A performance modeling and design environment for senior computer engineering undergraduates

2004 ◽  
Author(s):  
R.H. Klenke ◽  
J.M. Blevins ◽  
J.H. Aylor ◽  
J.J. Hein
Keyword(s):  
Performance Modeling ◽  
Computer Engineering ◽  
Design Environment ◽  
Engineering Undergraduates ◽  
A Performance

A Performance Modeling Language for Automotive Embedded Control Systems Based on UML

2012 ◽  
Vol 236-237 ◽  
pp. 344-349
Author(s):  
Xiao Feng Yin ◽  
Jing Xing Tan ◽  
Xiu Ting Wu ◽  
Zhi Jun Gong
Keyword(s):  
Performance Modeling ◽  
Resource Constraints ◽  
Timing Analysis ◽  
Unified Modeling Language ◽  
Functional Model ◽  
Design Stage ◽  
Modeling Language ◽  
Embedded Control ◽  
Early Design Stage ◽  
A Performance

To improve the timing related performance of the embedded software of automotive control system, a performance modeling language has been developed based on UML (Unified Modeling Language) using meta-modeling technique. The proposed language consists of three kinds of meta-models used to define the high-level modeling paradigms for software structure, target platform and runtime system respectively. The modeling environment configured by the proposed language and software modules of functional model importation, components allocation, task forming and timing analysis can reuse the existing functional models, add timing requirement as well as resource constraints, and fulfill formal timing analysis at an early design stage. As results, the reliability of the automotive embedded control software can be improved and the development cycle and cost can also be reduced.

A Design Environment for Performance Modeling and Analysis of Aero Engine Lubrication Systems

2013 ◽  
Author(s):  
Prasath Mahendiran ◽  
Bommaian Balasubramanian ◽  
Muralidhar Manavalan ◽  
Adithya Rao
Keyword(s):  
Performance Modeling ◽  
Failure Modes ◽  
System Modeling ◽  
Simulation Software ◽  
Lubrication System ◽  
Design Environment ◽  
Report Generation ◽  
Modeling And Analysis ◽  
Aero Engine ◽  
Performance Modeling And Analysis

This paper presents the overview and capability of design Environment for performance modeling and analysis of aero engine lubrication systems. The design environment is implemented as an intuitive and easy to use toolbox implemented within the commercial off-the-shelf (COTS) simulation software environment MATLAB/Simulink®. The toolbox consists of a library of predefined reusable/generic lubrication system components like flow resistance elements, pumps and orifice. The component behavior is modeled mathematically using first principles and component characteristics. The developed components have been extensively verified & validated with actual hardware test data covering multiple test points in the flight envelope and also different failure modes of the system. The verification & validation methodology and the results of the component tests, is not the subject of the paper. The aero engine lubrication system is modeled by connecting the components drawn from the library to form a network consisting of nodes and flow paths. The solver implemented computes the unknown pressure and flow values in the lubrication circuit. The design environment has been used to perform steady state performance analysis of aero engine lubrication system. It has additional capability to perform parametric studies, trade studies, design exploration, analyzing simulation results and automated report generation, which will be described in the paper. The flexible software architecture and modular programming techniques has delivered the significant benefit of component models reuse. The generic nature of the toolbox can be exploited to perform system modeling and analysis of any hydraulic system.

Sign in / Sign up

Export Citation Format

Share Document