... interventions, the mechanisms responsible for rehabilitation remain unclear. To better understand these mechanisms, several studies have used a system dynamics approach to investigate the effect of neuromuscular deficits (visual, vestibular, proprioceptive) and sensorimotor latencies on the stability...

... Abstract This study investigates the stability of robots in machining. The goal is to improve the dynamic performance of robots using an additional acceleration signal fed back through the conventional built-in proportional-derivative controller provided by the manufacturer. The structure...

... stability of the periodic responses are discussed through eigenvalue analysis. The experimental and numerical results of the periodic response are presented for comparison to the analytical results. a thermal system periodic response steady state response stability periodic heating temperature...

...DE-Vol. 72, Robotics: Kinematics, Dynamics and Controls ASME 1994 STABILITY ANALYSIS OF A FLEXIBLE ARM Liu Hongzhao, Zhang Xianmin, and Cao Weiqing Department of Mechanical Engineering Shaanxi Institute of Mechanical Engineering Xian, China ABSTRACT In this paper« the dynamic stability...

... Abstract The critical variational equation governing the stability of symmetric phase-locked modes for a pair of identical van der Pol oscillators with linear coupling is presented and shown to be equivalent to a Hill’s equation whose periodic coefficient involves the van der Pol limit cycle...

... are divergently unstable. Long and/or sufficiently extensible strings form low tension double loop balloons. Inextensible double balloons are coupled mode flutter unstable. The steady state balloons, steady state eyelet tension, and balloon stability are experimentally verified. elastic string rotating...

... with respect to a world coordinate system. Stacks are constructed incrementally by adding parts to an existing stack. The base part is positioned to maximize stability when placed on a special part buffer. Successive parts are added in a configuration minimizing the height of the stack c.g. and ensuring...

... problems that made it clear that a better understanding of how seals influence the overall rotor stability was necessary. To produce compressor designs at higher speeds requires that an adequate method of predicting the oil seal influence on rotor dynamic stability be available for the designer...

... consist of finite dynamic shaft elements, rigid disk, and bearing element. A finite dynamic element model including the effects of rotary inertia, gyroscopic moments, axial force, and axial torque is developed using the frequency dependent shape function. The natural whirl speeds, stability, and unbalance...

... Abstract An energy saving hydraulic system, known as load-sensing hydraulic system, to improve the efficiency of transmitting power from the pump to load has been studied in the present work. Due to the addition of the load sensing mechanism stability characteristics deteriorate in this system...

... Abstract Stability and bifurcation conditions for the asymmetric, periodic motion of a horizontal impact damper under a periodic excitation are developed through four mappings for two switch-planes relative to discontinuities. Period-doubling bifurcation for equispaced motion does not occur...

... Abstract This paper presents a research devoted to the study of instability phenomena in non-linear model with a constant brake friction coefficient. The condition of stability is based on the resolution of a generalized eigenvalue problem and the limit cycle amplitude are determined...

..., to demonstrate the validity of these criteria. Lund’s contributions are shown to be of high caliber when judged by the same criteria. rotordynamics Lund stability bearing design Proceedings of DETC'01 ASME 2001 Design Engineering Technical Conference and Computers and Information in Engineering...

... properties of CKMD. Results show that these properties can be tailored by strategic selection of the natural height ratio, which alters the energy landscapes of both Kresling modules and leads to qualitatively distinct mechanical responses. Further investigation shows that the rotational stability...

... is discussed. For strong nonlinearities, unstable parodic motions can be obtained and stabilities of the periodic motions are determined through the eigenvalue analysis. The Hopf and saddle bifurcations are observed. Numerical simulations are illustrated for both masses at the resonance peaks. The harmonic...

... Abstract Many researchers have proved the potential of autoparametric system in controlling stability and parametric resonance. In this paper, two different designs for auto-parametrically excited mass-spring-damper systems were studied: one system was controlled by rotational motion...

... in accordance with the rigid body dynamics. To evaluate the effects of elastic vibration on stability of the closed-loop system, two different sensor placements are simulated in our example. The numerical simulation demonstrates that the bending vibration may deteriorate the tracking performance of autopilot...

... propagating modes within the same branch of the lattice’s band structure is considered, and the stability of the energy exchange is assessed through a local analysis. Direct numerical integration of the lattice equations of motion validates the analytical expressions for energy exchange. These findings can...

... isolator on a motion stage. This introductory paper investigates the dynamics of a PD-controlled motion stage with friction isolator. The influence of the friction isolator on the response and stability of the system is examined through theoretical and numerical analysis. It is shown, using a case study...

.... Stability of the period-1 motions are discussed, and the corresponding eigenvalues of period-1 motions are presented. Finally, numerical simulations of stable period-1 motions are illustrated. periodic motions stability aerodynamic force PERIODIC MOTIONS IN A SINGLE-DEGREE-OF-FREEDOM SYSTEM UNDER...