Results 31 to 40 of about 307,462 (307)

A comprehensive survey of the analytical, numerical and experimental methodologies for dynamics of multibody mechanical systems with clearance or imperfect joints [PDF]

open access: yes, 2018
"Available online 19 December 2017"A comprehensive survey of the literature of the most relevant analytical, numerical, and experimental approaches for the kinematic and dynamic analyses of multibody mechanical systems with clearance joints is presented ...
Abdallah   +478 more
core   +1 more source

Dynamic behaviour of planar rigid multi-body systems including revolute joints with clearance [PDF]

open access: yes, 2007
This paper deals with a general methodology to assess the influence of the clearance size and the friction coefficient on the dynamic response of planar rigid multi-body systems including revolute joints with clearance.
Ambrósio, Jorge   +3 more
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

Experimental and Numerical Analysis of the Flow Inside a Configuration Including an Axial Pump and a Tubular Exchanger [PDF]

open access: yes, 2010
In centrifugal and axial pumps, the flow is characterized by a turbulent and complex behavior and also by physical mechanisms such as cavitation and pressure fluctuations that are mainly due to the strong interactions between the fixed and mobile parts ...
BAKIR, Farid   +3 more
core   +5 more sources

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

Wear prediction for dry revolute joint with clearance in multibody system by integrating dynamics model and wear model

open access: yesLatin American Journal of Solids and Structures
This work presents an investigation on wear prediction of multibody system including dry revolute clearance joint using a computational methodology. A procedure to analyze multibody system in which wear is present at revolute joints is presented.
Z.F. Bai, H.B. Zhang, Y. Sun
doaj   +1 more source

Nonlinear Characteristics of Revolute Joints with Clearance

open access: yesJournal of Aerospace Technology and Management, 2013
http://dx.doi.org/10.5028/jatm.v5i3.236 The nonlinear contact characteristic of revolute joint with clearance can degrade the performance of deployable structure. In this article, tensile and compressive tests are adopted to investigate the accuracies of the simplest conformal model and nonconformal model for contact, which are used to calculate the ...
Rong-qiang, Liu   +3 more
openaire   +5 more sources

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