噪声与振动控制
譟聲與振動控製
조성여진동공제
NOISE AND VIBRATION CONTROL
2014年
4期
184-188
,共5页
声学%制烟车间%混响时间%声场特性%计算机模拟
聲學%製煙車間%混響時間%聲場特性%計算機模擬
성학%제연차간%혼향시간%성장특성%계산궤모의
acoustics%cigarette manufacture workshop%reverberation time%sound field characteristics%computer simulation
烟草行业正在进行绿色工房的达标改造，而声环境是考核的重要指标。对上海卷烟厂新建制烟车间包括混响时间及声场特性的声环境现状进行调研分析后，依据吸声降噪理论提出了声环境改造的措施，并从理论上半定量分析了机器设备本身对降噪效果的影响，最后利用计算机模拟软件对新建车间的噪声分布进行了预测，半定量理论分析、计算机模拟及竣工实测数据均表明对新建车间所采取的吸声降噪措施既可靠又有效。
煙草行業正在進行綠色工房的達標改造，而聲環境是攷覈的重要指標。對上海捲煙廠新建製煙車間包括混響時間及聲場特性的聲環境現狀進行調研分析後，依據吸聲降譟理論提齣瞭聲環境改造的措施，併從理論上半定量分析瞭機器設備本身對降譟效果的影響，最後利用計算機模擬軟件對新建車間的譟聲分佈進行瞭預測，半定量理論分析、計算機模擬及竣工實測數據均錶明對新建車間所採取的吸聲降譟措施既可靠又有效。
연초행업정재진행록색공방적체표개조，이성배경시고핵적중요지표。대상해권연엄신건제연차간포괄혼향시간급성장특성적성배경현상진행조연분석후，의거흡성강조이론제출료성배경개조적조시，병종이론상반정량분석료궤기설비본신대강조효과적영향，최후이용계산궤모의연건대신건차간적조성분포진행료예측，반정량이론분석、계산궤모의급준공실측수거균표명대신건차간소채취적흡성강조조시기가고우유효。
Tobacco industry is undergoing a green-workshop renovation, and quality of the acoustic environment is an important index for the green-workshop assessment. In this paper, the current acoustic environment including reverberation time and sound field characteristic in a new-built tobacco workshop of Shanghai Cigarette Factory are investigated and analyzed. Measures of improvement of acoustic environment are proposed according to the theory of noise reduction based on sound absorption. Then, a semi-quantitative theoretical analysis of the effect of machines and equipments on noise reduction is done. Finally, noise distribution of the new tobacco workshop is predicted by computer simulation. The results of the theoretical analysis and computer simulation of the acoustic environment of the new workshop show that the measures of noise reduction due to sound absorption are reliable and effective.
