Results 21 to 30 of about 73,235 (301)

POLYCENTRIC EXOPROSTHETIC KNEE JOINTS – EXTENT OF SHORTENING DURING SWING PHASE

open access: yesCanadian Prosthetics & Orthotics Journal, 2020
BACKGROUND: An often assumed advantage of polycentric knee joints compared to monocentric ones is the improved ground clearance during swing phase due to the geometric shortening of the lower leg segment (LLS).
Thomas Maximilian Köhler   +2 more
doaj   +1 more source

Numerical simulation of a model of vibrations with joint clearance [PDF]

open access: yesInternational Journal of Computer Applications in Technology, 2008
Motivated by the problem of vibrations due to joint clearance between components in complex mechanical systems, we study in this paper the motion of a beam between rigid obstacles. We assume that the material is elastic and the motion is planar.
Dumont, Yves, Paoli, Laetitia
openaire   +2 more sources

Clearance of proteoglycan from joint cavities. [PDF]

open access: yesAnnals of the Rheumatic Diseases, 1987
The rate of loss from the synovial cavity of proteoglycan subunit, a major constituent of cartilage, has been measured in rabbits with and without experimental arthritis. The effect of aggregation between proteoglycan and hyaluronic acid upon the rate of elimination has also been investigated.
D P, Page-Thomas   +3 more
openaire   +2 more sources

Characterization by full-size testing of pultruded frame joints for the Startlink house [PDF]

open access: yes, 2015
Presented in this paper are test results to determine the moment-rotation characteristics of joint details for a portal frame specific to a pultruded fiber reinforced polymer assembly for the Startlink house.
Mottram, J. Toby, Zafari, Behrouz
core   +1 more source

Dynamic Response of Multibody Systems with Multiple Clearance Joints [PDF]

open access: yesJournal of Computational and Nonlinear Dynamics, 2011
A general methodology for the dynamic modeling and analysis of planar multibody systems with multiple clearance joints is presented. The inter-connecting bodies that constitute a real physical mechanical joint are modeled as colliding components, whose dynamic behavior is influenced by the geometric, physical and mechanical properties of the contacting
Flores, Paulo, Lankarani, Hamid M.
openaire   +4 more sources

Dynamic response analysis for multi-degrees-of-freedom parallel mechanisms with various types of three-dimensional clearance joints

open access: yesInternational Journal of Advanced Robotic Systems, 2021
For spatial multibody systems, the dynamic equations of multibody systems with compound clearance joints have a high level of nonlinearity. The coupling between different types of clearance joints may lead to abundant dynamic behavior.
Jia Yonghao, Chen Xiulong
doaj   +1 more source

A Modular Low-clearance Wrist Orthosis for Improving Wrist Motion in Children with Cerebral Palsy [PDF]

open access: yes, 2014
Children with Cerebral Palsy (CP) often exhibit impairments in the coordination of the grip and lift phases of arm movements that directly impact their ability to perform activities of daily living (ADLs).
Beardsley, Scott A.   +3 more
core   +2 more sources

Research on Dynamic Characteristics of Flap Actuation System Considering Joint Clearance and Flexibility

open access: yesMachines, 2022
The flight control effects and flight quality of the aircraft are influenced by the flap actuation system directly. The main motivation of this research is to develop a rigid-flexible model of the flap actuation system with clearance and to explore the ...
Qi Wan   +4 more
doaj   +1 more source

Nonlinear Dynamic Behaviour of The Mechanisms Having Clearance and Compliant Joints [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2022
In this paper, the rigid four-bar linkage with clearance joint has been examined. The effects of design parameters have been analyzed separately. Considering chaotic behaviour and undesirable vibrations of the system induced by joint clearance, it has ...
Amirhosein Javanfar
doaj   +1 more source

Behaviour of pultruded beam-to-column joints using steel web cleats [PDF]

open access: yes, 2013
Response of pultruded Fibre Reinforced Polymer (FRP) beam-to-column joints with steel bolted web cleats is studied through physical testing. Two joint configurations are considered with either three or two bolts per cleat leg, as per drawings in a ...
Bank   +9 more
core   +1 more source

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