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Research on Noise of Engine Distribution Mechanism for CG125 Motorcycle

Author: YuLu
Tutor: ShuHong；LiChaoYang
School: Chongqing University
Course: Vehicle Engineering
Keywords: Motorcycle Engine noise Valve Train Valve clearance
CLC: U483
Type: Master's thesis
Year: 2008
Downloads: 73
Quote: 0
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Abstract


With the development of industry, transportation and social progress , as the main driving force behind the engine noise , the ever-increasing demands . The noise has become an important indicator of the evaluation of the performance of the engine , carry out engine noise analysis and control research . In this paper, the basic theory of vibration and noise , especially previous knowledge about engine noise are summarized ; engine noise generation mechanism and route of transmission made ??a more detailed analysis of the engine structure , works on the basis of the noise of various factors and corresponding control measures . Discuss various identification engine noise source and its principles . Last to start from the CG series engine valve train parts , to study the movement variation , especially for the the CG125 engine hot and cold machine valve gap variation of depth ; reduce motorcycle CG series engine hot and cold machine valve clearance changes improved measures to be taken and tested to verify the CG series of measures to reduce engine heat engine valve train noise to good effect .

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CLC: > Transportation > Road transport > Other road transport > Motorcycles, motorized bicycles
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