Examples of *** vibration phenomenon in real life applications are as follows:
1, audio equipment: *** vibration in audio equipment plays a key role. Speakers in audio equipment produce sound through vibration. This vibration is driven by changes in the magnetic field of an electromagnet. When the speaker plays audio, the frequency of the audio signal is the same as the intrinsic frequency of the speaker, the speaker will vibrate at a greater amplitude, producing a louder sound. This is the application of *** vibration in audio equipment.
2, vehicle shock absorption: the vehicle shock absorption system utilizes the *** vibration principle. Vehicles in the driving process, due to the unevenness of the road surface, will trigger the vibration of the body. This vibration can be absorbed and reduced through the damping system *** vibration, thus improving ride comfort. The *** vibration absorption ability of the damping system depends on its damping coefficient, the larger the damping coefficient, the stronger the *** vibration absorption ability.
3, magnetic *** vibration imaging: magnetic *** vibration imaging (MRI) is the use of *** vibration phenomenon of a medical diagnostic technology. In magnetic *** vibration imaging, the nucleus of the atom being detected undergoes *** vibration in a magnetic field, generating signals. By processing and analyzing these signals, an image of the detected tissue can be obtained. Magnetic **** vibration imaging is widely used in medical diagnosis because of its high resolution and non-invasiveness.
Conditions for generating *** vibration:
1, the intrinsic frequency of the system: *** vibration generated by the premise that the system has a certain intrinsic frequency. When the frequency of external excitation and the intrinsic frequency of the system is the same, the vibration amplitude of the system will suddenly increase, resulting in *** vibration. Therefore, the intrinsic frequency of the system is the key factor in the generation of *** vibration.
2, external excitation: *** vibration requires the presence of external excitation. This excitation can be a periodic force or signal whose frequency matches the intrinsic frequency of the system. When the frequency of the external excitation is similar to the intrinsic frequency of the system, the system will vibrate with a larger amplitude, resulting in *** vibration.
3, the nonlinearity of the system: *** vibration generation also requires the nonlinear nature of the system. If the system is linear, then when the frequency of the external excitation is equal to the system's intrinsic frequency, the system will vibrate with the same amplitude, and will not produce *** vibration. However, real systems often have nonlinear properties, and when the strength of the external excitation reaches a certain value, the vibration amplitude of the system will suddenly increase, producing *** vibration.