Results 11 to 20 of about 47,692 (213)

Study on a longitudinal–torsional ultrasonic vibration system with diagonal slits

Advances in Mechanical Engineering, 2017
The longitudinal–torsional ultrasonic vibration machining process is popular for machining hard and brittle materials. A longitudinal–torsional ultrasonic vibration system with diagonal slits was designed for the ultrasonic vibration machining process ...
Tao Chen, Shuliang Liu, Wu Liu, Chaoqun Wu   +3 more
doaj   +1 more source

Development of a torsional vibration suppression device using permanent magnets

Nihon Kikai Gakkai ronbunshu, 2021
Dual mass flywheel (DMF) dampers are conventionally used for torsional vibration suppression in automobile powertrains. The torsional vibration in powertrains has increased in recent years owing to the widespread downsizing of internal combustion engines
Tomohiro MIYABE, Norio YONEZAWA, Masafumi NANBA, Yoshitaka SOGA   +3 more
doaj   +1 more source

Intermittent behaviour of a Cracked Rotor in the resonance region [PDF]

, 2008
Vibrations of the Jeffcott rotor are modelled by a three degree of freedom system including coupling between lateral and torsional modes. The crack in a rotating shaft of the rotor is introduced via time dependent stiffness with off diagonal couplings ...
Litak, Grzegorz, Sawicki, Jerzy T.
core   +3 more sources

Multi-Condition Temperature Field Simulation Analysis of Magnetorheological Grease Torsional Vibration Damper

Frontiers in Materials, 2022
To reveal the transient temperature distribution pattern inside the magnetorheological grease (MRG) torsional vibration damper and explore the relationship between the current and internal temperature of the device, the transient temperature simulation ...
Zida Xiao, Hongsheng Hu, Qing Ouyang, Liyang Shan, Hongbo Su   +4 more
doaj   +1 more source

Vibration and buckling of thin-walled composite I-beams with arbitrary lay-ups under axial loads and end moments [PDF]

, 2013
A finite element model with seven degrees of freedom per node is developed to study vibration and buckling of thin-walled composite I-beams with arbitrary lay-ups under constant axial loads and equal end moments.
Banerjee J. R., Banerjee J. R., Bank L. C., Bleich F., Gjelsvik A., Jaehong Lee, Jones R.M., Joshi A., Joshi A., Kaya M., Kim N. I., Kim N. I., Kim N. I., Lee J., Lee J., Lee J., Leung A.Y. T., Leung A.Y. T., Leung A.Y. T., Leung A.Y. T., Li J., Li J., Machado S.P., Mohri F., Mohri F., Pavlovic R., Sapountzakis E. J., Sapountzakis E. J., Sapountzakis E. J., Thuc Phuong Vo, Timoshenko S., Timoshenko S., Vlasov V. Z., Voros G. M.   +33 more
core   +2 more sources

An Internal Resonance Based Method for Reducing Torsional Vibration of a Gear System

Machines, 2022
The gear system is one of the most widely-used transmission systems due to its accurate transmission ratio and high efficiency. However, torsional vibration may severely degrade transmission performance and shorten the gear lifespan.
Bohan Jin, Yushu Bian, Dongbo Tian, Zhihui Gao   +3 more
doaj   +1 more source

Radiative activity of magnetic white dwarf undergoing Lorentz-force-driven torsional vibrations

, 2011
We study radiative activity of magnetic white dwarf undergoing torsional vibrations about axis of its own dipole magnetic moment under the action of Lorentz restoring force. It is shown that pulsating white dwarf can convert its vibration energy into the
I. V. MOLODTSOVA, J. W. YU, Molodtsova I. V., R. X. XU, S. I. BASTRUKOV   +4 more
core   +1 more source

Cooling Torsional Nanomechanical Vibration by Spin-Orbit Interactions

, 2007
We propose and study a spin-orbit interaction based mechanism to actively cool down the torsional vibration of a nanomechanical resonator made by semiconductor materials.
Braginsky V B, Cleland A N, Gottfried K, Landau L D, Pikus G E, Scully M O, Zhao Nan, Zhou Duan-Lu, Zhu Jia-Lin   +8 more
core   +1 more source

Calculation and Optimal Design of Rotor Shaft Torsional Vibration of a Helicopter Transmission System

Jixie chuandong, 2022
The rotor shaft vibration of the helicopter transmission system is an important factor affecting its operational reliability. In order to improve the safety margin of torsional vibration of the rotor shaft system of a coaxial counter-rotating double ...
De Ni, Tuanjie Zhong, Jing Wei, Miaofei Cao, Bin Peng   +4 more
doaj  

Hybrid fuzzy sliding mode control for motorised space tether spin-up when coupled with axial and torsional oscillation [PDF]

, 2010
A specialised hybrid controller is applied to the control of a motorised space tether spin-up space coupled with an axial and a torsional oscillation phenomenon.
Cartmell, M., Chen, Y.
core   +1 more source