Incorporating the freeform haptic modelling system into new product development (original) (raw)
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Evaluating a haptic modelling system with industrial designers
proceedings of the …, 2002
Haptics research has become a significant issue in industrial design recently by offering a revolutionary approach for combining physical and digital modelling. Despite the progress made in the past two decades, haptic devices have not yet become commonplace in industrial design. SensAble's FreeForm haptic modelling system, combined with the PHANToM device, is the first CAID tool which lets designers sculpt and form virtual clay and foam using similar tools and techniques that are employed in the physical world. This paper reports the design and modelling experiment using the FreeForm system which aimed at examining a potential strengths and weaknesses of the system according to industrial designers, and exploring the level of usability that the haptic system would provide in 3D form-giving. The results show that the concept is very promising, especially for the early stages of design. However, the system has some drawbacks at the moment. In order to be able to use the system at the later stages of design, it is important to identify how industrial designers work, and what tools and techniques they commonly use in 3D form-giving.
Haptic modeling in the conceptual phases of product design
Virtual Reality, 2006
The paper presents the results of a research project aimed at developing an innovative system for modeling industrial products based on haptic technology. The system consists of a Computer Aided Design (CAD) system enhanced with intuitive designer-oriented interaction tools and modalities. The system integrates innovative six degrees of freedom (DOF) haptic tools for modeling digital shapes, with sweep operators applied to class-A surfaces and force computation models based on chip formation models. The system aims at exploiting designers' existing skills in modeling products, improving the products design process by reducing the necessity of building several physical models for evaluating and testing the product designs. The system requirements have been defined observing designers during their daily work and translating the way they model shapes using hands and craft tools into specifications for the modeling system and the haptic tool. The system prototype has been tested by designers who have found it intuitive and effective to use.
An evaluation of haptic feedback modelling during industrial design practice (2005)
Whilst new technologies in designing and rapid prototyping offer demonstrable benefits, their use can remove the potential for the designer to actively engage in the definition of form through tactile interaction with a physical material (as when working with foam or clay). This paper investigates the use of a haptic feedback device to facilitate interaction with virtual geometry and provide the designer with tactile cues during product modelling. The study concludes that limitations in the modelling capabilities of commercial haptic feedback technology restrict its ability to make a significant contribution to industrial design practice.
An evaluation of haptic feedback modelling during industrial design practice
Design Studies, 2005
Whilst new technologies in designing and rapid prototyping offer demonstrable benefits, their use can remove the potential for the designer to actively engage in the definition of form through tactile interaction with a physical material (as when working with foam or clay). This paper investigates the use of a haptic feedback device to facilitate interaction with virtual geometry and provide the designer with tactile cues during product modelling. The study concludes that limitations in the modelling capabilities of commercial haptic feedback technology restrict its ability to make a significant contribution to industrial design practice.
On the development of a haptic system for rapid product development
Computer-Aided Design, 2005
This paper presents a system development that extends haptic modeling to a number of key aspects in product development. Since haptic modeling has been developed based on physical laws, it is anticipated that a natural link between the virtual world and practical applications can be established based on haptic interaction. In the proposed system, a haptic device is used as the central mechanism for reverse engineering, shape modeling, real time mechanical property analysis, machining tool path planning and coordinate measuring machine (CMM) tolerance inspection path planning. With all these features in a single haptic system, it is possible to construct a three dimensional part by either haptic shape modeling or reverse engineering, then performing real-time mechanical property analysis in which the stiffness of a part can be felt and intuitively evaluated by the user, or generating collision free cutter tool path and CMM tolerance inspection path. Due to the force feed back in all of the above activities, the product development process is more intuitive, efficient and user-friendly. A prototype system has been developed to demonstrate the proposed capabilities.
During the practice of industrial design, digital methods are used to support the generation, development and specification of creative three dimensional (3D) form. Despite the increasing capabilities of digital methods, the distinctive nuances of current practice continue to use non-digital methods, particularly during the creative concept generation activities. This paper reports on a research project that combined emerging and established digital design technologies to define an approach for total ‘Digital Industrial Design’ (DID) that employs only digital methods (e.g. no pens/paper) with no post-process finishing (e.g. smoothing/painting of rapid prototype parts). The paper concludes that DID has the greatest potential for change and benefit during concept generation, where haptic feedback modelling and monochrome 3D printing have the capacity to replicate some of the qualities of tactile form-giving associated with workshop-based sketch modelling. To maximise impact, the case study was translated into in a web-based resource (http://www.lboro.ac.uk/microsites/lds/did/).
The Visual Computer, 2007
This paper presents the results of a research project aimed at developing haptic tools for virtual shape modelling resembling real tools like rakes and sandpaper used by modelers and designers in the real workshop. The developed system consists of a CAD (computer aided design) system enhanced with intuitive designer-oriented interaction tools and modalities. The system requirements have been defined on the basis of the observation of designers during their daily work, and translating the way they model shapes using hands and craft tools into specifications for the modelling system based on haptic tools.
Novel Interaction Methods for Product Design
This paper describes the first results of a research project aiming at developing a system based on shape manipulators and haptic tools for the creation, modification and evaluation of shapes of industrial design products. The paper describes how the users' requirements have been studied and analyzed, and subsequently used for the definition of the interaction modalities and tools of the system. The system architecture is described, and a first prototype built for evaluating the system concepts is presented. Finally, some ...
Haptic aided design: a case study
11th Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems, 2003. HAPTICS 2003. Proceedings., 2003
This paper presents a preliminary investigation of the effectiveness of haptic feedback for design processes involving mechanisms used by a human operator in interacting with an environment. Our example is a case study of the design of an amniocentesis device, which represents a relatively simple and yet meaningful application. We simulated the mechanism, as well as its intended working environment, represented by layered mass-spring surface meshes. The user feels force feedback when manipulating the simulated device via a haptic interface. The user can also interactively update the design by modifying the values of the parameters that describe the mechanism. To investigate the effectiveness of haptic rendering in this design problem, an informal preliminary user study was conducted, where each subject explored a discretized design space of the mechanism. The results of the user study suggest that haptic rendering is effective in expediting the design process for some applications.
Mixed-reality environment based on haptics and interactive simulation for product design review
2008
The aesthetic impact of a product is an important parameter that makes the difference among products technologically similar and with same functionalities. The shape, which is strictly connected to the aesthetic impact, has different meanings if seen from the design and the engineering point of view. This paper describes an environment based on an integration of MixedReality technologies, haptic tools and interactive simulation systems, named PUODARSI whose aim is to support designers and engineers during the phase of design review of aesthetic products. The environment allows the designer to modify the object shape, through the use of haptic devices, and the engineer to run the fluid-dynamics simulation on the product shape. The paper describes the main problems faced in integrating tools, originally developed for different purposes and in particular issues concerning data exchange, and the choice of those algorithms that guarantees low computational time as required by the applica...