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知名的力学环境试验设备及解决方案提供商

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振动试验必知的27个常识

文章来源:苏州市利邦振动科技有限公司公司网址:http://agrmj.com发表时间:2018-6-21
核心提示:振动试验的目的是模拟一连串振动现象,测试产品在寿命周期中,是否能承受运输或使用过程的振动环境的考验,也能确定产品设计和功能的要求标准。振动试验的精义在于确认产品的可靠性及提前将不良品在出厂前筛检出来,并评估其不良品的失效分析使其成为高水平,高可靠性的产品。

1、什么是振动

ZHENDONGSHIJIXIEXITONGZHONGYUNDONGLIANG(WEIYI,SUDUHEJIASUDU)DEZHENDANGXIANXIANG。

2、振动实验的目的

ZHENDONGSHIYANDEMUDESHIMONIYILIANCHUANZHENDONGXIANXIANG,CESHICHANPINZAISHOUMINGZHOUQIZHONG,SHIFOUNENGCHENGSHOUYUNSHUHUOSHIYONGGUOCHENGDEZHENDONGHUANJINGDEKAOYAN,YENENGQUEDINGCHANPINSHEJIHEGONGNENGDEYAOQIUBIAOZHUN。ZHENDONGSHIYANDEJINGYIZAIYUQUERENCHANPINDEKEKAOXINGJITIQIANJIANGBULIANGPINZAICHUCHANGQIANSHAIJIANCHULAI,BINGPINGGUQIBULIANGPINDESHIXIAOFENXISHIQICHENGWEIGAOSHUIPING,GAOKEKAOXINGDECHANPIN。

3、振动分几种

ZHENDONGFENQUEDINGXINGZHENDONGHESUIJIZHENDONGLIANGZHONG。

4、什么是正弦振动

NENGYONGYIXIANGZHENGXIANHANSHUBIAODASHIBIAODAQIYUNDONGGUILVDEZHOUQIYUNDONG。

LIRUFANSHIXUANZHUAN、MAIDONG、ZHENDANG(ZAICHUANBO、FEIJI、CHELIANG、KONGJIANFEIXINGQISHANGSUOCHUXIANDE)SUOCHANSHENGDEZHENDONGJUNSHIZHENGXIANZHENDONG。

5、正弦振动的目的

ZHENGXIANZHENDONGSHIYANDEMUDESHIZAISHIYANSHINEIMONIDIANGONGDIANZICHANPINZAIYUNSHU、CHUCUN、SHIYONGGUOCHENGZHONGSUOZAOSHOUDEZHENDONGJIQIYINGXIANG,BINGKAOHEQISHIYINGXING。

6、正弦振动的试验条件

ZHENGXIANZHENDONGSHIYANDEYANTIAOJIAN(YANKUDENGJI)YOUZHENDONGPINLVFANWEI、ZHENDONGLIANG、SHIYANCHIXUSHIJIAN(CISHU)GONGTONGQUEDING。

7、什么是振动频率范围

ZHENDONGPINLVFANWEIBIAOSHIZHENDONGSHIYANYOUMOUGEPINLVDIANDAOMOUGEPINLVDIANJINXINGWANGFUSAOPIN。

江西11选5走势图 LIRU:SHIYANPINLVFANWEI5-50Hz,BIAOSHIYOU5HzDAO50HzJINXINGWANGFUSAOPIN。

振动试验必知的27个常识

8、什么是频率

PINLV:MEIMIAOZHENDONGDECISHU.DANWEI:Hz。

9、什么是振动量

江西11选5走势图 ZHENDONGLIANG:TONGCHANGTONGGUOJIASUDU、SUDUHEWEIYILAIBIAOSHI。

JIASUDU:BIAOSHISUDUDUISHIJIANDAOSHUDESHILIANG。JIASUDUDANWEI:gHUOm/s2

江西11选5走势图 SUDU:ZAISHUZHISHANGDENGYUDANWEISHIJIANNEITONGGUODELUCHENG

WEIYI:BIAOSHIWUTIXIANGDUIYUMOUCANKAOXIWEIZHIBIANHUADESHILIANG。WEIYIDANWEI:mm

10、什么是试验持续时间

江西11选5走势图 ZHENDONGSHIJIANBIAOSHIZHENGGESHIYANSUOXUSHIJIAN,

江西11选5走势图 CISHUBIAOSHIZHENGGESHIYANSUOXUSAOPINXUNHUANCISHU。

11、什么是扫频循环

SAOPINXUNHUAN:ZAIGUIDINGDEPINLVFANWEINEIWANGFANSAOMIAOYICI:

