The Experts below are selected from a list of 4020 Experts worldwide ranked by ideXlab platform
Pierre M Larochelle - One of the best experts on this subject based on the ideXlab platform.
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spatial mechanism design in virtual reality with networking
Design Automation Conference, 2001Co-Authors: John N Kihonge, Judy M Vance, Pierre M LarochelleAbstract:Mechanisms are used in many devices to move a rigid body through a finite sequence of prescribed locations in space. The most commonly used mechanisms are four-bar planar mechanisms that move an object in one plane in space. Spatial mechanisms allow motion in three-dimensions (3D). Spatial 4C mechanisms are two degree of freedom kinematic closed-chains consisting of four rigid links simply connected in series by Cylindrical (C) Joints. A Cylindrical Joint is a two degree of freedom Joint which allows translation along and rotation about a line in space. This paper describes a synthesis process for the design of 4C spatial mechanisms in a virtual environment. Virtual reality allows the user to view and interact with digital models in a more intuitive way than using the traditional humancomputer interface (HCI). The software developed as part of this research also allows multiple users to network and share the designed mechanism. Networking tools have the potential to greatly enhance communication between members of the design team at different industrial sites and therefore reduce design costs.
John N Kihonge - One of the best experts on this subject based on the ideXlab platform.
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spatial mechanism design in virtual reality with networking
Design Automation Conference, 2001Co-Authors: John N Kihonge, Judy M Vance, Pierre M LarochelleAbstract:Mechanisms are used in many devices to move a rigid body through a finite sequence of prescribed locations in space. The most commonly used mechanisms are four-bar planar mechanisms that move an object in one plane in space. Spatial mechanisms allow motion in three-dimensions (3D). Spatial 4C mechanisms are two degree of freedom kinematic closed-chains consisting of four rigid links simply connected in series by Cylindrical (C) Joints. A Cylindrical Joint is a two degree of freedom Joint which allows translation along and rotation about a line in space. This paper describes a synthesis process for the design of 4C spatial mechanisms in a virtual environment. Virtual reality allows the user to view and interact with digital models in a more intuitive way than using the traditional humancomputer interface (HCI). The software developed as part of this research also allows multiple users to network and share the designed mechanism. Networking tools have the potential to greatly enhance communication between members of the design team at different industrial sites and therefore reduce design costs.
Toshio Kawashima - One of the best experts on this subject based on the ideXlab platform.
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effect of interlayer thickness on residual thermal stresses in a ceramic to metal Cylindrical Joint
Journal of the American Ceramic Society, 1993Co-Authors: Osamu Kimura, Toshio KawashimaAbstract:It is well-known that large thermal stresses are caused in a ceramic-to-metal Joint by thermal expansion mismatch. Barton's analysis for stresses in Cylindrical rods (M. V. Bartoh, J. Appl. Mech., 8, A97 (1941)) was reformulated in terms of stresses arising from thermal expansion mismatches in elastically homogeneous Cylindrical Joints, and qualitative agreement was shown between these results and those produced by finite element calculations. Here, we apply these results to homogeneous Joints with interlayers having different thermal expansion coefficients, to examine the effect of interlayer thickness on diminishing thermal expansion mismatch stress.
Laura Montanaro - One of the best experts on this subject based on the ideXlab platform.
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Study of the interference contribution on the performance of an adhesive bonded press-fitted Cylindrical Joint
International Journal of Adhesion and Adhesives, 2014Co-Authors: Giorgio Gallio, Mariangela Lombardi, Davide Rovarino, Paolo Fino, Gabriele Marcuccio, Elvio Bonisoli, Stefano Tornincasa, Dario Pezzini, Daniele Ugues, Laura MontanaroAbstract:Abstract The adhesive bonding technology can be used in combination with other traditional joining methods, such as mechanical fastening techniques (e.g. rivets or bolts) or welding techniques, generating a hybrid Joint. Hybrid adhesive Joints are designed to exploit the advantages of the different techniques and, if possible, overcome their drawbacks. This study focuses on the interference fitted/adhesive bonded joining technique. This method consists in two Cylindrical components coupled together by inserting one into the other, after having placed an adhesive on the mating surfaces. This hybrid Joint, generally realized by exploiting acrylic anaerobic systems, has been studied to evaluate the interaction between the tensile field of the components (at the interference level) and the adhesive strength under both static and dynamic loading conditions. Notwithstanding this, the contributions of the adhesive and the interference on the performance of the final Joint are still not completely clear. The aim of this research is then to further study the factors affecting the resistance of this hybrid Joint. Hub-shaft samples, joined by means of a press fit, were tested under an axial push out load. Hybrid Joints were compared to both adhesive Joints in clearance conditions and interference Joints. In particular, different levels of interference were analyzed in order to clarify the role played by the tensile field between the hub and the shaft, and the influence of the friction effects between them. Numerical simulations were also employed to support the experimental data in the evaluation of the behavior of the adhesive and its relation with all the phenomena influencing the hybrid system. It was found that tribological phenomena played an important role in governing the mechanical behavior of the unbonded samples, while they can be considered negligible in presence of the adhesive. The correlation between bonded and unbonded press-fitted Joints was investigated pointing out that the maximum strength of the hybrid Joint is mainly related to the resistance of the epoxy adhesive.
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influence of the mechanical behaviour of different adhesives on an interference fit Cylindrical Joint
International Journal of Adhesion and Adhesives, 2013Co-Authors: Giorgio Gallio, Mariangela Lombardi, Davide Rovarino, Paolo Fino, Laura MontanaroAbstract:Abstract Hybrid adhesive joining techniques are often used in many industrial sectors to design lightweight structures. A hybrid adhesive Joint results from the combination of adhesive bonding with other traditional joining methods such as welding and mechanical fastening, with the aim of combining the advantages of the different techniques and overcoming their drawbacks. This study focuses on the interference fitted/adhesive bonded joining technique. In this application, two Cylindrical components are coupled together by inserting one into the other, after having placed an adhesive between them. Generally anaerobic acrylic adhesives, also known as “retaining compound” are used for this application. However the effect of the adhesive nature and of its mechanical and adhesive responses on the performance of the hybrid Joint is still unclear. The aim of the present research is to improve the understanding of the behaviour of different adhesives, including rigid epoxies and flexible polyurethanes, in the presence of an interference-fit. Static strength of bonded and unbonded interference fit Joints have been compared in order to investigate the role of the different adhesives.
Judy M Vance - One of the best experts on this subject based on the ideXlab platform.
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spatial mechanism design in virtual reality with networking
Design Automation Conference, 2001Co-Authors: John N Kihonge, Judy M Vance, Pierre M LarochelleAbstract:Mechanisms are used in many devices to move a rigid body through a finite sequence of prescribed locations in space. The most commonly used mechanisms are four-bar planar mechanisms that move an object in one plane in space. Spatial mechanisms allow motion in three-dimensions (3D). Spatial 4C mechanisms are two degree of freedom kinematic closed-chains consisting of four rigid links simply connected in series by Cylindrical (C) Joints. A Cylindrical Joint is a two degree of freedom Joint which allows translation along and rotation about a line in space. This paper describes a synthesis process for the design of 4C spatial mechanisms in a virtual environment. Virtual reality allows the user to view and interact with digital models in a more intuitive way than using the traditional humancomputer interface (HCI). The software developed as part of this research also allows multiple users to network and share the designed mechanism. Networking tools have the potential to greatly enhance communication between members of the design team at different industrial sites and therefore reduce design costs.
