...Lijuan Zhu; Uma Jayaram; OkJoon Kim In this paper, the authors postulate an approach to introduce reasoning capabilities into ontologies in the product assembly domain in order to truly exploit these logic-based and formal representations for product data. A model containing semantic applications...

... multidimensional Gaussian distributions for the variations coming from manufacturing machines. Zou and Morse ( 39 ) solved multiconstraint two-dimensional assemblies, in terms of gaps, to identify the assemblability in worst-case. Then they located the boundary of the acceptable assemblies in the parameter...

..., the search space is sequentially reduced to generate a series of subspaces, and a method is designed to ensure a complete coverage of these subspaces in the original feasible space. In order to validate the proposed method, a floor pan assembly from an automotive body assembly process is modeled...

... with simulations of a wide variety of assembly techniques using either electrophoretic, magnetic, or other trapping techniques. Significant speedup is possible for stochastic particle simulations when using the GPU, included in most personal computers (PCs), rather than the central processing unit (CPU...

.... The beginning of a tolerancing process is in this duality. As high precision assemblies cannot be analyzed with the assumption that form errors are negligible, we propose to apply this process to assemblies with form errors through a new way of allowing to parameterize forms and solve their assemblies...

...Zuozhi Zhao; Michelle Bezdecny; Byungwoo Lee; Yanyan Wu; Dean Robinson; Lowell Bauer; Mark Slagle; Duke Coleman; John Barnes; Steve Walls This paper presents the methods to move assembly variation analysis into early stages of aircraft development where critical partitioning, sourcing...

...Kedar Sambhoos; Bahattin Koc; Rakesh Nagi Assembly variant design in agile manufacturing involves modifying components or mixing and matching existing components from valid assemblies to proliferate new variant products. Wanget al. (2001, “Assembly Modeling for Complex Assembly Variant Design...

...Abhishek Seth, Ph.D.; Hai-Jun Su, Ph.D.; Judy M. Vance, Ph.D. Virtual reality (VR) technology holds promise as a virtual prototyping (VP) tool for mechanical assembly; however, several developmental challenges still need to be addressed before VP applications can successfully be integrated...

...Tao Peng; Arvind Balijepalli; Satyandra K. Gupta; Tom LeBrun Optical tweezers have emerged as a powerful tool for micro- and nanomanipulation. Using optical tweezers to perform automated assembly requires on-line monitoring of components in the assembly workspace. This paper presents algorithms...

..., and a pin-hole assembly. The model is compatible with the ASME/ ANSI/ISO Standards for geometric tolerances. Central to the new model is a Tolerance-Map (T-Map) (Patent No. 69638242), a hypothetical volume of points that models the 3D variations in location and orientation for a segment of a line (the axis...

...Wilma Polini; M. Marrocu; L. D’Ambrosio The aim of this work is to present a method for the tolerance analysis of an assembly involving free-form surfaces based on dimensional and geometric tolerances. The great effort of the present work is to deal with dimensional and geometric tolerances applied...

... a decomposition designed for both rapid prototyping and assembly. The proposed method considers potential manufacturing problems, and modifies the boundaries of individual parts, where necessary. Additionally, the system also generates complementary male/female (i.e., matching protrusion/depression) assembly...

...Xuan F. Zha; Sebti Foufou; Rachuri Sudarsan; Ram D. Sriram In this paper, we propose an integrated approach to analysis and evaluation for STEP-based (STandard for the Exchange of Product model data, officially ISO 10303) electromechanical assemblies. First, two assembly representational models...

...Sudarsan Rachuri; Young-Hyun Han; Sebti Foufou; Shaw C. Feng; Utpal Roy; Fujun Wang; Ram D. Sriram; Kevin W. Lyons The important issue of mechanical assemblies has been a subject of intense research over the past several years. Most electromechanical products are assemblies of several components...

... are dependent on the user-defined modeling scheme, and its inability to incorporate all Y14.5 rules. The vector loop method uses kinematic joints to model assembly constraints. It is also not fully consistent with Y14.5 standard. The ASU T-Map® based tolerance analysis method can model geometric tolerances...

...C. Lu; J. Y. H. Fuh; Y. S. Wong; Z. M. Qiu; W. D. Li; Y. Q. Lu This paper discusses the design modification issue in a collaborative assembly (co-assembly) design environment, which enables multiple geographically dispersed designers to design and assemble parts collaboratively and synchronously...

... of features in 3D models and in the positioning and orientation of assembly components. Other complementary new STEP resources are briefly discussed at the end of the paper. Contributed by the Engineering Informatics (EIX) Committee for publication in the JOURNAL OF COMPUTING AND INFORMATION SCIENCE...

...A. Mikchevitch; J.-C. Le´on; A. Gouskov The aspects of fast and realistic simulation of flexible parts during the Assembly/Disassembly (A/D) process are discussed in this paper. The proposed approach, adapted to current Virtual Reality (VR) devices and incorporating mechanical models, will be used...

...Li Chen,; Tingjin Wang, and; Zhijie Song Collaborative CAD systems enabling collaboration in computer-aided design processes among distributed designers are gaining more and more attention. Yet, such systems, especially in support of collaborative assembly modeling, are hardly achievable...

... of the AirGlove with a virtual assembly system called VADE is explained next. Finally, details of experiments with the device are presented and discussed. Results indicate that users wearing the AirGlove can feel a minimum mass of about 100 grams (∼1N weight) and the device can create a fairly realistic weight...