noise attenuation measure 中文意思是什麼
noise attenuation measure
解釋
減低噪音措施- noise : n 1 聲音，聲響。2 叫喊；嘈雜聲，噪音；喧鬧聲；吵鬧，騷動，騷擾。3 〈古語〉謠言，風聲。4 〈美國〉...
- attenuation : n. 1. 變薄，變細。2. 減少，減弱。3. 稀釋。4. 【物理學】衰減。
- measure : n 1 尺寸，尺度，量，分量；【數學】測度；度量法；計量單位。2 量具，量器。3 （衡量）標準，準繩；程...
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This paper is based on the theory of environmental science, systematology and noise control engineering. noise control system and comprehensive harness of fan room have been researched. by the investigate, and measure of fan room noise. sound production principle, acoustics characteristic and the law of attenuation propagation have been analyzed. thus, the sound field model of fan roo has been put for put forward ward
本文以環境科學、系統科學和噪聲控制學為理論基礎，對風機房噪聲控制系統及其綜合治理進行研究，通過對風機房噪聲污染調查監測，分析其發生機理、聲學特性和傳播過程衰減規律。 -
The structural optimization based on noise attenuation is studied, in which the thickness of each link is taken as the design variable, and the weighting sum of structural mass and measure of the structural acoustic performance is taken as the synthesis performance index
選取機構桿件厚度為設計變量，以機構質量和聲輻射性能量度的加權和為目標函數，應用改進了的變尺度優化演算法對優化問題進行了求解。 -
Based on the conclusion of wave number analysis, a new dynamic equation taking the measure of structural acoustic performance is obtained by a set of transformation, which is much convenient for us to discuss the noise attenuation
並依此對機構動態方程進行了改造，得出了一個以機構聲輻射性能的量度為變量的新的動態方程，為後面機構聲輻射控制研究提供了方便。
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