Results 21 to 30 of about 95,004 (291)
Advances in Mechanical Engineering, 2021 Joint clearance is unavoidable in the revolute joint of multi-link mechanism. Excessive value of joint clearance generally leads to the noise, vibration, and fatigue failure.
Xiaofeng Li +4 more
doaj +1 more source
Translational Joints With Clearance in Rigid Multibody Systems [PDF]
Journal of Computational and Nonlinear Dynamics, 2007 A computational methodology for dynamic description of rigid multibody systems with translational clearance joints is presented and discussed in this work. Over the past years, extensive work has been done to study the dynamic effect of the revolute joints with clearance in multibody systems, in contrast with the little work devoted to model ...
Flores, Paulo +3 more
openaire +2 more sources
Revolute joints with clearance in multibody systems [PDF]
Computers & Structures, 2004 A computational methodology for dynamic analysis of multibody mechanical systems with joint clearance is presented in this work. Clearances always exist in real joints in order to ensure the correct relative motion between the connected bodies being the gap associated to them a result of machining tolerance, wear, and local deformations.
Flores, Paulo, Ambrósio, Jorge
openaire +3 more sources
Dynamics of Multibody Systems With Spherical Clearance Joints [PDF]
Journal of Computational and Nonlinear Dynamics, 2005 This work deals with a methodology to assess the influence of the spherical clearance joints in spatial multibody systems. The methodology is based on the Cartesian coordinates, with the dynamics of the joint elements modeled as impacting bodies and controlled by contact forces. The impacts and contacts are described by a continuous contact force model
Flores, Paulo +3 more
openaire +3 more sources
Dynamic Analysis of a Delta Parallel Robot with Flexible Links and Joint Clearances
Applied Sciences, 2023 Delta robot is a lightweight parallel manipulator capable of accurately moving heavy loads at high speed and acceleration along a spatial trajectory. This intensive dynamic process may have a significant impact on the end-effector trajectory precision ...
Nadia Cretescu +2 more
doaj +1 more source
Numerical simulation of a model of vibrations with joint clearance [PDF]
International 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
3D Formulation for Revolute Clearance Joints [PDF]
, 2016 In this work, a general and comprehensive methodology for the modeling and analysis of spatial multibody systems with revolute clearance joints is presented. The proposed formulation considers the journal and the bearing elements as two cylindrical colliding bodies.
Marques, Pedro Filipe Lima +3 more
openaire +2 more sources
Nonlinear Dynamic Behaviour of The Mechanisms Having Clearance and Compliant Joints [PDF]
International 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
Dynamic Response of Multibody Systems with Multiple Clearance Joints [PDF]
Journal 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
Synthesis of clearance for a kinematic pair to prevent an overconstrained linkage from becoming stuck [PDF]
Mechanical Sciences, 2023 Mechanisms are prone to stuttering or even jamming due to the deformation of components, especially for overconstrained linkages for which geometric conditions must be strictly satisfied.
J. Qi, Y. Gao, F. Yang, F. Yang
doaj +1 more source