Results 11 to 20 of about 22,380 (260)
Fractional Order KDHD Impedance Control of the Stewart Platform
Machines, 2022 In classical impedance control, KD, the steady-state end-effector forces are imposed to be proportional to the end-effector position errors through the stiffness matrix, K, and a proper damping term is added, proportional to the first-order derivatives ...
Luca Bruzzone, Alessio Polloni
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Virtual Energy Management for Physical Energy Savings in a Legged Robot Hopping on Granular Media
Frontiers in Robotics and AI, 2021 We discuss an active damping controller to reduce the energetic cost of a single step or jump of dynamic locomotion without changing the morphology of the robot. The active damping controller adds virtual damping to a virtual leg spring created by direct-
Sonia F. Roberts +1 more
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Effect of Varying Bottom Topography on the Radiation of Water Waves by a Floating Rectangular Buoy
Fluids, 2021 In the present study, the effect of an undulated bottom topography on the radiation of water waves by a floating rectangular buoy is analyzed. Various physical quantities of interest such as the added mass and damping coefficients associated with the ...
Kshma Trivedi, Santanu Koley
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The Damping Behavior of Ni Added Mn-Cu Damping Alloys
MATERIALS TRANSACTIONS, 2003 The temperature and frequency dependent damping behavior of Ni added Mn-Cu alloys were investigated. Ni addition not only increased the magnitude of the phase-transformation damping peak, but also decreased its frequency dependence. A decreased transformation temperature was found in the Ni added Mn-Cu alloys under the same treating condition, which ...
Yin, Fuxing +3 more
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Wave radiation by a horizontal circular cylinder submerged in deep water with ice-cover
Journal of Ocean Engineering and Science, 2019 Using the multipoles method, we formulate the problems of water wave radiation (both heave and surge) by a submerged circular cylinder in water with an ice-cover, the ice-cover being modelled as an elastic plate of very small thickness.
Dilip Das, Manomita Sahu
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Journal of Vibroengineering, 2023 The current research investigates the prediction of piezoelectric damping of resistively shunted beams caused by resistors via joule heating. In order to maximize the extra damping of the piezoelectric shunted beam system, a sensitivity analysis was done.
K. Gurubrahmam +2 more
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Research on Lateral Force of Pile Based on Liquefaction Site Effect
Shock and Vibration, 2020 This paper presents a theoretical investigation on the lateral force of pile in liquefaction site. Regarded liquefied soil as fluid, the vector method can be used to analyze the liquefaction velocity field and solve the analytical solution of the dynamic
Zuo Xi, Zhou Enquan
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Numerical Estimation of Torsional Dynamic Coefficients of a Hydraulic Turbine
International Journal of Rotating Machinery, 2009 The rotordynamic behavior of a hydraulic turbine is influenced by fluid-rotor interactions at the turbine runner. In this paper computational fluid dynamics (CFDs) are used to numerically predict the torsional dynamic coefficients due to added polar ...
Martin Karlsson +2 more
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A new reduced model of damped moment frame for rapid optimization of viscous damper placement
Japan Architectural Review, 2022 A new model reduction method is presented for moment‐resisting frames with viscous dampers. The proposed method considers (1) the interactive effect of added damping between the horizontal‐vertical directions and (2) the direct effect with regard to the ...
Hiroki Akehashi, Izuru Takewaki
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Journal of Marine Science and Engineering, 2023 Part 2 of this work presents a numerical methodology, validated using the experimental results presented in Part 1, to calculate the added modal coefficients of a submerged cylinder in water both when it oscillates and when it rotates with a whirling ...
Rafel Roig +2 more
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