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Mechanical Engineering Commons

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2002

Mechanical Engineering Conference Presentations, Papers, and Proceedings

Articles 1 - 4 of 4

Full-Text Articles in Mechanical Engineering

Stiffness Testing Of Hydraulic Hoses, Kurt A. Chipperfield, Judy M. Vance Sep 2002

Stiffness Testing Of Hydraulic Hoses, Kurt A. Chipperfield, Judy M. Vance

Mechanical Engineering Conference Presentations, Papers, and Proceedings

Hydraulic hoses are used in industrial machines to transmit power. These hoses have a physical stiffness that depends upon the hose size and type. If a computer model is used to predict the path a hose will take through a machine, accurate physical stiffness properties are required for the hose. These stiffness properties are not available from hose manufacturers and hose test methods are scarce in the available literature. This paper describes methods used for testing the bending stiffness, torsion stiffness, and axial stiffness of hydraulic hoses. Plots of the stiffness data are given for a sample hose.


Vrspatial: Designing Spatial Mechanisms Using Virtual Reality, Judy M. Vance, Pierre M. Larochelle, Denis Dorozhkin Sep 2002

Vrspatial: Designing Spatial Mechanisms Using Virtual Reality, Judy M. Vance, Pierre M. Larochelle, Denis Dorozhkin

Mechanical Engineering Conference Presentations, Papers, and Proceedings

The traditional computer interface provides a two-dimensional (2D) interface to design. The monitor is a two-dimensional visual display and the desktop mouse is a two-dimensional input device. These tools are sufficient for designing 2D products such as planar linkages. When these tools are used to design three-dimensional (3D) products however, the designer must learn how to use the 2D tools to interact with objects defined in three-dimensional space. Virtual reality technology provides truly three-dimensional tools, with position tracked visual displays and input devices, that allow interaction with 3D digital products. Over the last few years we have developed a virtual ...


Implementing Speech Recognition In Virtual Reality, Denis V. Dorozhkin, Judy M. Vance Sep 2002

Implementing Speech Recognition In Virtual Reality, Denis V. Dorozhkin, Judy M. Vance

Mechanical Engineering Conference Presentations, Papers, and Proceedings

Virtual Reality (VR) is becoming an important tool in the engineering product development process. The virtual environment provides the user with the ability to interact with three-dimensional digital representations of products using natural head and hand motions. While interacting with digital objects in VR seems natural, the use of traditional two-dimensional menu systems does not always provide a convenient interface to controlling task specifications in the three-dimensional space. New human-computer-interfaces are needed for this emerging VR design tool. This paper will present the details of implementing a speaker-independent, command and control, speech recognition menuing system for a virtual reality application ...


Modeling Of Hydraulic Hose Paths, Kurt A. Chipperfield, Judy M. Vance Sep 2002

Modeling Of Hydraulic Hose Paths, Kurt A. Chipperfield, Judy M. Vance

Mechanical Engineering Conference Presentations, Papers, and Proceedings

Hydraulic hoses are key components used to transfer power in heavy industrial machinery. The routing of these hoses is currently performed late in the product design process because no accurate physical models of the hoses exist that allow designers to predict the path the hoses will follow when installed in the machine. Designers must either guess the path the hose will take based on prior experience or wait until the first product prototype is built in order to experiment with the hose routes. This paper describes the use of ADAMS, a commercially available dynamic modeling package, to predict hose paths ...