What is it called when the frequency of a forced vibration matches an object’s natural frequency?...
What is it called when the frequency of a forced vibration matches an object’s natural frequency?
| A. |
rarefaction |
|
| B. |
compression |
|
| C. |
blue shift |
|
| D. |
resonance |
Homework Answers
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What is it called when the frequency of a forced vibration
matches an object’s natural frequency?...
solve these questions Chapter 20 Sound Be able to define compression and rarefaction. Be able to...
solve these questions
Chapter 20 Sound Be able to define compression and rarefaction. Be able to explain the concepts of forced vibration, natural frequency, and resonance. Be able to apply the concepts of forced vibration, natural frequency, and resonance. • Be able to explain and apply the concept of beats.
4. Resonance occurs: a. when the frequency of a vibrating force exactly matches a natural frequency...
4. Resonance occurs: a. when the frequency of a vibrating force exactly matches a natural frequency of the object to which the force is applied. b. when the energy of the system is zero. c. If the force moving the spring is enough to slow down the object. d. When the current in an RC circuit goes to zero
Problem 9: What type of motion is termed a free vibration? natural, undamped (B natural, damped...
Problem 9: What type of motion is termed a free vibration? natural, undamped (B natural, damped O forced, undamped D forced, damped Correct answer is marked, Please give detailed explanation on how to arrive to the answer
For the forced-vibration responses of a TDOF system, what does it mean physically when the determ...
For the forced-vibration responses of a TDOF system, what does it mean physically when the determinant of the matrix equation becomes zero? xiv.
For the forced-vibration responses of a TDOF system, what does it mean physically when the determinant of the matrix equation becomes zero? xiv.
A seismic instrument has a natural frequency of 20 Hz and a damping ratio of 0.65. The maximum input frequency for a vibration is such that the amplitude error in the indicated displacement is less t...
A seismic instrument has a natural frequency of 20 Hz and a damping ratio of 0.65. The maximum input frequency for a vibration is such that the amplitude error in the indicated displacement is less than 5%. Calculate and select the correct value of phase shift Select one: Ф=-63° Φ = 63° Ф=-530 Ф=-6.30 Φ = 53°
A seismic instrument has a natural frequency of 20 Hz and a damping ratio of 0.65. The maximum input frequency for a vibration...
I. 20% Consider the undamped vibration absorber discussed in class. The excitation frequency is w. Re-derive...
I. 20% Consider the undamped vibration absorber discussed in class. The excitation frequency is w. Re-derive the forced response magnitudes of the main mass and the absorber mass Xa(t) FO)-Fo sin o f tx( as well as the vibration absorber design criterion ma Discuss the effect of absorber mass selection. What if the excitation frequency is equal to the original resonance frequency »,m
3. In a vibrating system, Damping limits the amplitude of vibration at resonance to a finite...
3. In a vibrating system, Damping limits the amplitude of vibration at resonance to a finite value There is no vibration if the exciting force vibrates at very high frequencies comparedto the natural frequency The system vibrates together with the exciting force at very low frequencies compared to the natural frequency All of the above are true. a. b. c. d. 4· The cheapest of composite matenals used in small craft hull construction is: a. b. c. d. Carbon fiber-...
Determine the natural frequency of vibration of the system shown in Fig. 1-1. Assume the bar...
Determine the natural frequency of vibration of the system shown in Fig. 1-1. Assume the bar AB to be rigid and weightless with c as the mid-point. k3 Fig. 1-1.
Question 3 Not yet answered Marked out of 2.00 P Flag question A seismic instrument has a natural frequency of 20 Hz and a damping ratio of 0.65. The maximum input frequency for a vibration is su...
Question 3 Not yet answered Marked out of 2.00 P Flag question A seismic instrument has a natural frequency of 20 Hz and a damping ratio of 0.65. The maximum input frequency for a vibration is such that the amplitude error in the indicated displacement is less than 5%. Calculate and select the correct value of phase shift. Select one: О Ф-630 Ф-530 О Ф -63° O p- 6.3°
Question 3 Not yet answered Marked out of 2.00 P Flag...
determine how much resonance frequency is different from the natural oscillation frequency (1kHz) when the damping...
determine how much resonance frequency is different from the natural oscillation frequency (1kHz) when the damping factor is 400/s
solve these questions
Chapter 20 Sound Be able to define compression and rarefaction. Be able to explain the concepts of forced vibration, natural frequency, and resonance. Be able to apply the concepts of forced vibration, natural frequency, and resonance. • Be able to explain and apply the concept of beats.
4. Resonance occurs: a. when the frequency of a vibrating force exactly matches a natural frequency of the object to which the force is applied. b. when the energy of the system is zero. c. If the force moving the spring is enough to slow down the object. d. When the current in an RC circuit goes to zero
Problem 9: What type of motion is termed a free vibration? natural, undamped (B natural, damped O forced, undamped D forced, damped Correct answer is marked, Please give detailed explanation on how to arrive to the answer
For the forced-vibration responses of a TDOF system, what does it mean physically when the determinant of the matrix equation becomes zero? xiv.
For the forced-vibration responses of a TDOF system, what does it mean physically when the determinant of the matrix equation becomes zero? xiv.
A seismic instrument has a natural frequency of 20 Hz and a damping ratio of 0.65. The maximum input frequency for a vibration is such that the amplitude error in the indicated displacement is less than 5%. Calculate and select the correct value of phase shift Select one: Ф=-63° Φ = 63° Ф=-530 Ф=-6.30 Φ = 53°
A seismic instrument has a natural frequency of 20 Hz and a damping ratio of 0.65. The maximum input frequency for a vibration...
I. 20% Consider the undamped vibration absorber discussed in class. The excitation frequency is w. Re-derive the forced response magnitudes of the main mass and the absorber mass Xa(t) FO)-Fo sin o f tx( as well as the vibration absorber design criterion ma Discuss the effect of absorber mass selection. What if the excitation frequency is equal to the original resonance frequency »,m
3. In a vibrating system, Damping limits the amplitude of vibration at resonance to a finite value There is no vibration if the exciting force vibrates at very high frequencies comparedto the natural frequency The system vibrates together with the exciting force at very low frequencies compared to the natural frequency All of the above are true. a. b. c. d. 4· The cheapest of composite matenals used in small craft hull construction is: a. b. c. d. Carbon fiber-...
Determine the natural frequency of vibration of the system shown in Fig. 1-1. Assume the bar AB to be rigid and weightless with c as the mid-point. k3 Fig. 1-1.
Question 3 Not yet answered Marked out of 2.00 P Flag question A seismic instrument has a natural frequency of 20 Hz and a damping ratio of 0.65. The maximum input frequency for a vibration is such that the amplitude error in the indicated displacement is less than 5%. Calculate and select the correct value of phase shift. Select one: О Ф-630 Ф-530 О Ф -63° O p- 6.3°
Question 3 Not yet answered Marked out of 2.00 P Flag...
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