Title :
Rapid prediction of star propellant grain regression using CAD software
Author :
Qazi, Mateenuddin ; Masood, Khayyam ; Mahmood, Khurram
Author_Institution :
Nat. Eng. & Sci. Comm., Islamabad, Pakistan
Abstract :
This paper describes a fast technique for simulating the evolution of the burning surface of a star shaped propellant grain. This burn analysis is fully automated using the features of commercial computer-aided-design (CAD) program. Propellant surface burnback is simulated using feature offset capability. Analytical or computational expressions are not used for propellant grain regression, resulting in visual and straight forward simpler solution. Application Programming Interface (API) of CAD software is fully tapped to automate and allows the user to visualize and readily obtain plots of burn area, burn volume, moments of inertia, motion of center of gravity and other geometric data as a function of burning distance. This enables an efficient geometric tool to be used for describing the propellant grain geometry for grain design, internal flow and structural analysis.
Keywords :
CAD; application program interfaces; mechanical engineering computing; propellants; regression analysis; CAD software; application programming interface; burn analysis; burning distance; computer-aided-design; rapid prediction; star propellant grain regression; Computational modeling; Design automation; Geometry; Propulsion; Solid modeling;
Conference_Titel :
Applied Sciences and Technology (IBCAST), 2009 6th International Bhurban Conference on
Conference_Location :
Islamabad
Print_ISBN :
978-1-4244-8650-2
Electronic_ISBN :
978-969-8741-07-5