Kinematic sensitivity analysis of linkage with joint clearance based on transmission quality

Tsai, Ming‐June; Lai, Tien-Hsing

doi:10.1016/j.mechmachtheory.2004.05.009

Cited by 85 publications

(47 citation statements)

References 18 publications

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“…In the first method, it is modeled with a virtual mass-less link (VML) that connects the journal center to the bearing center and describes a frictionless contact between the rigid elements of the joint [18][19][20][21]. While in the other model, the journal and the bearing experience three different modes of relative motion; namely contact mode, free flight mode and impact mode [22,23].…”

Section: Joint Clearance Modelingmentioning

confidence: 99%

A novel algorithm for kinematic and dynamic optimal synthesis of planar four-bar mechanisms with joint clearance

et al. 2015

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In practice, clearances in the joints are inevitable due to tolerances and defects arising from design and manufacturing. Moreover, the joints undergo wear and backlash, resulting in poor accuracy and repeatability. This paper presents a novel optimization method for simultaneously kinematic and dynamic synthesis of a planar four-bar linkage with clearance at the joints. It is well-known that in the presence of clearance at a joint, the linkage gains an additional, uncontrollable degree of freedom which is the source of error. Here, we synthesis the path generation problem while controlling the unwanted degrees of freedom by revising the mass distributions of the moving links. An algorithm based on particle swarm optimization method solves this highly nonlinear optimization problem with some constraints. Finally, an example is included to demonstrate the efficiency of the algorithm. The results clearly show that the linear and angular accelerations of the links for the optimal design are very smooth and bounded.

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Section: Joint Clearance Modelingmentioning

confidence: 99%

A novel algorithm for kinematic and dynamic optimal synthesis of planar four-bar mechanisms with joint clearance

et al. 2015

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“…the input torque, etc. ), the mechanism will be in a kineto-static state of equilibrium that all free joints are reciprocal to the transmission wrench screw (TWS) of the linkage [22]. The position and orientation deviation of the linkage will be solvable under the additional equilibrium equations.…”

Section: The Relations Of the Tws And The Jts Of Multi-loop Mechanismsmentioning

confidence: 99%

“…Let link i represents any link of the linkage under consideration, and link j is another incident link to link i. Accordingly, the joint twist screw (JTS, $ ij ) of the i-link to the j-link should be reciprocal to the transmission wrench screw (TWS, S ij ) across the joint [22]. It follows that…”

Section: The Relations Of the Tws And The Jts Of Multi-loop Mechanismsmentioning

confidence: 99%

“…One considered only partial joint clearances in a mechanism [9][10][11][12][13][14][15][16][17][18][19]. The other considered the effects of all joint clearance in a mechanism [20][21][22]. Ting et al [21] postulated a geometrical model to explain the output variation in an actual linkage.…”

Section: Introductionmentioning

confidence: 99%

“…Ting et al [21] postulated a geometrical model to explain the output variation in an actual linkage. Recently, Tsai and Lai [22] analyzed the transmission performance of an actual single-loop linkage. Some people apply the principle of virtual work to find the clearance effect of a mechanism [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Accuracy analysis of a multi-loop linkage with joint clearances

Tsai

Lai

2008

Mechanism and Machine Theory

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Unkontrollierbare Bewegungen ebener Mechanismen mit Gelenkspiel

Hofmeister

Sextro

Röschel

2005

Proc Appl Math and Mech

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In dieser Arbeit wird ein analytisches Berechnungsverfahren vorgestellt, mit dem der gesamte Positions‐ und Orientierungsraum (ErrorWorkspace) ebener Mechanismen mit spielbehafteten Gelenken kinematisch beschrieben bzw. dargestellt werden kann. Für die Berechnung wird der gesamte Positions‐ und Orientierungsraum im Kinematischen Bildraum dargestellt, wobei auf besondere Merkmale eingegangen wird. Der ErrorWorkspace, der mit Hilfe des Berechnungsverfahren bestimmt wird, wird an einem Koppelgetriebe, an einem Filmgreifergetriebe und an einem Double‐rocker four‐bar mechanism mit Kurbelantrieb dargestellt und analysiert. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

show abstract

Kinematic sensitivity analysis of linkage with joint clearance based on transmission quality

Cited by 85 publications

References 18 publications

A novel algorithm for kinematic and dynamic optimal synthesis of planar four-bar mechanisms with joint clearance

A novel algorithm for kinematic and dynamic optimal synthesis of planar four-bar mechanisms with joint clearance

Accuracy analysis of a multi-loop linkage with joint clearances

Unkontrollierbare Bewegungen ebener Mechanismen mit Gelenkspiel

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