scholarly journals Computer-aided design of low-thust rocket engines using the domain-specific knowledge database and CAE / CAD systems

2020 ◽  
Vol 18 (4) ◽  
pp. 106-116
Author(s):  
V. V. Ryzhkov ◽  
I. I. Morozov ◽  
E. A. Lapshin
Keyword(s):  
Knowledge Base ◽  
Computer Aided Design ◽  
Rocket Engine ◽  
Rocket Engines ◽  
Low Thrust ◽  
Production Environment ◽  
Gaseous Oxygen ◽  
Engine Model ◽  
Computer Aided ◽  
Aided Design

The paper presents approaches to computer-aided design of low-thrust thrust rocket engines using an extensive knowledge base that allows making basic technical decisions that determine the conceptual design of the engine, based on the developed algorithm of this process. The procedure of creating an electronic 3D-model of a low-thrust rocket engine fueled by gaseous oxygen-hydrogen in the environment of the graphical complex UNIGRAPHICS is described. 3D electronic models of the main elements of a rocket engine with a thrust of P = 25 N were obtained, with subsequent virtual assembly of all components, including the components comprised in the knowledge base, providing the development, among other things, of design documentation, creation of a production environment based on an electronic engine model, preparation for the product manufacturing and the manufacturing proper.

Development of a Welding Protocol for Automated Shipyard Manufacturing Systems

1997 ◽  
Vol 13 (01) ◽  
pp. 48-56
Author(s):  
Joel Milano ◽  
Ben Kassel ◽  
Douglas Mauk
Keyword(s):  
Mass Production ◽  
Computer Aided Design ◽  
Manufacturing Systems ◽  
Computer Integrated Manufacturing ◽  
Production Environment ◽  
Model Data ◽  
Product Model ◽  
Computer Aided ◽  
Close Relationship ◽  
Aided Design

Robotic manufacturing systems have provided improvements in productivity and quality in the automotive and semiconductor industries. Shipbuilding, however, is a one-of-a-kind manufacturing process and as such embodies a completely different set of problems than the mass production environment. The planning for robotics applications in shipbuilding must be done for each unique component and, therefore, must be done efficiently to achieve the benefits of automation. This will require a close relationship between computer-aided design (CAD), computer-aided manufacturing (CAM), computer-integrated manufacturing (CIM), and the manufacturing systems used on the waterfront. One of the major efforts to be performed is the integration of these processes through the timely presentation of information. One of the tools that can be used to integrate these processes is the Standard for the Exchange of Product Model Data (STEP). This paper will identify the relevant components of a STEP applications protocol (AP) for welding which can be applied to shipbuilding and outline the efforts required to bring it into existence.

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