江西11选5走势图 LIRU:5Hz→50Hz→5Hz,CONG5HzSAOMIAODAO50HzHOUZAISAOMIAODAO5Hz。

12、什么是重力加速度

ZHONGLIJIASUDU:WUTIZAIDIQIUBIAOMIANYOUYUZHONGLIZUOYONGSUOCHANSHENGDEJIASUDU。

1gn=10m/s2(GB/T 2422-1995 DIANGONGDIANZICHANPINHUANJINGSHIYAN SHUYU)

13、扫描方式分几种

XIANXINGSAOMIAO:SHIXIANXINGDE,JIDANWEISHIJIANSAOGUODUOSHAOHEZI,DANWEISHIHz/sHUOHz/min,ZHEIZHONGSAOMIAOYONGYUXIZHAOGONGZHENPINLVDESHIYAN。

DUISHUSAOMIAO:PINLVBIANHUAANDUISHUBIANHUA,SAOMIAOLVKEYISHIoct/min ,DUISHUSAOMIAODEYISISHIXIANGTONGDESHIJIANSAOGUODEPINLVBEIPINCHENGSHUSHIXIANGTONGDE。

14、什么是扫描速度

江西11选5走势图 SAOMIAOSUDU(sweep speed):ZHICONGZUIDIPINLVSAOMIAODAOZUIGAOPINLVDESUDU。YOUYIXIAJIZHONG:

1)oct/min:DUOSHAOBEIPINCHENGMEIFENZHONG。

LI:1oct/min,5HzDAO10HzXU1FENZHONG,10HzDAO20HzXU1FENZHONG。

2)min/sweep:DUOSHAOFENZHONGMEICISAOPIN。

LI:5-500Hz,SAOMIAOSUDU:1FENZHONG/sweep,BIAOSHICONG5HzDAO500HzXU1FENZHONG。

江西11选5走势图 3)Hz/s:DUOSHAOHzMEIMIAO。

LI:5-10Hz,SAOMIAOSUDU:1Hz/s,BIAOSHI5HzDAO6HzXU1MIAO,6HzDAO7HzXU1MIAO。

15、振动试验中有几个方向

CHUYOUGUANGUIFANLINGYOUGUIDINGWAI,YINGZAICHANPINDESANGEHUXIANGCHUIZHIFANGXIANGSHANGJINXINGZHENDONGSHIYAN。

YIBANDINGYICHANPINZHANGBIANWEIXZHOUXIANG,DUANBIANWEIYZHOUXIANG,CHANPINZHENGCHANGBAIFANGSHANGXIAWEIZZHOUXIANG。

16、什么是交越频率

江西11选5走势图 JIAOYUEPINLV:ZAIZHENDONGSHIYANZHONGYOUYIZHONGZHENDONGTEXINGLIANGBIANWEILINGYIZHONGZHENDONGTEXINGLIANGDEPINLV。RUJIAOYUEPINLVYOUDENGWEIYI——PINLVGUANXIBIANWEIDENGJIASUDU——PINLVGUANXISHIDEPINLV。

17、为什么要共振搜寻

江西11选5走势图 YIBANDAICEWUSHANGYOUGEZHONGLINGZUJIAN,ERMEIYIGEBUTONGDELINGZUJIAN,JIEYOUQIBUTONGDEGONGZHENPINLV,TONGSHIHUIYINXINGZHUANG、ZHONGLIANG、GUDINGFANGSHIBUTONGERZAIZHENDONGFASHENGSHICHANSHENGBUTONGDEGONGZHENPINLVJIFANGDABEILV,YINCIXUDUITEDINGLINGZUJIANSOUXUNTADEGONGZHENTEXING,ZAIYIQITEXINGZHIXINGGONGZHENDIANDEJIAZHENSHIYAN。

18、什么是共振频率

GONGZHENPINLV:CHANPINCHUXIANGONGZHENDEPINLV。

19、什么是定频振动

江西11选5走势图 DINGPINZHENDONGSHIZHIZAIGUIDINGDEGUDINGPINLVDIANSHANGJINXINGGEZHONGZHENDONGCANSHUBUTONGLIANGJIDESHIYAN。

20、定频振动主要用于哪些方面

1)NAIGONGZHENPINLVZHENDONG:ZAICHANPINZHENDONGPINXIANGJIANCHASHIFAXIANDEMINGXIANGONGZHENPINLVDIANSHANG,SHIJIAGUIDINGZHENDONGCANSHUZHENFUDEZHENDONG,YIKAOHECHANPINNAIGONGZHENZHENDONGDENENGLI。

