کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1717389 1520031 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimization of system parameters for gas-generator engines
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی هوافضا
پیش نمایش صفحه اول مقاله
Optimization of system parameters for gas-generator engines
چکیده انگلیسی

For this paper, software to optimize the system parameters for gas-generator cycle engines was developed. The gas-generator cycle engine was decomposed into several principal components, such as the thruster chamber, turbopumps and gas generators. Numerical simulation codes were developed for each component and the system. According to the different relationships within the components, these modularized codes could be integrated arbitrarily. A generic optimization procedure of system parameters for the gas-generator cycle engine was developed. According to the design mission, optimal engine system parameters could be decided for different components assembling forms by using this procedure. One hybrid algorithm, which combined the genetic algorithm with gradient-based algorithm, was utilized during optimization procedure to increase the globality of the optimization exploration. Several traditional multi-objective methods, such as changing weight method, e-constraint method, and neighborhood cultivation genetic algorithm were used to obtain the Pareto frontier solutions. Physical programming method and fuzzy related degree method were used to obtain optimal design based on preference of the designer. Comparative results presented show the impact of different methods on the design variables and objectives.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Astronautica - Volume 59, Issues 1–5, July–September 2006, Pages 246–252
نویسندگان
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