Results 31 to 40 of about 309,052 (305)

Effect of Multi-Joint Clearance Coupling on Shimmy of Nose Landing Gear

open access: yesAerospace, 2023
The existence of joint clearances in the nose landing gear (NLG) is inevitable and significantly affects shimmy. It was found that the interaction of each joint clearance is closely related to the analysis of shimmy stability.
Guang Feng, Bingyan Jiang, Yiyao Jiang
doaj   +1 more source

Bone-to-bone and implant-to-bone impingement : a novel graphical representation for hip replacement planning [PDF]

open access: yes, 2020
Bone-to-bone impingement (BTBI) and implant-to-bone impingement (ITBI) risk assessment is generally performed intra-operatively by surgeons, which is entirely subjective and qualitative, and therefore, lead to sub-optimal results and recurrent ...
Elliott, Mark T.   +6 more
core   +1 more source

Antibiotics with Interleukin-15 inhibition reduces joint inflammation and bone erosions but not cartilage destruction in Staphylococcus aureus-induced arthritis [PDF]

open access: yes, 2018
Background: Staphylococcus aureus-induced arthritis causes rapid joint destruction, often leading to disabling joint damage despite antibiotics. We have previously shown that IL-15 inhibition without antibiotics is beneficial in S.
Bergmann, Berglind   +7 more
core   +1 more source

Sensitivity Analysis for Optimal Design of Multibody Systems with Clearance Joint [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2018
This paper deals with the sensitivity analysis and optimization of system parameters for a classical slider-crank mechanism as a multibody system which includes a clearance between the joints of coupler and slider. Due to the nonlinearity involved in the
Saeed Ebrahimi   +2 more
doaj  

Cycle-to-cycle control of swing phase of paraplegic gait induced by surface electrical stimulation [PDF]

open access: yes, 1995
Parameterised swing phase of gait in paraplegics was obtained using surface electrical stimulation of the hip flexors, hamstrings and quadriceps; the hip flexors were stimulated to obtain a desired hip angle range, the hamstrings to provide foot ...
Baardman, G.   +4 more
core   +3 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 Modeling and Simulation of a Rotating Single Link Flexible Robotic Manipulator Subject to Quick Stops [PDF]

open access: yes, 2014
Single link robotic manipulators are extensively used in industry and research operations. The main design requirement of such manipulators is to minimize link dynamic deflection and its active end vibrations, and obtain high position accuracy during its
Dupac, Mihai, Noroozi, Siamak
core   +1 more source

Research on Influence of Joint Clearance on Precision of 3-TPT Parallel Robot [PDF]

open access: yesMechanical Sciences, 2019
The error model of the working accuracy of parallel mechanism was established in this paper. The D-H matrix method and error independent method were used to analyze the clearance error of mechanism joint based on the inverse position kinematics solution.
C. Zhu, Z. Zhao
doaj   +1 more source

A study on dynamics of mechanical systems including joints with clearance and lubrication [PDF]

open access: yes, 2006
In this work a methodology for the dynamical analysis of mechanical systems considering realistic joint characteristics, namely, joints with clearance and lubrication is presented. For the case of the joints with clearance modelled as a contact pair with
Ambrósio, Jorge   +4 more
core   +1 more source

Research on High Precision Stiffness Modeling Method of Redundant Over-Constrained Parallel Mechanism

open access: yesSensors, 2023
Traditional stiffness modeling methods do not consider all factors comprehensively, and the modeling methods are not unified, lacking a global stiffness model.
Sen Wang   +5 more
doaj   +1 more source

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