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Showing papers by "Vaughn College of Aeronautics and Technology published in 1987"


Patent
24 Sep 1987
TL;DR: A tool-workpiece instructional system is provided for simulating operation on a workpiece in the form of a welding site as shown on a display, by a student using a tool such as a welding torch simulator as discussed by the authors.
Abstract: A tool-workpiece instructional system is provided for simulating operation on a workpiece in the form of a welding site as shown on a display, by a student using a tool such as a welding torch simulator. The torch is a mock-up of as real torch, having mock values and torch tip, but is not supplied with any gas. A light pen and mercury switches are mounted inside to detect torch position and angular position relative to the display. A computer with a control program uses information regarding parameters of torch location relative to the display, including torch angle, torch distance to the display, torch position as projected on the plane of the display, welding rod position (as detected by a touch screen on top of the display) and oxygen and acetylene valve positions of the welding torch, and uses the parameters to determine what would happen to a welding site during a real weld and addresses appropriate segments in a video disc player to display a simulation of the welding site in real time.

166 citations


Journal ArticleDOI
TL;DR: In this paper, a method for determining the potential flow around bodies of revolution, at incidence, in uniform, incompressible, flow is presented, which uses polynomial distributions of both sources and doublets, in the manner of Fuhrmann.
Abstract: A method is presented for determining the potential flow around bodies of revolution, at incidence, in uniform, incompressible, flow. This method utilises polynomial distributions of both sources and doublets, in the manner of Fuhrmann, and gives considerable advantage over existing techniques. In particular, when compared with the method of Nielsen, in a typical case, the computer storage requirement is reduced by a factor of eleven. Compared with panel methods the saving is very much greater. Unlike the method of Landweber, both body surface and flow field conditions are obtainable and it would appear that the new method is ideally suited to the ‘store trajectory’ application in place of the existing discrete source method.

3 citations


Journal ArticleDOI
TL;DR: In this paper, le transfert de chaleur superficiel and the facteur d'analogie de Reynolds dans les conditions d'ecoulement compressible.
Abstract: On obtient des expressions pour le frottement superficiel, le transfert de chaleur superficiel et le facteur d'analogie de Reynolds dans les conditions d'ecoulement compressible