Results 11 to 20 of about 68,552 (195)

Mechanism and Characteristics of Global Varying Compliance Parametric Resonances in a Ball Bearing

Applied Sciences, 2020
Varying compliance (VC) is an unavoidable form of parametric excitation in rolling bearings and can affect the stability and safety of the bearing and its supporting rotor system.
Zhiyong Zhang, Thomas Sattel, Yujie Zhu, Xuan Li, Yawei Dong, Xiaoting Rui   +5 more
doaj   +1 more source

Parametric rolling in regular head waves of the Kriso container ship : numerical and experimental investigation in shallow water [PDF]

, 2019
The IMO Intact Stability Code considers the parametric rolling phenomenon as one of the stability failure modes because of the larger roll angles attained.
Delefortrie, Guillaume, Lataire, Evert, Tello Ruiz, Manasés, Vantorre, Marc, Villagomez, José   +4 more
core   +1 more source

Quasi optimal sagittal gait of a biped robot with a new structure of knee joint [PDF]

, 2013
The design of humanoid robots has been a tricky challenge for several years. Due to the kinematic complexity of human joints, their movements are notoriously difficult to be reproduced by a mechanism. The human knees allow movements including rolling and
ABBA, Gabriel, HOBON, Mathieu, LAKBAKBI EL YAAQOUBI, Nafissa   +2 more
core   +6 more sources

Study and Analysis on Stress Safety Judgment Method of Heavy Vehicle Rolling on Long-Distance Pipeline

Geofluids, 2022
With the rapid increasing mileage of China’s long-distance oil and gas pipelines, the intersection construction with other civil engineering, encroachment by invading the pipeline route, and other third-part problems occurred occasionally. Heavy vehicles
Ning Shi, Jinxu Jiang, Lin Geng, Liwen Zhang, Yakun Niu, Kaimeng Wang   +5 more
doaj   +1 more source

Temperature control in transport delay systems [PDF]

, 2010
A control architecture is proposed for temperature control in manufacturing applications based on the internal model principle. It is applied to a problem where the material exit temperature is to be controlled by changing the transportation speed to ...
Grimble, M.J., Hearns, G.
core   +1 more source

Vibration energy harvesting for low frequency using auto-tuning parametric rolling pendulum under exogenous multi-frequency excitations

Theoretical and Applied Mechanics Letters, 2020
: An electromagnetic parametrically excited rolling pendulum energy harvester with self-tuning mechanisms subject to multi-frequency excitation is proposed and investigated in this paper. The system consists of two uncoupled rolling pendulum.
Surat Punyakaew, Manukid Parnichkun
doaj   +1 more source

How parametric resonance mechanism follows quench mechanism in disoriented chiral condensate [PDF]

, 2001
We show how parametric resonance mechanism follows quench mechanism in the classical linear sigma model. The parametric resonance amplifies long wavelength modes of the pion for more than $10 fm/c$.
Anselm, Anselm, Asakawa, Bjorken, Bjorken, Blaizot, Hiro-Oka, Hiro-Oka, Hiro-Oka, Kaiser, Kowalski, Landau, Mrówczyński, Rajagopal, Rajagopal, Shinji Maedan   +15 more
core   +3 more sources

Prospects and Problems of Tachyon Matter Cosmology [PDF]

, 2002
We consider the evolution of FRW cosmological models and linear perturbations of tachyon matter rolling towards a minimum of its potential. The tachyon coupled to gravity is described by an effective 4d field theory of string theory tachyon. In the model
Alexei Starobinsky, Andrei Frolov, Armendáriz-Picón, Bean, Bond, Fabris, Feinstein, Felder, Garriga, Gerasimov, Gibbons, Greene, Kamenshchik, Kofman, Kofman, Kutasov, Lev Kofman, Mukohyama, Sen, Sen, Sen   +20 more
core   +2 more sources

Hybrid Inflation and Brane-Antibrane System [PDF]

, 2003
We study a string theory inspired model for hybrid inflation in the context of a brane-antibrane system partially compactified on a compact submanifold of (a caricature of) a Calabi-Yau manifold.
Bagla J S, Becker K, Benaoum H B, Bennett C L, Bento M C, Bergshoeff E, Burgess C, Burgess C P, Choudhury D, Cline J M, Debajyoti Choudhury, Debashis Ghoshal, Dileep P Jatkar, Dvali G, Fairbairn M, Felder G, Felder G N, Frolov A V, Gaiotto D, Garousi M, Ghoshal D, Gibbons G, Gibbons G W, Helgason S, Herdeiro C, Kachru S, Kachru S, Kachru S, Kim C, Kluson J, Kofman L, Kolb E W, Kutasov D, Kutasov D, Lambert N, Leblond F, Lee A T, Li X z, Li X-z, Liddle A, Linde A, Linde A, Linde A D, Majumdar M, Maloney A, Mazumdar A, Mehen T, Peiris H V, Piao Y S, Pogosian L, Quevedo F, Sami M, Sami M, Sen A, Sen A, Sen A, Sen A, Sen A, Sen A, Sen A, Sen A, Sen A, Shiu G, Shiu G, Shiu G, Spergel D N, Strominger A, Sudhakar Panda, Takayanagi T, Wang B   +69 more
core   +2 more sources

A 'User-Friendly' Approach to the Dynamical Equations of Non-Holonomic Systems [PDF]

, 2007
Two effective methods for writing the dynamical equations for non-holonomic systems are illustrated. They are based on the two types of representation of the constraints: by parametric equations or by implicit equations.
Benenti, Sergio
core   +5 more sources