at a) An electric motor with a stand has the total mass M. It is supported...
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at a) An electric motor with a stand has the total mass M. It is supported by four identical springs, each with the spring constant k. The rotor has a constant angular velocity w and is unbalanced, which corresponds to a small mass m at the distancer from the shaft. The engine runs at two different speeds. the angular velocity of the motor is w, = 100 rad/s and w, = 150 rad/s the amplitude of the permanent oscillation becomes A = 1 mm and A2 = 4 mm respectively. Determine the resonant frequency! 171 %3D M. 1--41 A2 The answer to the question is Wn 1- b) An electric motor with a stund has a mass M- 12 kg. It is supported by four identical springs, each with the spring constant k-270 kN/m and four vibration dampers, each with the damping constant c. The rotor has the angular velocity w and is unbalanced, which corresponds to a small mass m -6g (included in M) has a circular motion at the distance r 0.08 m from the axis. Determine the attenuation constant c that causes the amplitude to be A =1 mm as the angular frequency of the motor is the same as the natural angular frequency of the undamped system. mr 4k The answer to the question is C 4A VM at a) An electric motor with a stand has the total mass M. It is supported by four identical springs, each with the spring constant k. The rotor has a constant angular velocity w and is unbalanced, which corresponds to a small mass m at the distancer from the shaft. The engine runs at two different speeds. the angular velocity of the motor is w, = 100 rad/s and w, = 150 rad/s the amplitude of the permanent oscillation becomes A = 1 mm and A2 = 4 mm respectively. Determine the resonant frequency! 171 %3D M. 1--41 A2 The answer to the question is Wn 1- b) An electric motor with a stund has a mass M- 12 kg. It is supported by four identical springs, each with the spring constant k-270 kN/m and four vibration dampers, each with the damping constant c. The rotor has the angular velocity w and is unbalanced, which corresponds to a small mass m -6g (included in M) has a circular motion at the distance r 0.08 m from the axis. Determine the attenuation constant c that causes the amplitude to be A =1 mm as the angular frequency of the motor is the same as the natural angular frequency of the undamped system. mr 4k The answer to the question is C 4A VM
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Related Book For
Statistics for Business and Economics
ISBN: 978-0132930192
8th edition
Authors: Paul Newbold, William Carlson, Betty Thorne
Posted Date:
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