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发表于 24-3-2005 11:10 PM
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0hmyg0d 于 21-3-2005 04:22 PM 说 :
请问。。什么是共振。。?
可以举例吗。。?
It's difficult to understand resonance because we refuse to believe that every object has its own frequency (ie. natural frequency) and will vibrate on its own if an external force applies to it. But this force must vibrate at a frequency that matches the object's natural frequency. When this happens, the force and the object vibrates in the same frequency. This phenomeon is called 共振 (resonance). The frequency is called resonance frequency.
An example can be found here
http://www.intuitor.com/resonance/index.html |
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发表于 27-3-2005 01:34 AM
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每样东西都有它自己的频率。。
但外来的频率和它的频率一样时。。
就会产生共振。。
就好像桥。。
曾经发生过的事情。。
士兵操步经过一座桥。。
由于士兵的步伐一致。。
和桥产生的共振。。
那桥就越摇越厉害。。
结果断了 |
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