Results 11 to 20 of about 18,172 (251)
Mathematics, 2020 In this paper, we propose a nonlinear position control using only position feedback to guarantee the tolerances for position tracking errors and yaw. In the proposed method, both mechanical and electrical dynamics are considered.
Wonhee Kim, Donghoon Shin, Youngwoo Lee
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Passivity Analysis of Nonlinear Euler-Bernoulli Beams [PDF]
Modeling, Identification and Control, 2002 The Lagrangian equations for distributed-parameter systems based on Hamilton's principle are developed. These equations are subsequently used to derive nonlinear models for beams. The passivity properties of the flexible mechanical systems based on their
Mehrdad P. Fard
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Amplitude stabilization of micromechanical oscillators using engineered nonlinearity
Physical Review Research, 2021 Micromechanical oscillators provide periodic output signals for clocks and sensors by vibrating in a single mechanical mode. The mode is conventionally excited into self-sustained oscillations and stabilized with an external electronic feedback loop.
James M. L. Miller +4 more
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AIP Advances, 2020 The nonlinear resonance response of electromechanical structures, such as Duffing resonators, can discern both geometrical and internal anomalies, such as the “softening” response attributed to deviations from an ideal parallel plane for the former and ...
Seokwon Kang +2 more
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IEEE Access, 2021 An improved fractional-order nonlinear active disturbance rejection speed control (FO-NADRC) method is proposed for hydraulic turbine regulating systems (HTRSs) with a mechanical delay.
Bo Ai, Ting Liu, Zhe Zhang, Bin Wang
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Feedback Control of a Nonlinear Electrostatic Force Transducer
Sensors, 2020 We document a feedback controller design for a nonlinear electrostatic transducer that exhibits a strong unloaded resonance. Challenging features of this type of transducer include the presence of multiple fixed points (some of which are unstable ...
Ivan Ryger +6 more
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Elements of future snowpack modeling – Part 1: A physical instability arising from the nonlinear coupling of transport and phase changes [PDF]
The Cryosphere, 2022 The incorporation of vapor transport has become a key demand for snowpack modeling in which accompanied phase changes give rise to a new, nonlinear coupling in the heat and mass equations.
K. Schürholt +3 more
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Fibrous nonlinear elasticity enables positive mechanical feedback between cells and ECMs [PDF]
Proceedings of the National Academy of Sciences, 2016 SignificanceMechanical interactions between cells and the ECM critically regulate cell function, including growth and migration. By measuring forces exerted by breast tumor cells embedded within collagen matrices, we reveal a positive mechanical cross-talk between the cell and ECM: cells pulling onto collagen fibers align and stiffen the matrices, and ...
Matthew S, Hall +6 more
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A Simple Model of the Energy Harvester within a Linear and Hysteresis Approach
Micromachines, 2023 In this article, a model of an energy harvester, the mechanical part of which is an inverted pendulum, is proposed. We investigated the stability of a linearized system.
Mikhail E. Semenov +4 more
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Passivity-based Visual Feedback Control of Nonlinear Mechanical Systems
Transactions of the Institute of Systems, Control and Information Engineers, 2002 This paper investigates the relative rigid body motion (positions and rotations) control problem with visual information. Firstly the model of the relative rigid body motion and the nonlinear observer are considered in order to derive the visual feedback system.
MARUYAMA, Akira +2 more
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