Results 1 to 10 of about 67,803 (300)
Motion Control of a Two-Degree-of-Freedom Linear Resonant Actuator without a Mechanical Spring [PDF]
Sensors, 2020 This study aims to present a new two-degree-of-freedom (DOF) linear resonant actuator (LRA) and its motion control method without a position sensor. The design method of 2-DOF LRA which resonates with only detent force without a mechanical spring is ...
Gyunam Kim, Katsuhiro Hirata
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Energies, 2016 Pitch Control plays a significant role for a large wind turbine. This study investigates a novel robust hydraulic pitch control system of a large wind turbine.
Ching-Sung Wang, Mao-Hsiung Chiang
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Motion Characteristics Analysis of a Novel Spherical Two-degree-of-freedom Parallel Mechanism
Chinese Journal of Mechanical Engineering, 2022 Current research on spherical parallel mechanisms (SPMs) mainly focus on surgical robots, exoskeleton robots, entertainment equipment, and other fields. However, compared with the SPM, the structure types and research contents of the SPM are not abundant
Ziming Chen +5 more
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An experimental study of a circular cylinder's two-degree-of-freedom motion induced by vortex
International Journal of Naval Architecture and Ocean Engineering, 2016 This paper presents results of an experimental investigation of vortex-induced vibration (VIV) of a flexibly mounted and rigid cylinder with two-degrees-of-freedom with respect to varying ratio of in-line natural frequency to cross-flow natural frequency,
Shin-Woong Kim +3 more
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Control of Robot Arm Motion Using Trapezoid Fuzzy Two-Degree-of-Freedom PID Algorithm
Symmetry, 2020 Symmetries play very important in the dynamics of robot systems. The relevant control of robot arm motion with fault diagnosis including the optimized fuzzy algorithm based on the error rate adjustment P, I, D value (Fuzzy PID algorithm) model relies on ...
Meng Bi
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CHATTER, STICKING AND CHAOTIC IMPACTING MOTION IN A TWO-DEGREE OF FREEDOM IMPACT OSCILLATOR [PDF]
International Journal of Bifurcation and Chaos, 2001 We consider the dynamics of a two-degree of freedom impact oscillator subject to a motion limiting constraint. These systems exhibit a range of periodic and nonperiodic impact motions. For a particular set of parameters, we consider the bifurcations which occur between differing regimes of impacting motion and in particular those which occur due to a ...
David James Wagg, Steven R. Bishop
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Motion paths finding for multi-degree-of-freedom mechanisms
International Journal of Mechanical Sciences, 2020 Multiple degree-of-freedom (DOF) mechanisms can provide more flexible reconfigurations than 1 DOF ones but are more complex to analyze. One difficulty is the existence of an unlimited number of valid motion directions at each configuration point. In this
Yang Li
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Periodic sticking motion in a two-degree-of-freedom impact oscillator [PDF]
International Journal of Non-Linear Mechanics, 2005 Periodic sticking motions can occur in vibro-impact systems for certain parameter ranges. When the coefficient of restitution is low (or zero), the range of periodic sticking motions can become large. In this work the dynamics of periodic sticking orbits with both zero and non-zero coefficient of restitution are considered. The dynamics of the periodic
David James Wagg
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DYNAMICS OF A TWO DEGREE OF FREEDOM VIBRO-IMPACT SYSTEM WITH MULTIPLE MOTION LIMITING CONSTRAINTS [PDF]
International Journal of Bifurcation and Chaos, 2004 We consider the dynamics of impact oscillators with multiple degrees of freedom subject to more than one motion limiting constraint or stop. A mathematical formulation for modeling such systems is developed using a modal approach including a modal form of the coefficient of restitution rule.
David James Wagg, Steven R. Bishop
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A Rotary-Linear SPM Voice Coil Motor With PM Flux Bridges for Output Performance Improvement
IEEE Access, 2021 This paper proposes a rotary-linear surface-mounted permanent magnet (PM) voice coil motor (RL-SVCM) with PM flux bridges in place of the iron flux bridges in a traditional RL-SVCM for enhancing average torque and force ripple but slight damage of torque
Fuzhen Xing +3 more
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