Mechanical Vibrations, Their Calculation, Measurement, Effects and Suppression |
Common terms and phrases
adjustment alternating current amplifier amplitude amplitude of vibration applied armature axis balance weight beam bending blade cathode-ray cathode-ray tube causes centre of gravity centrifugal force cloth gilt coupling crankshaft cylinder damper damping deflection demy 8vo dial gauge disc effect elastic energy engine equation exciting force fatigue film flexible fluid flywheel fracture frequency meters friction galvanometer high-frequency horizontal increase inertia mass instrument isochromatic lines isoclinic lines light load machine magnet magnified material measure mechanical vibrations metal Metalastik moment of inertia motion mounted move movement natural frequency obtained oscillations oscilloscope out-of-balance panel pendulum piston polarized position possible principal stresses produce propeller quency reciprocating engines record reed resistance resonant rigidity rotating Rotol rotor rubber seismic shown in Fig slip-rings speed stiffness strain gauges structure suitable superimposed vibrations surface swing torque torsional vibrations tuning fork turbine twisting unbalanced usually varies velocity vertical vibratory vibrograph wire