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A 100 kg machine is rotating at 300 rpm and supported on two layers of rubber...
(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 200 kg machine is mounted, at first, on an undamed spring. During operation the machine...
A 200 kg machine is mounted, at first, on an undamed spring. During operation the machine has an unbalanced rotating component. When the system is operated at a variety of frequencies the machine had an unbounded response at 40 Hz. At 400 Hz the steady-state amplitude was 3.0 mm. (a) What is the stiffness of the mounting? (b) What is the magnitude of the rotating unbalance? (c) The machine of part (a) is mounted on the same spring in parallel...
(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 200 kg machine is mounted, at first, on an undamed spring. During operation the machine has an unbalanced rotating component. When the system is operated at a variety of frequencies the machine had an unbounded response at 40 Hz. At 400 Hz the steady-state amplitude was 3.0 mm. (a) What is the stiffness of the mounting? (b) What is the magnitude of the rotating unbalance? (c) The machine of part (a) is mounted on the same spring in parallel...
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