Dynamic vibration absorber (DVA) with large auxiliary mass has better control performance, but it is also more bulky. Therefore, the mass ratio (the ratio of auxiliary mass of DVA to mass of ...

Marine propulsion systems are critical components in both commercial and military vessels, necessitating highly effective vibration control to ensure operational safety, longevity of machinery, and ...

Three kinds of new simultaneous optimum design methods of plural dynamic absorbers are proposed. These methods allow the optimum tuning in many natural modes of multiple degrees of freedom structures ...

An accelerometer-based active vibration-control system for CNC machine tools is designed to improve machining productivity by maximizing material removal rate (MRR), with the result that tool-head ...

Individual control of rotor blades reduces noise, vibration and fuel consumption. Functional tests for five-blade rotors in wind tunnel successfully completed. Focus: Aeronautics, Aircraft noise Under ...

After the ISA converges, the rotor vibration amplitude Vin is gradually reduced. in V drops from 11.74 um to 2.70 um, decreasing by 77.0%. Performing FFT analysis to the rotor displacement, the 1st ...