Resonance occurs when a forcing function excites the machine's natural frequency, causing an excess in vibration. These excessive vibrations cause additional stress on a machine, resulting in poor reliability, premature failure, and greater cost in maintenance and parts.
the vibration can burst blood vessels. Bruising of the skin or internal organs such as concussion of the brain can be caused because of the vibration of a movement.
Harms of Harmonic Resonance
1) The series or parallel resonance will generate the voltage, which is several times higher than power source. The voltage can be applied on the equipment in the circuit, such as the capacitor, current transformer and fuse etc, causing damage to high voltage electrical equipment insulation.
To avoid resonance, the forcing frequency applied to the structure should not be at or near a natural frequency. If the forcing frequency cannot be changed, then the natural frequency of the structure needs to be modified. This can only be done by altering the mass or stiffness (see Equation 1).
Conclusion: The resonance frequency is useful
In acoustics, a higher amplitude of sound waves means a higher sound pressure and thus a higher volume. Resonant frequencies are generally undesirable for loudspeakers.
Resonance disorders result from too much or too little nasal and/or oral sound energy in the speech signal. They can result from structural or functional (e.g., neurogenic) causes and occasionally are due to mislearning (e.g., articulation errors that can lead to the perception of a resonance disorder).
Definition. Resonance Effect – The polarity induced in a molecule by the interaction of a lone pair of electrons with a pi bond or the interaction of two pi bonds in nearby atoms is known as the resonance effect.
When the impedances or admittances of circuit elements cancel each other such that the current becomes maximum, electrical resonance is said to occur. It occurs in an electric circuit at a specific resonant frequency. The best example of electrical resonance is turning on a radio.
The resonance is the oscillation (up-and-down or back-and-forth motion) caused by a seismic wave. During an earthquake, buildings oscillate. If the frequency of this oscillation is close to the natural frequency of the building, resonance may cause severe damage.
A resonance is a dynamical state during which neuronal firings across a brain network are amplified and synchronized when they interact via reciprocal excitatory feedback signals during a matching process that occurs between bottom-up and top-down pathways.
A playground swing is one of the familiar examples of resonance. When we push the swing, it starts moving forward and backwards. If a series of regular pushes are given to the swing, its motion can be built. The person who is pushing the string has to match the timing of the swing.
Mechanical resonance can produce vibrations strong enough to destroy the object in which they occur. For example, soldiers marching over a bridge can set up extreme vibrations at the bridge's natural frequency and shake it apart. For this reason soldiers break step to cross a bridge.
A final good example of unwanted resonance is found in loudspeaker systems. If a loudspeaker system has a resonant frequency, it will reproduce sounds at the resonant frequency much more efficiently than those at other frequencies.
Resonance for sound works the same as it does for light. When one object is vibrating at the resonant frequency of a second object, then the first object causes the second one to vibrate with a high amplitude.
Even resonance produced by sound waves can cause a material to break, such as when a glass goblet is shattered by sound.
The ideas of order, security, family, religion and country had the same resonance for them as for Michael. His voice had lost its resonance; it was tense and strained. The ear has a set of filaments to vibrate in resonance with incoming sound-waves.
In its simplest form, resonance occurs when an object experiences an oscillating force that's close to one of its “natural” frequencies, at which it easily oscillates.
It is a state when you feel an abundance of energy flowing free from within, towards attaining fulfilment. We have learnt the concept of resonance in our physics classes at school.
By testing the response of the human body on a vibrating platform, many researchers found the human whole-body fundamental resonant frequency to be around 5 Hz. However, in recent years, an indirect method has been prosed which appears to increase the resonant frequency to approximately 10 Hz.
The overall range of resonant frequencies was found to be from 9 to 16 Hz and independent of mass, height and mass to height ratio.
All sound resonances are due to constructive and destructive interference. Only the resonant frequencies interfere constructively to form standing waves, while others interfere destructively and are absent.
There is no violation of energy conservation during resonance: when you start to pour energy at a frequency in the proximity of natural frequency, you are increasing the amplitude of the vibration but then it gets dissipated by friction; when you're at natural frequency, you start to pour energy at the rate at which ...
This is called antiresonance, which has the opposite effect of resonance.