Results 21 to 30 of about 67,803 (300)

Seismic Source Tracking With Six Degree‐of‐Freedom Ground Motion Observations

open access: yesJournal of Geophysical Research - Solid Earth, 2021
Back azimuth (BAz) information can be determined from combined measurements of rotations and translations at a single site. Such six degree‐of‐freedom (6‐DoF) measurements are reasonably stable in delivering similar information compared to a small‐scale ...
S. Yuan   +5 more
semanticscholar   +1 more source

Realization of two-degree-of-freedom motions control using parallel magnetic suspension

open access: yesNihon Kikai Gakkai ronbunshu, 2017
Parallel magnetic suspension has been proposed which levitates multiple floators with a single power amplifier. This study applies this concept to a multi-degree-of-freedom system.
Yoshinori NARISAWA   +5 more
doaj   +1 more source

A compound double pendulum with friction

open access: yesForces in Mechanics, 2023
We study a version of the two-degree-of-freedom double pendulum in which the two point masses are replaced by rigid bodies of irregular shape and nonconservative forces are permitted.
Hollis Williams
doaj   +1 more source

Precision multi-degree-of-freedom laser therapy system for excision of eschar over burn wound

open access: yes工程科学学报, 2019
Early escharotomy in cases of severely burned patients can reduce infection and shorten the course of treatment. From the treatment effect, the quality of escharotomy operation is critical to the postoperative recovery of burn patients.
WANG Guang-jian   +4 more
doaj   +1 more source

Design and analysis of coaxial cylindrical WPT coils for two-degree-of-freedom applications

open access: yesJournal of Physics D: Applied Physics, 2020
In this work, we propose two-degree-of-freedom coils for a high coupling wireless power transfer (WPT) system to achieve a constant efficiency against rotation and linear movements.
M AH, Xu Yang, Wenjie Chen, Xiaoteng Li
semanticscholar   +1 more source

Basic characteristics of a parallel magnetic suspension system controlling two-degree-of-freedom motions

open access: yesNihon Kikai Gakkai ronbunshu, 2018
A basic single-degree-of-freedom magnetic suspension system consists of one floator, one electromagnet and one amplifier. For multi-degrees-of-freedom control, multiple electromagnets and multiple amplifiers are necessary, which increases the cost of ...
Yoshinori NARISAWA   +5 more
doaj   +1 more source

High-Speed Virtual Flight Testing Platform for Performance Evaluation of Pitch Maneuvers

open access: yesAerospace, 2023
To research serious nonlinear coupling problems among aerodynamics, flight mechanics, and flight control during high maneuvers, a virtual flight testing platform has been developed for a large-scale, high-speed wind tunnel, based on the real physical ...
Hao Li   +5 more
doaj   +1 more source

In-Structure Response Spectra of an Auxiliary Building in a Nuclear Power Plant Considering Equipment–Structure Interaction

open access: yesApplied Sciences, 2022
A two-degree-of-freedom (two-DOF) equation of motion was derived in the frequency domain using a substructuring technique for efficiently calculating the in-structure response spectrum (ISRS) considering equipment–structure interaction.
Sook-Jin Ahn, Ji-Hun Park
doaj   +1 more source

Adaptive Sliding Mode Relative Motion Control for Autonomous Carrier Landing of Fixed-Wing Unmanned Aerial Vehicles

open access: yesIEEE Access, 2017
In this paper, relative motion model and control strategy for autonomous fixed-wing unmanned aerial vehicle (UAV) carrier landing are addressed. First, a coupled six-degrees-of-freedom (6-DOF) non-linear relative motion model is established from 6-DOF ...
Zewei Zheng   +3 more
doaj   +1 more source

Numerical study of the influence of hydrofoil hydrodynamic performance considering near-free surface

open access: yesBrodogradnja
Bionic flapping hydrofoil motion is increasingly used in bionic underwater robots. However, many scholars have focused their attention on the navigation problem in deep-water environments, thus ignoring changes in the hydrodynamics of hydrofoils under ...
Yuanhui Wei   +6 more
doaj   +1 more source

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