【请教】吸振与隔振的区别
小弟菜鸟一枚，向各位大神请教~absorber是吸振？isolator是隔振？damper是阻尼器？
吸振与隔振的区别？
我以为,隔振是隔离外来的振动,比如精密机床的隔振基础,仪器的减振安装,要隔离外来的振动干扰;
吸振是吸收减小物体自身的振动,比如用阻尼器,动力吸振器等. {:{39}:} 比如机械振动台的气囊就可以起到隔振的作用，振动台面在气囊上振动，但安装气囊的台体部分却是振动很微小了，这样气囊就在两个物体间把振动隔离了。 本帖最后由 wdhd 于 2016-8-19 09:31 编辑
当初曾google过,忘记从那裡整过来的
What is the difference between a vibration isolator and a vibration damper?
A good vibration isolator lowers the natural frequency of a system to below the excitation (or disturbing) frequency. Keeping these two frequencies "out of sync" greatly reduces the problems of vibration. A good vibration damper takes mechanical energy out of the system. Properly designed metal springs and rubber mounts can be good isolators but have almost no damping capability. Oil dampers (dashpots) have good damping capability but no isolation capability.
Foam products can be good isolators but have limited life.
What is the difference between a vibration absorber and a vibration isolator?
Vibration absorber is a spring mass system attached to the main vibratory system to absorb the vibrations whereas vibration isolators are material like cork , rubber, felt, pad etc. which are used to isolate machines from its foundation and support. These vibration isolation absorb the shocks forces set up in the machinery and prevents the damage of foundations and supports.
h主任说的是
个人以为基本上都是隔振(隔离振动),只是要隔离外来的振动或物体自身的振动,所用的手段不同,所以使用不同的词!
重点应该注意振动源及路径
ChaChing 发表于 2012-11-10 23:47 static/image/common/back.gif
当初曾google过,忘记从那裡整过来的
h主任说的是
十分感谢~ 吸振主要是能量的传递，将主件的振动能量通过阻尼件或通过动力吸振原理将能量传递给附件 隔振是利用外界的减振部件使振动量级衰减·吸振是不是与自身的材料有关呢？ 隔振就是在主动振动和被动物体之间选取一个合理的点，使主动和被动之间的振动能量传递尽量小。吸振就是采用各种吸振材料（橡胶，硅油，电磁等）来衰减主动振动传递过来的能量。我觉得二者还是有很大区别的。一个是在系统内部选支点的问题，选取的支点不同会影响传递的振动的大小，另一个是采取减振工具来消耗传递来的振动，二者减振方法的侧重点不同，但目的是一致的。 吸振也可以是能量的转移。 动力吸振器是设计时,根据主系统的M,C,K来设计一个小的M,C,K.小的M,C,K就是吸振器的参数
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