teeth profile of the gear pump. The tests results showed that the noise values of the external and the driver’s ear of the wheel loader were reduced to 1 and 2.2 dB (A), respectively. This proves the effectiveness of the optimization scheme of gear pump noise reduction.

Suggested Citation

  • Panling Huang & Liang Xu & Chuan Luo & Jianchuan Zhang & Feng Chi & Qi Zhang & Jun Zhou, 2019. "A Study on Noise Reduction of Gear Pumps of Wheel Loaders Based on the ICA Model," IJERPH, MDPI, vol. 16(6), pages 1-13, March.
    • Handle: RePEc:gam:jijerp:v:16:y:2019:i:6:p:999-:d:215398
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