摘要
针对影响拖拉机噪声的因素,分别进行了发动机罩侧板、不同类型风扇、机罩内壁粘贴隔音棉、供油提前角及不同消声器对噪声影响试验。研究表明带侧板比不带侧板最高可降低2.17 dB(A)拖拉机噪声,发动机机罩粘贴隔音棉比不粘贴可有效的降低了0.73 dB(A)噪声。其他几种因素对拖拉机噪声影响不明显。通过对拖拉机噪声产生机理分析,及影响拖拉机噪声因素的试验,为后续拖拉机设计提供参考。
It is well known that many factors can affect tractor noise.During the present study,the influence of the hood side panels,different fan specifications,hood inner wall with or without pasting sound insulation cotton,oil supply advance angle,and different muffler on the tractor noise has been carried out.The experimental results have shown that the tractor with side panels than the tractor without side panels can reduce up to 2.17 dB(A)tractor noise.And the inner wall with pasting sound insulation cotton engine than not paste can effectively reduce the tractor engine running noise,about 0.73 dB(A).Fan specifications have no significant impact on tractor noise.The type of cooling fan,oil supply advance angle,and muffler size does not have a significant effect on tractor noise.Meanwhile,the influence mechanism of factors on noise is analyzed.The preset study can provide for the tractor design in the future.
作者
王琳
陈廷坤
丛茜
WANG Lin;CHEN Tingkun;CONG Qian(State Key Laboratory of Intelligent Agricultural power Equipment,Luoyang 471039,China;College of Biological and Agricultural Engineering,Jilin University,Changchun 130022,China;Key Laboratory of Bionic Engineering,Ministry of Education,Jilin University,Changchun 130022,China)
出处
《拖拉机与农用运输车》
2023年第3期22-25,共4页
Tractor & Farm Transporter
基金
拖拉机动力系统国家重点实验室开放项目(SKT20022002)
国机集团青年科技基金项目任务计划“设施园艺典型作物生长过程信息感知技术研究”(QNJJ-PY-2022-25)。
关键词
拖拉机
噪声
试验
研究
Tractor
Noise
Experiment
Research
