Development of intelligent integrated design system for hydraulic plane steel gate

A new aerodynamic design system has been developed that includes a through-flow solver for fans, axial compressors and turbines, and radial compressors and turbines. Three earlier papers gave an overview of the system and described the interactive interface and geometry generators. This paper focuses on several special features in the through-flow solver that provide increases in aerodynamic designer productivity. Some of the key features are stations decoupled from flow paths, ability to accept a wide variety of input parameters, use of gas property routines, ability to inject flow non-uniformly with a different composition than the main flow gas composition, ability to access information from several airfoil geometry generator solutions, and clear, comprehensive error handling. These special features and others have provided major savings from productivity improvements and reductions in design cycle time.

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A Reynolds-Averaged Navier-Stokes Solver in a Turbomachinery Design System

Volume 6: Turbo Expo 2007, Parts A and B ◽

10.1115/gt2007-27657 ◽

2007 ◽

Cited By ~ 1

Author(s):

Fahua Gu ◽

Mark R. Anderson

Keyword(s):

Turbulence Model ◽

Stokes Equations ◽

Three Dimensional ◽

Integrated Design ◽

Navier Stokes ◽

Design System ◽

Navier Stokes Equations ◽

Wall Functions ◽

Machine Performance ◽

Reynolds Averaged Navier Stokes

The design of turbomachinery has been focusing on the improvement of the machine efficiency and the reduction of the design cost. This paper presents an integrated design system to create the machine geometry and to predict the machine performance at different levels of approximation, including one-dimensional design and analysis, quasi-three-dimensional-(blade-to-blade, throughflow) and full-three-dimensional-steady-state CFD analysis. One of the most important components, the Reynolds-averaged Navier-Stokes solver, is described in detail. It originated from the Dawes solver with numerous enhancements. They include the use of the low speed pre-conditioned full Navier-Stokes equations, the addition of the Spalart-Allmaras turbulence model and an improvement of wall functions related with the turbulence model. The latest upwind scheme, AUSM, has been implemented too. The Dawes code has been rewritten into a multi-block solver for O, C, and H grids. This paper provides some examples to evaluate the effect of grid topology on the machine performance prediction.

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Integrated design system of voice-visual VR based on multi-dimensional information analysis

International Journal of Speech Technology ◽

10.1007/s10772-020-09696-w ◽

2020 ◽

Author(s):

Jing Wang ◽

Jiaye Li ◽

Xiaotian Shi

Keyword(s):

Integrated Design ◽

Design System ◽

Information Analysis

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An integrated design system for cable reinforced membranes using interactive computer graphics

Computers & Structures ◽

10.1016/0045-7949(81)90012-2 ◽

1981 ◽

Vol 14 (3-4) ◽

pp. 261-280 ◽

Cited By ~ 14

Author(s):

Robert B. Haber ◽

John F. Abel ◽

Donald P. Greenberg

Keyword(s):

Computer Graphics ◽

Integrated Design ◽

Design System ◽

Interactive Computer Graphics

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Fastener products lightweight design and forming process simulation

MATEC Web of Conferences ◽

10.1051/matecconf/201818500030 ◽

2018 ◽

Vol 185 ◽

pp. 00030

Author(s):

Jinn-Jong Sheu ◽

Chien-Jen Ho ◽

Cheng-Hsien Yu ◽

Kuo-Ting Wu

Keyword(s):

Topology Optimization ◽

Lightweight Design ◽

Integrated Design ◽

Optimization Method ◽

Design System ◽

Forming Process ◽

Multi Stage ◽

Die Stress ◽

Final Design ◽

Evaluation Stage

In this research, an integrated design system was established to design the product of nuts with flange and generate the lightweight geometry of product. The multi-stage forming process was evaluated using the CAE simulations. The topology optimization method was used to achieve the lightweight design, that included keeping necessary geometrical features and remove the excess volumes. The topological discrete model had been remodelled into a meaningful geometry which is able to satisfy the requirement of proof load of fastener specification. The final design of the lightweight geometry was adopted to test the capability of carrying proof load required using CAE simulations with the boundary conditions of the related ASTM standard. In the evaluation stage, the finite element method was used to do the topology optimization, the proof load evaluation, the forging process and the die stress analysis. The simulation results showed the lightweight design was able to reduce the weight of product and maintain enough mechanical strength. The proposed process and die designs were able to obtain the lightweight product without defects.

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