Results 11 to 20 of about 246 (149)
On the motion of mechanical systems with unilateral constraints
Vietnam Journal of Mechanics, 1984 The motion of the system with unilateral constraints being imposed may be divised into positions, so that in certain positions the constraint is taut and the motion occurs as if the constraint was bilateral and in other positions the constraint is not ...
Do Sanh
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Existence of solutions for a Lipschitzian vibroimpact problem with time-dependent constraints
Fixed Point Theory and Algorithms for Sciences and Engineering, 2022 We study a mechanical system with a finite number of degrees of freedom, subjected to perfect time-dependent frictionless unilateral (possibly nonconvex) constraints with inelastic collisions on active constraints. The dynamic is described in the form of
Samir Adly, Nguyen Nang Thieu
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Calculation of maximum Lyapunov exponent for vibro-impact system
Xi'an Gongcheng Daxue xuebao, 2021 With the help of discontinuous mapping and tail mapping, the maximum Lyapunov exponent of the system with the above three structures was constructed using Khasminskii transform.
Hui DANG, Jinqian FENG, Sen YANG
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Coupling multibody system and granular dynamics application to a 2D benchmark
EPJ Web of Conferences, 2017 We present a benchmark to experimentally validate the method we have developed to simulate mechanical devices interacting with granular media. Consequently the method we develop is able to solve problems involving bilateral and unilateral constraints ...
Lantsoght Olivier +4 more
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Cylindrical shells and panels subject to bilateral and unilateral contact constraints [PDF]
REM: International Engineering JournalThe cylindrical shell-medium (soil or rock) contact problem solution is typically achieved through numerical methods, where the modeling or approximation of the medium’s behavior is usually made considering it as an elastic deformable foundation that ...
McGlennon da Rocha Régis +3 more
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Human-Like Balance Recovery Based on Numerical Model Predictive Control Strategy
IEEE Access, 2020 The purpose of this study is to implement a human-like balance recovery controller and analyze its robustness and energy consumption. Three main techniques to maintain balance can be distinguished in humans, namely (i) the ankle strategy, (ii) the hip ...
Keli Shen +2 more
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On the decision of contact problems of structural mechanics with unilateral constraints and friction by step-by-step analysis [PDF]
Инженерно-строительный журнал, 2013 Constructively nonlinear problems with unilateral constraints and friction with unknown in advance contact zone are frequent in the calculation of various structures.
A.A. Lukashevich, L.A. Rozin
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A Control Structure for Unilateral System with Communication Rate Constraint
SICE Journal of Control, Measurement, and System Integration, 2018 This study proposes a design method for unilateral control systems with communication rate constraints. In the case where it is necessary to control under a communication rate constraint, the effect of the quantization noise should be minimized using ...
Hiroshi Okajima +2 more
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Frontiers in Robotics and AI, 2020 Quadruped robots require compliance to handle unexpected external forces, such as impulsive contact forces from rough terrain, or from physical human-robot interaction.
Guiyang Xin +8 more
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Neural analysis of elastoplastic plane stress problem with unilateral constraints
Computer Assisted Methods in Engineering and Science, 2022 The paper is a development and continuation of paper [8] where the Panagiotopoulos approach was extended for the elastoplastic analysis. In case of elastic analysis the parameters of the Hopfield-Tank Neural Network (HTNN) are calibrated only once but ...
Ewa Pabisek
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