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Q-3 (25 pts) An industrial machine of total mass M-600 kg is supported on springs with a static d...
QUESTION 2 Consider an electrical motor with mass M = 901.8129 kg located at the middle...
QUESTION 2
Consider an electrical motor with mass M = 901.8129 kg
located at the middle of pinned-pinned beam, as shown in the figure
below. Assume that the Young’s modulus of the beam E =
8.5470x1010 Pa, moment of inertia I =
8.3375x104 mm4 , length of the beam
L = 0.2859 m and zero initial conditions. If there is an
unbalance mass of m0 = 2.3714 kg in the
rotating part of the motor, eccentricity is e = 4.1473...
machine will be......m plz make sure while answering 11. A machine of 100 kg mass has...
machine will be......m
plz make sure while answering
11. A machine of 100 kg mass has 20 kg rotor with 0.5 mm eccentricity. The mounting springs have stiffness 85 kN/m and damping is negligible. If the operating speed is 20T rad/s and the unit is constrained to move yertically, the dynamic amplitude of the
(20%) Problem 3 An industrial machine has a mass of 430 kg and operates at a speed of 1500 rpm. It appears it has a rot...
(20%) Problem 3 An industrial machine has a mass of 430 kg and operates at a speed of 1500 rpm. It appears it has a rotating unbalance of moe-0.8 kg.m. A structural engineer suggested that the maximum transmitted force to the floor is 10000 N. The only isolation available are units, each of 7 x 106 N/m stiffness and a 0.1 damping ratio. a. What is the maximum allowable transmissibility of the force due to the rotating mass to the...
A 100 kg machine is rotating at 300 rpm and supported on two layers of rubber...
A 100 kg machine is rotating at 300 rpm and supported on two layers of rubber pads connected in series. Each layer has an equivalent stiffness of 80 KN/m. The machine has an unbalanced rotating element of 0.025 kg.m. The velocity amplitude at resonance is found to be 5 mm/sec. 1. Generally, deduce the equation of motion showing clearly the free body diagram. [30 marks] 2. Derive the particular solution and its velocity. [20 marks 3. Using the data mentioned...
QUESTION 2
Consider an electrical motor with mass M = 901.8129 kg
located at the middle of pinned-pinned beam, as shown in the figure
below. Assume that the Young’s modulus of the beam E =
8.5470x1010 Pa, moment of inertia I =
8.3375x104 mm4 , length of the beam
L = 0.2859 m and zero initial conditions. If there is an
unbalance mass of m0 = 2.3714 kg in the
rotating part of the motor, eccentricity is e = 4.1473...
machine will be......m
plz make sure while answering
11. A machine of 100 kg mass has 20 kg rotor with 0.5 mm eccentricity. The mounting springs have stiffness 85 kN/m and damping is negligible. If the operating speed is 20T rad/s and the unit is constrained to move yertically, the dynamic amplitude of the
(20%) Problem 3 An industrial machine has a mass of 430 kg and operates at a speed of 1500 rpm. It appears it has a rotating unbalance of moe-0.8 kg.m. A structural engineer suggested that the maximum transmitted force to the floor is 10000 N. The only isolation available are units, each of 7 x 106 N/m stiffness and a 0.1 damping ratio. a. What is the maximum allowable transmissibility of the force due to the rotating mass to the...
A 100 kg machine is rotating at 300 rpm and supported on two layers of rubber pads connected in series. Each layer has an equivalent stiffness of 80 KN/m. The machine has an unbalanced rotating element of 0.025 kg.m. The velocity amplitude at resonance is found to be 5 mm/sec. 1. Generally, deduce the equation of motion showing clearly the free body diagram. [30 marks] 2. Derive the particular solution and its velocity. [20 marks 3. Using the data mentioned...
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