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Mechanical Vibrations

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2
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Define whirling speed. Derive the equation for the critical speed of a light shaft with a single disc without damping
mechanical vibrations updated 4.0 years ago by phenjoisilab • 0
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754
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Use Lagranges equations to derive the differential equations governing the motion of the system of Fig.1 using $\theta1, \theta2$ and x as generalized coordinates
mechanical vibrations updated 4.0 years ago by phenjoisilab • 0
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How do you find the response of a viscously damped system under rotating unbalanced.
mechanical vibrations updated 4.0 years ago by phenjoisilab • 0
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find the natural frequency by Dunkerleys method
mechanical vibrations updated 4.0 years ago by phenjoisilab • 0
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635
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Write the differential equations in matrix form
mechanical vibrations updated 4.0 years ago by phenjoisilab • 0
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520
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Determine the equivalent system parameters for the following figure, taking X as the generalized coordinates
mechanical vibrations updated 4.0 years ago by phenjoisilab • 0
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660
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What is amplitude of motion at the end of first cycle?
mechanical vibrations updated 4.0 years ago by phenjoisilab • 0
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Find the value of damping factor of oil.
mechanical vibrations updated 4.0 years ago by phenjoisilab • 0
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In what ratio will the amplitude of vibration be reduced after 5 cycles.
mechanical vibrations updated 4.0 years ago by phenjoisilab • 0
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439
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Use Lagranges equations to find the frequency of the system shown in figure.
mechanical vibrations updated 4.0 years ago by phenjoisilab • 0
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Determine the natural frequency of the automobile in the vertical direction by assuming damping to be negligible.
mechanical vibrations updated 4.0 years ago by phenjoisilab • 0
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With a neat diagram explain working principle of a vibrometer.
mechanical vibrations updated 4.0 years ago by phenjoisilab • 0
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find: a. The masses of A and D. b. The distance between planes C and D c. The angular position of mass D.
mechanical vibrations updated 4.0 years ago by phenjoisilab • 0
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Examine the engine for the balance of primary and secondary forces and couples.
mechanical vibrations updated 4.0 years ago by phenjoisilab • 0
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Determine the out of balance primary and secondary forces and couples on the engine taking a plane midway between the cylinder 3 and 4 as a reference plane
mechanical vibrations updated 4.0 years ago by phenjoisilab • 0
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768
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Explain static and dynamic balancing
mechanical vibrations updated 4.0 years ago by phenjoisilab • 0
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Compute displacement, velocity & acceleration of machine. Damping factor of seismic instrument is neglected.
mechanical vibrations updated 4.0 years ago by phenjoisilab • 0
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Explain why only a part of the primary unbalanced force due -O the reciprocating masses is balanced by revolving masses
mechanical vibrations updated 4.0 years ago by phenjoisilab • 0
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A commercial type vibration pick up has a natural frequency of 5.75 Hz and a damping factor of 0.65, what is lowest frequency beyond which the amplitude can be measured within 2% error
mechanical vibrations updated 4.0 years ago by phenjoisilab • 0
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1.5k
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Determine the spring stiffness and damping constant.
mechanical vibrations updated 4.0 years ago by phenjoisilab • 0
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902
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What should be undamped natural frequency of the system so that the measurement error never exceeds 2% ?
mechanical vibrations updated 4.0 years ago by phenjoisilab • 0
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A vibration pickup has a natural frequency of 5 Hz and a damping ratio of $\zeta=0.5$ Find the lowest frequency that can be measured with a 1 percent error.
mechanical vibrations updated 4.0 years ago by phenjoisilab • 0
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952
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Find the damping constant (c) and spring stiffness (k) of the accelerometer
mechanical vibrations updated 4.0 years ago by phenjoisilab • 0
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780
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Determine the maximum displacement, maximum velocity and maximum acceleration.
mechanical vibrations updated 4.0 years ago by phenjoisilab • 0
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would you expect the complete system be periodic or aperiodic?
mechanical vibrations updated 4.1 years ago by krithikkm200 • 10
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