سال انتشار: ۱۳۸۸

محل انتشار: هشتمین همایش انجمن هوافضای ایران

تعداد صفحات: ۷

نویسنده(ها):

Mohammad Ali Sharifi – Faculty of Engineering, University of Tehran, Iran
Meysam Mahooti – Faculty of Engineering, University of Tehran, Iran

چکیده:

Multi-step integrators can be classified either as single or double integrators. The single integrators are designed for first-order differential equations whereas the double integrators solve second-order differential equations and calculate position of the satellite directly from its acceleration. When force model include drag effect, we also need satellite’s velocity. Therefore, single integrators are required. The most popular single integrators are Adams-Bashforth-Moulton and Shampine-Gordon which the former is a multi step fixed step-size technique and the latter is a multi step variable step-size technique. Our numerical results illustrate the Shampine-Gordon method is more stable than the Adams-Bashforth-Moulton method.