Finite Element Analysis Concepts

Akin, J.E.

doi:10.1142/7785

Cited by 80 publications

(58 citation statements)

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“…The aim of the FEA is to assess the performance of the proposed mechanism in achieving accurate RCM and high stiffnesses in the parasitic direction and get further insights into the physics of mechanism by performing parametric analysis. Because of the large deformations involved (deformations are 50 times the thickness of compliant linkages), a nonlinear FEA 26 is carried out considering geometric nonlinearities.…”

Section: Analysis Of the Proposed Mechanismmentioning

confidence: 99%

On novel compliant mechanisms for remote center motion

Gandhi

Bobade

Chen

2018

Advances in Mechanical Engineering

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This article presents the synthesis, parametric analysis with a semi-empirical model, and experimental validation of novel compliant remote center motion mechanisms with high cross-axis stiffnesses. The literature backs up ample use of rigid links in the synthesis of remote center motion mechanism in various applications. Compliant remote center motion mechanisms reported earlier are cable-driven mechanisms for endoscopy manipulation. On the contrary, in this article we propose spatial, compliant-link (leaf flexure link) remote center motion mechanisms (patent pending). Synthesis of the proposed compliant mechanism poses the main challenge of achieving precise remote center motion with prominent cross-axis stiffnesses. The proposed design is conceived using angularly assembled compliant links (with fixed-fixed boundary) which upon application of force undergo simultaneous twisting and bending resulting in the proposed remote center motion. Higher width as compared to the thickness along with angular arrangement gives the desired cross-axis stiffness. Extensive nonlinear finite element analysis establishes the accuracy of the remote center motion, high cross-axis stiffnesses, and the accuracy of the proposed semi-empirical model based on parametric analysis. Furthermore, the proposed mechanism is fabricated and preliminary experiments validate remote center motion in an example case.

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Section: Analysis Of the Proposed Mechanismmentioning

confidence: 99%

On novel compliant mechanisms for remote center motion

Gandhi

Bobade

Chen

2018

Advances in Mechanical Engineering

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“…The finite element method solves these systems of linear equations iteratively until a convergence is achieved [40]. The solution gives the temperature field, T, for each node.…”

Section: K T P =mentioning

confidence: 99%

“…The most critical properties for heat flow studies include conductivity, specific heat and density of the materials of the components being studied [40]. The properties of the materials used in this model are illustrated in the Table 2.…”

Section: Materials Propertiesmentioning

confidence: 99%

Transient Thermal Modeling in Laser Welding of Metallic/Nonmetallic Joints Using <i>SolidWorks</i><sup>&reg;</sup> Software

Mwema¹

2017

IJNM

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The purpose of this research is to develop a SolidWorks® model for transient temperature field of laser welding of PMMA/SS 304 materials for application in fabrication of the ultrasonic back-plate, with a view of optimizing the experimental conditions. The study is carried out on these materials because of the increasing application of both metals and non-metals. The work focuses specifically on these materials because they have been experimentally studied previously and as such, this study can be accepted as an assessment into feasibility of using SolidWorks® model to study the temperature field of the laser welding processes of metals and non-metals. The results of the SolidWorks® transient thermal model show that there is a concentration of high temperatures at the point of contact. It also shows that temperature decreases as we move in (between laser and the top face) to the thickness of the part. Additionally the maximum temperature occurs at the last point of the welding; this may be due to the accumulation of the temperature before arriving at the end. These findings are comparable to the previous simulated and experimental results on temperature field during laser welding of PMMA/SS 304 materials.However, SolidWorks® is shown to present a challenge in modeling a moving source of laser power.

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“…The configuration has been modeled using the volume surface integral equation (VSIE)-based [10], [11] moment method model, where the rectangular dielectric has been meshed to 2546 tetrahedrons and the metallic strip to 86 triangular surface patches, giving a total of 5530 unknowns. The surface and volume integrals over the source triangles and tetrahedrons have been computed using symmetric quadrature rules [12], in which the number of points has been varied from seven to one depending on the separation distance between source and field points. Approximate Galerkin method of moments (MoM) has been used, in which the test has been employed at the centroids of the observation triangles and tetrahedrons, and the singularity of the self-term matrix elements has been extracted using the procedure proposed in [13].…”

Section: Introductionmentioning

confidence: 99%

A Singly Fed Rectangular Dielectric Resonator Antenna With a Wideband Circular Polarization

Sulaiman

Khamas

2010

Antennas Wirel. Propag. Lett.

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Article:Sulaiman, M.I. and Khamas, S.K. (2010) ReuseUnless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version -refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher's website. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request.

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Finite Element Analysis Concepts

Cited by 80 publications

References 0 publications

On novel compliant mechanisms for remote center motion

On novel compliant mechanisms for remote center motion

Transient Thermal Modeling in Laser Welding of Metallic/Nonmetallic Joints Using <i>SolidWorks</i><sup>&reg;</sup> Software

A Singly Fed Rectangular Dielectric Resonator Antenna With a Wideband Circular Polarization

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Finite Element Analysis Concepts

Cited by 80 publications

References 0 publications

On novel compliant mechanisms for remote center motion

On novel compliant mechanisms for remote center motion

Transient Thermal Modeling in Laser Welding of Metallic/Nonmetallic Joints Using &lt;i&gt;SolidWorks&lt;/i&gt;&lt;sup&gt;&amp;reg;&lt;/sup&gt; Software

A Singly Fed Rectangular Dielectric Resonator Antenna With a Wideband Circular Polarization

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Transient Thermal Modeling in Laser Welding of Metallic/Nonmetallic Joints Using <i>SolidWorks</i><sup>®</sup> Software