Results 51 to 60 of about 29,110 (147)

Optimization Design Method of Offset Slider Crank Mechanism based on the Optimum Transmission Force Performance

open access: yesJixie chuandong, 2018
According to the transmission efficiency of offset slider crank mechanism,based on the analysis of offset slider crank mechanism working stroke,the sum of unit invalid force in the working stroke is put forward to evaluate the mechanism transmission ...
Ye Jinhu
doaj  

Dynamic analysis of crank slider mechanism considering 3D translational joint clearance based on variable contact area

open access: yesMechanics & Industry
This study investigates the influence of joint clearance on the motion accuracy of the slider in the 3D translational pair of the crank slider mechanism.
Wang Yuan   +5 more
doaj   +1 more source

Design and Multibody Dynamics Modeling of a Novel High‐Static‐Low‐Dynamic‐Stiffness Vibration Isolation Mechanism Based on Euler Buckling Characteristics

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Vibration isolation has long been a critical area of research, with the design of isolators based on the mechanical properties of Euler buckling beams representing one of the primary approaches. Traditionally, the focus has been on utilizing the negative stiffness characteristics of a post‐buckled Euler beam in parallel with positive stiffness
Yichang Feng   +3 more
wiley   +1 more source

Stair‐Climbing Wheelchairs for Enhanced Mobility: A Comprehensive Review of Fundamental Mechanisms, Design Concepts, and Performance Analysis

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT People with physical disabilities face significant mobility challenges while climbing uneven surfaces and staircases. In these circumstances, traditional wheelchairs do not provide stable, safely controlled mobility, underscoring the importance of building superior stair‐climbing wheelchairs for both medical and infrastructure purposes.
Gopisetti Manikanta   +10 more
wiley   +1 more source

具有变急回特性的插齿机主传动机构研究

open access: yesJixie chuandong, 2014
The analysis of the double crank-slider crank mechanism with quick-return characteristic is carried out,the relationship between the quick-return characteristic K and the installation angleφis deduced,the specific method of installation angle adjustment ...
熊显文, 程伟林
doaj  

Robotics for Crop Pollination: Recent Advances and Future Direction

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT There is great interest in alternative pollination strategies for crop production in the face of climate change and perennial threats to the traditional pollination mechanisms. This review explores the potential of robotic pollination as a promising solution to these challenges affecting crop fertilization, agricultural sustainability, and ...
Ranjan Sapkota   +3 more
wiley   +1 more source

Inverted Slider-Crank Mechanism Driven by Hydraulic Cylinder: Transfer Functions and Approximations

open access: yes, 2022
: Inverted slider-crank mechanisms driven by hydraulic cylinder have highly non-linear transfer functions, whichin this form complicate kinematic and dynamic researches.
Krasimir Ganchev (12341770)
core   +1 more source

Solvent‐free thallium(I) tetrakis[3,5‐bis(trifluoromethyl)phenyl]borate: crystal structure, supramolecular interactions and anisotropic thermal expansion

open access: yesActa Crystallographica Section C, EarlyView.
The solvent‐free structure of the thallium(I) salt of the weakly coordinating anion tetrakis[3,5‐bis(trifluoromethyl)phenyl]borate, Tl[BC32H12F24], exhibits short Tl…F contacts and a supramolecular architecture governed by C—H…F hydrogen bonds and weak F…F and C—F…π interactions.
Johannes Stephan   +4 more
wiley   +1 more source

FPGA‐based scanner and SerialEM server for 4D‐STEM electron tomography

open access: yesActa Crystallographica Section D, EarlyView.
Software for a multipurpose hardware board enables flexible scanning with a ready acquisition and processing pipeline to implement 4D‐STEM electron tomography.Four‐dimensional scanning transmission electron microscopy (4D‐STEM) enables the acquisition of diffraction patterns at every probe position in a dense array.
Shahar Seifer, Michael Elbaum
wiley   +1 more source

Queering Institutional Milestones in Elite Higher Education: Queer Perspectives on Princeton University and Coeducation (1960–1980)

open access: yesGender &History, EarlyView.
ABSTRACT A new archive of oral history interviews from LGBTQIA‐identified alumni, faculty and staff reveals the complex ways that queer and transgender students understood, experienced and remembered the long transition from single‐sex to coeducation at Princeton University.
Ezelle Sanford III   +2 more
wiley   +1 more source

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