华南某市航空发动机组试车车间噪声控制设计.doc
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华南某市航空发动机组试车车间噪声控制设计,本文共22页，1.4万余字，是一篇不错的参考资料摘要：设计题目为华南某市航空发动机组试车间噪声控制。发动机组在运行噪声主要为机械性噪声和涡汽流噪声，属中高频噪声。发动机组总a计权声压级为：121.5 db(a)，要求降噪治理后，操作室声压级 ≤65 db(a)。噪声控制措施：操作室墙面满铺30 mm厚铝穿孔吸声板，10...
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本文共22页，1.4万余字，是一篇不错的参考资料
摘要：设计题目为华南某市航空发动机组试车间噪声控制。发动机组在运行噪声主要为机械性噪声和涡汽流噪声，属中高频噪声。发动机组总A计权声压级为：121.5 dB(A)，要求降噪治理后，操作室声压级 ≤65 dB(A)。噪声控制措施：操作室墙面满铺30 mm厚铝穿孔吸声板，100 mm安装后空腔；天花满铺30 mm厚铝穿孔吸声板，200 mm安装后空腔门为隔声门。试车间墙面满铺25 mm厚不锈钢穿孔吸声板，50 mm安装后空腔；采用声闸双重隔声门，尺寸分别为2.4×1.64 m、2.149×1.04 m；双层3×8 mm厚防弹玻璃隔声窗，50 mm空腔；进风口选用阻性消声器，尺寸为5×3×2 m，消声片为150 mm厚不锈钢护面。治理后，操作室总声压级由121.5 dB（A）降至58.25 dB（A）。
关键词：噪声控制 ；穿孔吸声板 ；隔声门 ；阻性消声器
Noise Control Design of the Aero Motor Shafts Test Workshop in the South China
Abstract:Design subect is the noise control design of the aero motor shafts test workshop in the South China . The noises of engine group are mainly mechanical noises and vortex air flow noises when operating, belonging to the low and high frequency noises. The total weighted sound pressure level of engine group is 121.5 dB(A). And it requires that sound pressure level is ≤65 dB(A) in operating room after noise control. The measures of noise control: the wall of operating room is completely paved with 30mm thickness aluminum perforated acoustic panel, 100mm cavity; the ceiling is completely paved with 30mm thickness aluminum perforated acoustic panel, and 200mm cavity door is used as the sound insulation door. And the wall of test workshop is completely paved with 25mm thickness stainless steel perforated acoustic panel, 50mm cavity; using the sound lock double sound insulation door, the sizes are 2.4×1.64 m、2.149×1.04 m respectively; Double layer 3×8 mm thickness bulletproof glass sound insulation window, 50mm cavity; air inlet uses dissipative muffler, the size is 5×3×2 m, sound splitter is 150 mm thickness stainless steel protective facing. After noise control, the total sound pressure level of operating room is reduced from 121.5 dB（A）to 58.25 dB（A）.
Key worlds: aero motor shafts；noise control；perforation acoustic board；bulletproof doors； dissipative muffler
参考文献
[1] 洪宗辉主编.环境噪声控制工程 [M].北京：高等教育出版社，2005.
[2] 马大猷.噪声与振动控制手册 [M].北京：机械工业出版社,2002.9.
[3] GBHG2008-LH-387-85,工厂企业噪声控制设计规范 [S].
[4] GBZ 1-2002,工业企业设计卫生标准 [S].
[5] GB12348-1990,工业企业厂界噪声标准 [S].
[6] 工业企业噪声卫生标准（79年试行草案）[S].
[7] 中国建筑科学研究院建筑物理研究所主编.建筑声学设计手册 [M].北京：中国建筑工业出版社,1987.07.
[8] HBHG2008-LH-311-98,航空发动机试车台设计规程 [S].
[9] GB/T 50001-2001，房屋建筑制图统一标准 [S].
[10] GB/T 50105-2001,建筑制图标准 [S].
[11] 罗钦平.广州新静界消音材料有限公司产品介绍 [DB/OL]
摘要：设计题目为华南某市航空发动机组试车间噪声控制。发动机组在运行噪声主要为机械性噪声和涡汽流噪声，属中高频噪声。发动机组总A计权声压级为：121.5 dB(A)，要求降噪治理后，操作室声压级 ≤65 dB(A)。噪声控制措施：操作室墙面满铺30 mm厚铝穿孔吸声板，100 mm安装后空腔；天花满铺30 mm厚铝穿孔吸声板，200 mm安装后空腔门为隔声门。试车间墙面满铺25 mm厚不锈钢穿孔吸声板，50 mm安装后空腔；采用声闸双重隔声门，尺寸分别为2.4×1.64 m、2.149×1.04 m；双层3×8 mm厚防弹玻璃隔声窗，50 mm空腔；进风口选用阻性消声器，尺寸为5×3×2 m，消声片为150 mm厚不锈钢护面。治理后，操作室总声压级由121.5 dB（A）降至58.25 dB（A）。
关键词：噪声控制 ；穿孔吸声板 ；隔声门 ；阻性消声器
Noise Control Design of the Aero Motor Shafts Test Workshop in the South China
Abstract:Design subect is the noise control design of the aero motor shafts test workshop in the South China . The noises of engine group are mainly mechanical noises and vortex air flow noises when operating, belonging to the low and high frequency noises. The total weighted sound pressure level of engine group is 121.5 dB(A). And it requires that sound pressure level is ≤65 dB(A) in operating room after noise control. The measures of noise control: the wall of operating room is completely paved with 30mm thickness aluminum perforated acoustic panel, 100mm cavity; the ceiling is completely paved with 30mm thickness aluminum perforated acoustic panel, and 200mm cavity door is used as the sound insulation door. And the wall of test workshop is completely paved with 25mm thickness stainless steel perforated acoustic panel, 50mm cavity; using the sound lock double sound insulation door, the sizes are 2.4×1.64 m、2.149×1.04 m respectively; Double layer 3×8 mm thickness bulletproof glass sound insulation window, 50mm cavity; air inlet uses dissipative muffler, the size is 5×3×2 m, sound splitter is 150 mm thickness stainless steel protective facing. After noise control, the total sound pressure level of operating room is reduced from 121.5 dB（A）to 58.25 dB（A）.
Key worlds: aero motor shafts；noise control；perforation acoustic board；bulletproof doors； dissipative muffler
参考文献
[1] 洪宗辉主编.环境噪声控制工程 [M].北京：高等教育出版社，2005.
[2] 马大猷.噪声与振动控制手册 [M].北京：机械工业出版社,2002.9.
[3] GBHG2008-LH-387-85,工厂企业噪声控制设计规范 [S].
[4] GBZ 1-2002,工业企业设计卫生标准 [S].
[5] GB12348-1990,工业企业厂界噪声标准 [S].
[6] 工业企业噪声卫生标准（79年试行草案）[S].
[7] 中国建筑科学研究院建筑物理研究所主编.建筑声学设计手册 [M].北京：中国建筑工业出版社,1987.07.
[8] HBHG2008-LH-311-98,航空发动机试车台设计规程 [S].
[9] GB/T 50001-2001，房屋建筑制图统一标准 [S].
[10] GB/T 50105-2001,建筑制图标准 [S].
[11] 罗钦平.广州新静界消音材料有限公司产品介绍 [DB/OL]
