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مریم شمسا محمدرضا گلبهار حقیقی پرویز ملک زاده

چکیده

در این مقاله پارامترهای مکانی و شدت منبع حرارتی نقطه¬ای و گستردۀ متغیر با زمان برای یک ورق مستطیلی مدرج تابعی به‌وسیلۀ الگوریتم معکوس برمبنای روش گرادیان مزدوج تخمین زده خواهد شد. این کار به‌وسیلۀ اندازه‌گیری دما روی مرزهای ورق انجام می‌گیرد. فرض بر این است که هیچ اطلاع اولیه¬ای از مکان منبع و تابع شدت منبع حرارتی در دسترس نیست، بنابراین روند تخمین با یک حدس اولیۀ دلخواه آغاز می‌گردد. برای گسسته‌سازی معادلات حاکم از روش اجزامحدود برای مشتقات مکانی و روش کرنک نیکلسون برای گسسته‌سازی مشتقات زمانی استفاده گردیده است. در این مقاله برای اولین‌‌بار به تخمین هم‌زمان مکان و شدت منبع حرارتی در ورق مدرج تابعی، پرداخته شده است. علاوه‌بر‌این در تخمین منبع حرارتی، هم منبع نقطه‌ای و هم منبع گسترده مورد بررسی قرار گرفته¬اند.

جزئیات مقاله

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ارجاع به مقاله
شمسام., گلبهار حقیقیم., & ملک زادهپ. (۱۳۹۷-۰۴-۳۱). تخمین هم‌زمان مکان و شدت منبع حرارتی در ورق مدرج تابعی به‌وسیلۀ حل معکوس. علوم کاربردی و محاسباتی در مکانیک, 29(2), 71-88. https://doi.org/10.22067/fum-mech.v29i2.61392
نوع مقاله
علمی پژوهشی