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href="http://www.28fashion.com/news/jszx30f/">環(huán)保知識(shí)</a> </div> </div> <div id="jlrjvtnppp" class="content">  <div id="jlrjvtnppp" class="news_detail"> <h1 class="title">產(chǎn)生噪音的常見場(chǎng)所有哪些？</h1> <div id="jlrjvtnppp" class="info_title clearfix"> <h3 class="title_bar"> 發(fā)布日期：<span>2016-05-03 09:43</span> 來源：<span>http://www.28fashion.com</span> 點(diǎn)擊：<span><script src="http://www.28fashion.com/data/include/newshits.php?id=237"></script></span> </h3> <div id="jlrjvtnppp" class="share">  <div id="jlrjvtnppp" class="bdsharebuttonbox"> <a href="#" class="bds_more" data-cmd="more"></a> <a href="#" class="bds_qzone" data-cmd="qzone"></a> <a href="#" class="bds_tsina" data-cmd="tsina"></a> <a href="#" class="bds_tqq" data-cmd="tqq"></a> <a href="#" class="bds_renren" data-cmd="renren"></a> <a href="#" class="bds_weixin" data-cmd="weixin"></a> </div> <script> window._bd_share_config={"common":{"bdSnsKey":{},"bdText":"","bdMini":"2","bdPic":"","bdStyle":"0","bdSize":"16"},"share":{},"image":{"viewList":["qzone","tsina","tqq","renren","weixin"],"viewText":"分享到：","viewSize":"16"},"selectShare":{"bdContainerClass":null,"bdSelectMiniList":["qzone","tsina","tqq","renren","weixin"]}};with(document)0[(getElementsByTagName('head')[0]||body).appendChild(createElement('script')).src='http://bdimg.share.baidu.com/static/api/js/share.js?v=89860593.js?cdnversion='+~(-new Date()/36e5)]; </script>  </div> </div> <div id="jlrjvtnppp" class="content"><p style="text-align: center;">　　<img src="/data/upload/image/20160503/1462239818891776.jpg" title="產(chǎn)生噪音的常見場(chǎng)所有哪些？" alt="產(chǎn)生噪音的常見場(chǎng)所有哪些？" width="518" height="337" border="0" vspace="0" style="width: 518px; height: 337px;"/></p><p>　　一、振動(dòng)所產(chǎn)生</p><p>　　轉(zhuǎn)動(dòng)機(jī)械：許多機(jī)械設(shè)備的本身或某一部份零件是旋轉(zhuǎn)式的，常因組裝的損耗或軸承的缺陷而產(chǎn)生異常的振動(dòng)，進(jìn)而產(chǎn)生噪音。</p><p>　　沖擊：當(dāng)物體發(fā)生沖擊時(shí)，大量的動(dòng)能在短時(shí)間內(nèi)要轉(zhuǎn)成振動(dòng)或噪音的能量，而且頻率分布的范圍非常的廣，例如沖床、壓床、鍛造設(shè)備等，都會(huì)產(chǎn)生此類噪音。</p><p>　　共振：每個(gè)系統(tǒng)都有其自然頻率，如果激振的頻率范圍與自然頻率有所重疊，將會(huì)產(chǎn)生大振幅的振動(dòng)噪音，例如引擎、馬達(dá)等。</p><p>　　磨擦：此類噪音由于接觸面與附著面間的滑移現(xiàn)象而產(chǎn)生聲響，常見的設(shè)備有切削、研磨等。</p><p>　　二、流場(chǎng)所產(chǎn)生</p><p>　　流動(dòng)所產(chǎn)生的氣動(dòng)噪音，亂流、噴射流、氣蝕、氣切、渦流等現(xiàn)象。<a href='http://www.28fashion.com/' target='_blank' class='key_tag'><font color=#136ec2><strong>重慶噪聲治理</strong></font></a>發(fā)現(xiàn)當(dāng)空氣中以高速流經(jīng)導(dǎo)管或金屬表面時(shí)，一般空氣在導(dǎo)管中流動(dòng)碰到阻礙產(chǎn)生亂流或大而急速的壓力改變均會(huì)有噪音的產(chǎn)生。</p><p>　　三、環(huán)境噪聲</p><p>　　一般環(huán)境噪音大多來自隨機(jī)的噪音源，例如急馳而過的車輛、飛機(jī)的鳴笛、人們的喧鬧、以及周圍各式各樣的噪音來源。</p><p>　　四、燃燒產(chǎn)生</p><p>　　在燃燒過程中可能發(fā)生爆炸、排氣、以及燃燒時(shí)上升氣流影響周圍空氣的擾動(dòng)，這些現(xiàn)象均會(huì)伴隨噪音的產(chǎn)生。例如引擎、鍋爐、熔煉爐、渦輪機(jī)等這一類的燃燒設(shè)備均會(huì)產(chǎn)生這一類的噪音。</p><p>　　五、其他噪聲</p><p>　　在日常生活中，諸如室內(nèi)各項(xiàng)家庭用具均會(huì)發(fā)生聲音，如冷氣機(jī)、音響、抽油煙機(jī)、電視、空調(diào)設(shè)備，均為噪音源，另外;如學(xué)校、商場(chǎng)、公園、體育場(chǎng)等公共場(chǎng)所亦可視為噪音產(chǎn)生的場(chǎng)所。</p></div> <h3 class="tag">相關(guān)標(biāo)簽：<a href="http://www.28fashion.com/tag/%E9%87%8D%E5%BA%86%E5%BA%9F%E6%B0%B4%E6%B2%BB%E7%90%86">重慶廢水治理</a> </h3> <div id="jlrjvtnppp" class="page">上一篇：<a href="http://www.28fashion.com/news/236.html">噪音的防治管理與噪音控制</a><br />下一篇：<span><a href="http://www.28fashion.com/news/238.html">噪音達(dá)多少分貝會(huì)造成身體損害</a></span></div> </div> <div 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