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Keywords: stability
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Proceedings Papers

Proc. ASME. IDETC-CIE2021, Volume 9: 17th International Conference on Multibody Systems, Nonlinear Dynamics, and Control (MSNDC), V009T09A040, August 17–19, 2021
Paper No: DETC2021-68752
.... The corresponding stability of the periodic understanding of dynamics of a thermal system. The technique responses are discussed through eigenvalue analysis. The of periodic heating was also used to maintain device experimental and numerical results of the periodic response are temperatures below reliable limits...
Proceedings Papers

Proc. ASME. DETC94, 23rd Biennial Mechanisms Conference: Robotics — Kinematics, Dynamics and Controls, 39-44, September 11–14, 1994
Paper No: DETC1994-0304
...Abstract Abstract In this paper, the dynamic stability of a flexible arm is studied according to Liapunov’s first approximation method of stable criteria. The governing equations are developed based on Lagrange and modal analysis method and linearized round the nominal values of generalized...
Proceedings Papers

Proc. ASME. DETC97, Volume 4: Design for Manufacturing Conference, V004T31A020, September 14–17, 1997
Paper No: DETC97/DFM-4329
... of the stack 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...
Proceedings Papers

Proc. ASME. DETC97, Volume 1B: 16th Biennial Conference on Mechanical Vibration and Noise, V01BT07A015, September 14–17, 1997
Paper No: DETC97/VIB-4060
... the compressor designer guidance n to future high performance compressor liquid al, compressor, finite element, stability TURE clearance (L) clearance at the exit (L) clearance at the inlet (L) specific heat of fluid (FL/TM) ,CYZ YY damping coefficients of seal (F-t/L) depth of the groove (L) depths...
Proceedings Papers

Proc. ASME. DETC97, Volume 1B: 16th Biennial Conference on Mechanical Vibration and Noise, V01BT07A007, September 14–17, 1997
Paper No: DETC97/VIB-4056
...Proceedings of DETC 97 1997 ASME Design Engineering Technical Conferences September 14-17,1997, Sacramento, California natural whirl speeds, stability, and unbalance response of rotor system are calculated on several cases and compared with the conventional finite elements. KEYWORDS : Finite...
Proceedings Papers

Proc. ASME. DETC97, Volume 1C: 16th Biennial Conference on Mechanical Vibration and Noise, V01CT12A003, September 14–17, 1997
Paper No: DETC97/VIB-4020
...Abstract 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...
Topics: Stability
Proceedings Papers

Proc. ASME. DETC97, Volume 1D: 16th Biennial Conference on Mechanical Vibration and Noise, V01DT20A010, September 14–17, 1997
Paper No: DETC97/VIB-4074
... balloons 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...
Proceedings Papers

Proc. ASME. IDETC-CIE2000, Volume 2: 26th Design Automation Conference, 157-163, September 10–13, 2000
Paper No: DETC2000/DAC-14534
...Abstract 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...
Proceedings Papers

Proc. ASME. IDETC-CIE2001, Volume 6A: 18th Biennial Conference on Mechanical Vibration and Noise, 583-588, September 9–12, 2001
Paper No: DETC2001/VIB-21369
... technology, 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...
Proceedings Papers

Proc. ASME. IDETC-CIE2001, Volume 6B: 18th Biennial Conference on Mechanical Vibration and Noise, 1739-1746, September 9–12, 2001
Paper No: DETC2001/VIB-21505
...Abstract 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...
Proceedings Papers

Proc. ASME. IDETC-CIE2001, Volume 6C: 18th Biennial Conference on Mechanical Vibration and Noise, 2987-2994, September 9–12, 2001
Paper No: DETC2001/VIB-21726
...Abstract 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...
Proceedings Papers

Proc. ASME. IDETC-CIE2020, Volume 10: 44th Mechanisms and Robotics Conference (MR), V010T10A075, August 17–19, 2020
Paper No: DETC2020-22017
... 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...
Proceedings Papers

Proc. ASME. IDETC-CIE2020, Volume 2: 16th International Conference on Multibody Systems, Nonlinear Dynamics, and Control (MSNDC), V002T02A045, August 17–19, 2020
Paper No: DETC2020-22715
... 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...
Proceedings Papers

Proc. ASME. IDETC-CIE2019, Volume 6: 15th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, V006T09A046, August 18–21, 2019
Paper No: DETC2019-97471
...Abstract 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...
Proceedings Papers

Proc. ASME. IDETC-CIE2019, Volume 8: 31st Conference on Mechanical Vibration and Noise, V008T10A065, August 18–21, 2019
Paper No: DETC2019-97773
... 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...
Proceedings Papers

Proc. ASME. IDETC-CIE2019, Volume 8: 31st Conference on Mechanical Vibration and Noise, V008T10A003, August 18–21, 2019
Paper No: DETC2019-97879
... 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...
Proceedings Papers

Proc. ASME. IDETC-CIE2019, Volume 8: 31st Conference on Mechanical Vibration and Noise, V008T10A067, August 18–21, 2019
Paper No: DETC2019-98354
... 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, that the addition of a friction isolator shrinks...
Proceedings Papers

Proc. ASME. IDETC-CIE2019, Volume 8: 31st Conference on Mechanical Vibration and Noise, V008T10A026, August 18–21, 2019
Paper No: DETC2019-97716
... mappings, the predictions of period-1 motions varying with excitation frequency are obtained. 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. Keywords: periodic...
Proceedings Papers

Proc. ASME. IDETC-CIE2019, Volume 8: 31st Conference on Mechanical Vibration and Noise, V008T10A041, August 18–21, 2019
Paper No: DETC2019-97572
... of Southern California Los Angeles, CA 90089, USA bingen@usc.edu ABSTRACT Developed in this work, is a simple and innovative control method, by which a nonminimum-phase (NMP) process can be easily stabilized in a closed-loop setting. The method is named as the parallel feed-forward compensation...
Proceedings Papers

Proc. ASME. IDETC-CIE2011, Volume 6: 35th Mechanisms and Robotics Conference, Parts A and B, 1159-1165, August 28–31, 2011
Paper No: DETC2011-47897
...) that quantifies the dynamicity of a given biped walking motion. The DGM is associated with the gait stability, and quantifies the effects of inertia in terms of the Zero-Moment Point (ZMP) and the ground projection of center of mass (GCOM). Also, DGM takes into account the stance foot dimension and the relative...