کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4993000 | 1457473 | 2017 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of actively managed thermal-loading in optimal design of an aeroengine turbine disk
ترجمه فارسی عنوان
اثر بارگیری حرارتی فعال در طراحی مطلوب دیسک توربین هواپیما
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کلمات کلیدی
دیسک توربین، بارگذاری حرارتی، مدیریت فعال، طراحی بهینه سازی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
The effect of actively managed thermal loading for optimal design of turbine disk was investigated to seek the better balance between strength demand and minimum weight/volume. An integrated process of design was developed to achieve automatic iteration for this multi-objective optimization problem. Under equal consumption of heating energy and cooling air conditions, two types of actively managed thermal loading with different allocation ratios of heating energy (ÏÂ =Â 0.1 and ÏÂ =Â 0.2) in the outer and inner surface of disk were considered in the process of optimization. As a comparison, the disk at conventional thermal loading conditions (ÏÂ =Â 0) was also optimized at the same design conditions. Results showed that the better structure of disk with smaller weight/volume and lower maximum stress level was obtained due to thermal loading management. Through actively managing the thermal loading to reorganize the temperature distribution of disk, the optimized weight/volume and maximum hub stress fallen 2.24% and 12.16% respectively to compare with the conventional thermal loading condition. The reason for the preceding effect could be explained that an artificial V-shaped temperature distribution was built in the disk through actively managing thermal loading, and correspondingly, the reverse temperature gradient between hub and web produced a pulling effect and counteracted parts of stress from rotating.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Communications in Heat and Mass Transfer - Volume 81, February 2017, Pages 257-268
Journal: International Communications in Heat and Mass Transfer - Volume 81, February 2017, Pages 257-268
نویسندگان
Guo Li, Shuiting Ding, Mengyao Bao, Hexing Sun,