Results 61 to 70 of about 44,535 (316)
Development and Application of Downhole Directional Device for Coiled Tubing Sidetracking
Shiyou jixie, 2022 Considering the shortcomings of coiled tubing directional drilling device,based on the principle of hydraulic swing cylinder,a downhole directional device was designed for coiled tubing sidetracking,it is featured by continuous rotation,high precision ...
Yang Yusheng
doaj
Nihon Kikai Gakkai ronbunshu, 2019 In this paper, we designed a PIS control method that can automatically estimate the disturbance frequency using Schmitt trigger and implemented it in a pneumatic vibration isolator.
Sanga TAKAGI, Yuta KURUSU, Shinji WAKUI
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Energy Dissipation and Vibration Control: Modeling, Algorithm, and Devices [PDF]
Applied Sciences, 2017 The topic of vibration control and energy dissipation is among the oldest and most relevant in the field of engineering [...]
Gangbing Song, Steve Cai, Hong-Nan Li
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From Shear to Sound: Mechanics–Acoustics Mapping of TPMS Lattices
Advanced Engineering Materials, EarlyView.Triply periodic minimal surface (TPMS) lattices are mapped across mechanical and acoustic performance, revealing that descriptors validated in compression fail under shear. First‐time comparison with trusses included. A transition from porous to resonance‐driven absorption emerges at 25% density.
Lucía Doyle +3 more
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, 2022 Piezoelectric transducers can be used to harvest electrical energy from structural vibrations in order to power continuously operating condition monitoring systems local to where they operate.
Rohlfing, Jens +4 more
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Design and Test of Electromagnetic Vibration Type Fine and Small-Amount Seeder for Millet
AgricultureTo solve the problem of large sowing amount and poor sowing uniformity for millet, according to the physical characteristics of the millet seed and its sowing agronomic requirements, an electromagnetic vibration type fine and small-amount seeder was ...
Yanqing Zhang +11 more
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Development of CMG Active Vibration Control Device for Gondola
JSME international journal. Ser. C, Dynamics, control, robotics, design and manufacturing, 1994 For reduction of the low-cycle vibration of vehicles such as gondolas which are suspended flexibly, the authors studied the utilization of the control moment gyro (CMG) as an active vibration control device. The CMG is a moment generator using the gyroscopic moment effect and it is applied to attitude control of spacecraft. Particularly in the very-low-
Kanki, Hiroshi +4 more
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Electrified Damage in Motion Systems
Advanced Engineering Materials, EarlyView.The electrified damage in motion systems is a fundamental framework presenting the degradation pathway arising from the coupling of electrical energy transport with mechanical contact and interfacial chemistry. The framework positions electrified damage as a distinct degradation regime with unique characteristic surface morphologies and failures of ...
M. Humaun Kabir +2 more
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Nihon Kikai Gakkai ronbunshu, 2017 This paper deals with the vibration quenching problem of the one-degree-of-freedom system with a limited power supply. This system is forced by centrifugal force of rotating unbalance, and the system is quenched using a Hula-Hoop and a motor to assist ...
Yutaka YOSHITAKE +5 more
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From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics
Advanced Functional Materials, EarlyView.We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou +3 more
wiley +1 more source