Engineering, 17.02.2020 16:52 mfar3457
When an electric motor is mounted on rubber isolators, the measured peak of the normalized amplitude ratio kX /F is 4. What must the frequency ratio r be in order to reduce the normalized amplitude ratio to 1/3 if we model the damping in the isolators as viscous damping?
Answers: 3
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Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.
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Select any two (2) areas of applications of chain-drive. (clo4) a)-permanent lubrication necessary b)-hydraulic forklift truck operation c)-rigging and heavy moving materials d)-relatively high maintenance costs e)-costlier than belt drives
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When an electric motor is mounted on rubber isolators, the measured peak of the normalized amplitude...
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