发动机冷却系统电脑辅助设计-

1、1 212 Fortran pusher fan puller fan viscous drive Visual Basic Access 2000 (module 9308 16 9309 27 9310 0593 24(1 21-32Computer Aided Engineering of EngineCooling SystemS. Chung Tzeng 1 K. David Huang 21 Department of Mechanical Engineering, Chienkuo TechnologyUniversity of, Changhua 500, Taiwan, R.

2、 O. C2Graduate School of the Vehicular Engineering, Dayeh University,Changhua 500, Taiwan, R. O. CAbstractIn this work, after studying various engine cooling systems and their components, a computer aided engineering (CAE software has been developed to assist engine cooling system engineers in the d

3、esign of the system and the selection of components. The mathematical model of the software is written in Fortran language and has no limitations on number, size and combination of various heat exchangers. The fan model, which includes the viscous drive function can handle both puller and pusher fan

4、s. The database function is implemented in the Access 2000. Every component has its own module and performance database. The graphical user interface of the mathematical model and the database is written in Visual Basic language and designed very user-friendly. Since this CAE program is specifically

5、 good for Taiwans medium-small business environment, the success of the project will promote the design and development capability of vehicle components in Taiwan.Key words: Computer aided engineering, CAE, Engine cooling system, Knowledge based engineering, KBECAE (WTO CAE a. b. c. d.e. 1-D flow ne

6、twork 1 2 3-D l-D flow network 3 3-D CFD model 3-6 Cray YMP 2-3 4 " "CAE l-D CAE l-D flow network 1 1 1P 2P 3P 3 3P ( STP (Standard Temperature & Pressure (Radiator ATD (Average Temperature Difference (oil cooler ETD(Entering Temperature Difference Radiator oil cooler , 5 5 2 sucker fa

7、n sucker fan 6 radiator 7 8 3 4Visual Basic 5 CAE 5 1. 6 2. 7 3. 8 4. 9 Fan Viscous Drive 10 11 12 13 14 15 CAE Access Visual Basic 1. 2. 3. 4. 5. 6. 7. VB : 1-D : PC knowledge based engineering CAE 1. J. Hager and M. Raup, “KULI Version 3: Simulation of Cooling Systems,” Technologie Zentrum Steyr,

8、August 26, 1996.2. Sami D. Habchi and Simon Y. Ho, “Airflow and Thermal Analysis of Underhood Engine Enclosures,” SAE Technical Paper Series 940316, 1994.3. K. D. Huang and S. C. Tzeng, “Optimization of size of vehicle and flow domain for underhood airflow simulation,” Proceedings of the I MECH E Pa

9、rt D, Journal of Automobile Engineering, V ol. 218, No. 9, pp.945- 951, 2004.4. J. E. Williams, J. W. Oler, J. E. Hackett and L Hammer, “Automotive Underhood Airflow Patterns,” Automotive Technology International, 1992.5. K. David Huang, "Fundamentals of Engine Cooling System Design," Engi

10、ne Cooling System Design Training I material, Case Corporation, May 16, 1996.6. K. David Huang, "PC-Cool and Engine Cooling Network,” Engine Cooling System Design Training material, Case Corporation, May 17, 1996.7. Al Kargilis, “Design & Development of Engine Cooling Systems,” SAE University Consortium for Continuing Education, 1993.8. Daniel J. Bosch and John D. Real, “Truck Systems Design Handbook Heavy Truck Cooling System,” SAE, 1992. 1 S:suc