A 160 lb machine operates at 1750 rpm. The machine is supported by four 633A-100 vibration isolators. (The technical details of these mounts are included in pp. 15-16 in the notes on Moodle.) What will be the vibration isolation?
633A-100 Isolator details:
MAx load per isolator = 100 lbs
natural frequency = 8Hz
Transmissibility at resonance = 8:1
Damping factor = .05
Tmax = 10
A 160 lb machine operates at 1750 rpm. The machine is supported by four 633A-100 vibration isolat...
(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...