Results 31 to 40 of about 944,070 (254)

A comprehensive method for the contact detection of a translational clearance joint and dynamic response after its application in a crank-slider mechanism

open access: yes, 2020
The clearance in a translational joint affects the dynamic characteristics and leads to chaotic response of the mechanism. An experiment using a 3D translational joint with clearances was conducted to reveal the characteristics of the relative motion ...
Mengbo Qian   +3 more
semanticscholar   +1 more source

Synthesis and Analysis of a Novel Linkage Mechanism with the Helical Motion of the End-Effector

open access: yesRobotics, 2020
The proposed study is focused on the development of a novel modification of the slider-crank mechanism, the kinematic scheme of which is organized by coupling planar and spatial (screw) kinematic chains.
Alexey Fomin   +2 more
doaj   +1 more source

Dynamic Simulation of Crank-Group Driving Mechanism with Clearance

open access: yesThe Open Mechanical Engineering Journal, 2015
For the crank-group driving mechanism, the assembly clearances can offer the possibility to remove overcoming processing errors. But the clearances inevitably affect the dynamic characteristics of the mechanism. In this paper, the dynamic simulation model of the crank-group driving mechanism is established by NX/Motion Simulation which is based on the ...
Liu Yansong, Cao Jujiang, Cai Dongfei
openaire   +1 more source

A bifurcation study to guide the design of a landing gear with a combined uplock/downlock mechanism [PDF]

open access: yes, 2014
This paper discusses the insights that a bifurcation analysis can provide when designing mechanisms. A model, in the form of a set of coupled steady-state equations, can be derived to describe the mechanism.
Lowenberg, Mark H   +7 more
core   +1 more source

Numerical and experimental investigation on the drive mechanisms of Alfa type Stirling engines

open access: yes, 2022
Stirling technology has applications in both renewable energy and waste heat recovery systems. The applicability of Stirling engines in these fields depends on the development of more efficient external combustion machines using renewable energy sources ...
Selma Ergin, Serdar Mete
core   +1 more source

The Working Cycle of the Motoring Internal Combustion Engine by a New Method with Cylinder Pressures as in Real Engine Operation

open access: yesJournal of Mechanical Engineering, 2022
The current standard methods of determining the mechanical losses of the ICE by motoring do not correspond to the low pressures in the cylinders of real engine operation.
Procházka Radek   +4 more
doaj   +1 more source

New Ways to Measure Mechanical Losses by Motoring an ICE with Increased Cylinder Pressure

open access: yesApplied Sciences, 2022
The article shows the results of measuring the mechanical losses of a piston engine in two new ways and explains the necessary engine modification for these measurements.
Radek Procházka   +3 more
doaj   +1 more source

Parameterization of the “alpha” type stirling engine mechanism for use in the timber industry

open access: yesIOP Conference Series: Earth and Environment, 2020
This article discusses the parameterization of the crank-slider group of the Stirling engine to use in timber industry. Parametrization means involves into the equations a lot of variables: lengths of connecting rods of piston and displacer, positions of
E. Tihonov   +4 more
semanticscholar   +1 more source

Comparison of stimulation patterns for FES-cycling using measures of oxygen cost and stimulation cost [PDF]

open access: yes, 2006
<b>Aim</b><p></p> The energy efficiency of FES-cycling in spinal cord injured subjects is very much lower than that of normal cycling, and efficiency is dependent upon the parameters of muscle stimulation.
Stone, B.   +6 more
core   +1 more source

Mechanical Behavior and Fracture Mechanisms of MXene/PVDF Nanocomponsites: In Situ Characterization and Multiscale Analysis

open access: yesAdvanced Functional Materials, EarlyView.
Multiscale experiments and modeling reveal how Ti3C2Tx MXene nanosheets reinforce PVDF nanocomposites. An optimal MXene loading (∼1 wt.%) nearly doubles tensile strength through efficient stress transfer, flake alignment, and crack‐deflection mechanisms, transforming ductile polymer behavior into a controlled multi‐stage fracture pathway which aligns ...
Bita Soltan Mohammadlou   +5 more
wiley   +1 more source

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