2)NAIYUDINGPINLVZHENDONG:ZAIYIZHIDECHANPINSHIYONGHUANJINGTIAOJIANZHENDONGPINLVSHI,KECAIYONGNAIYUDINGPINLVDEZHENDONGSHIYAN。QIMUDEHAISHIWEIKAOHECHANPINZAIYUDINGWEIXIANPINLVXIACHENGSHOUZHENDONGDENENGLI。

21、什么是临界频率

江西11选5走势图 LINJIEPINLV:YOUYUZHENDONGDAOZHICHANPINDEXINGNENGYICHANGHUOLIEHUA,HUOCHANSHENGJIXIEGONGZHENHEQITAXIANGYINGXIAOYINGRUZHENZHANDEPINLV。

22、什么是随机振动

江西11选5走势图 DUIWEILAIRENHEYIGEJIDINGDESHIKE,QISHUNSHIZHIBUNENGYUXIANQUEDINGDEZHENDONG。ZAIYIBANDEYUNSHUHUANJINGZHONG,DUIYUYUNSONGZHONGJIAOTONGGONGJUSUOCHANSHENGDEZHENDONGHUANJINGSHISHUYUSUIJIZHENDONG,JISHIZAITONGYISHIJIANNEI,MEIGEBUTONGDEPINLVXIAJUNYOUBUTONGDEZHENDONGLIANG,ZAIZHIXINGSUIJIBOZHENDONGCESHISHI,YOUYUTONGSHIJIANBUTONGPINLVJIEYOUZHENDONGLIANGZHI。

23、什么是加速度谱密度

BIAOSHISUIJIXINHAODEGEGEPINLVFENLIANGSUOBAODEJIASUDUFANGJUNZHIZAIPINYUSHANGSHIZENYANGFENBUDE。TONGCHANGYONGASDBIAOSHI,DANWEI:m2/s3HUOSHI(m/s2)2/Hz。

24、什么是功率谱密度

表示随机信号的各个频率分量所包的功率在频域上是怎样分布的。通常用PSD表示,单位:g2/Hz。

JIASUDUPUMIDUYUGONGLVPUMIDUDEHUANSUAN?

1 g2/Hz=(9.8 m/s2)2=96.04 m2/s3

25、正弦振动标准有哪些

GB/T 2423.10-2008 DIANGONGDIANZICHANPINHUANJINGSHIYAN DI2BUFEN: SHIYANFANGFA SHIYANFc: ZHENDONG(ZHENGXIAN)

IEC 60068-2-6-2007 JIBENHUANJINGSHIYANGUICHENG.DI2BUFEN:SHIYAN.DI6JIE:SHIYANFc:ZHENDONG(ZHENGXIANBO)

ISO 8318:2000 BAOZHUANG.MANZHUANGDEYUNSHUBAOZHUANGHEDANYUANHUOWU.CAIYONGKEBIANPINDEZHENGXIANZHENDONGSHIYAN

江西11选5走势图 GB/T 4857.10-2005 BAOZHUANG YUNSHUBAOZHUANGJIANJIBENSHIYAN DI10BUFEN:ZHENGXIANBIANPINZHENDONGSHIYANFANGFA

26、随机振动标准有哪些

GB/T 2423.56-2006 DIANGONGDIANZICHANPINHUANJINGSHIYAN DI2BUFEN:SHIYANFANGFA SHIYANFh:KUANDAISUIJIZHENDONG(SHUZIKONGZHI)HEDAOZE

IEC 60068-2-64-2008 JIBENHUANJINGSHIYANGUICHENG.DI2-64BUFEN:SHIYAN.SHIYANFh:ZHENDONG、KUANDAISUIJICHOUYANG

江西11选5走势图 ASTM D4728-2006 HAIYUNJIZHUANGXIANGSUIJIZHENDONGJIANCEDEBIAOZHUNSHIYANFANGFA

GB/T 4857.23-2003 BAOZHUANG YUNSHUBAOZHUANGJIAN SUIJIZHENDONGSHIYANFANGFA

27、什么是方根均值

ZAIf1HEf2QUJIANNEIDANZHIHANSHUDEFANGJUNGENZHI,SHIZAIGAIQUJIANNEIDEHANSHUZHIDEPINGFANGDEPINGJUNZHIDEPINGFANGGENZHI。TONGCHANGYONGrmsBIAOSHI。

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