Integrated and Multi-fidelity Software Package for Aero- Servo-Thermo-Elasticity and Propulsion (ASTE-P) of Aerospace Vehicles from Subsonic to Hypersonic Flight

摘要

Advanced Dynamics has developed an Integrated Variable-Fidelity Tool Set - ASTE-P for Modeling and Simulation of Aero-Servo-Thermo-Elasticity and Propulsion (ASTE-P) of Aerospace Vehicles Ranging from Subsonic to Hypersonic Flights. The ASTE-P software tool set is developed in the state-of-the-art and commercial standard and enables accurate integration and tight/loose coupling of the fluid, structural and control field simulation with variable fidelity options available. The ASTE-P software tool can be applicable to modeling and simulation of aerodynamics, structural dynamics, flight control and propulsion dynamics as well as more important interactions of these dynamics. AH flight regimes from subsonic to hypersonic are covered. The interface of structural/control surface motion and vibration modes with fluid flows is modeled using either unified particle-based methods (MPM/PPM) or FVM/FEM based tight/loose coupled fluid/structure solving algorithms. The Euler/RANS/LES/DES solvers enable the accurate prediction of nonlinear coupled fluid-structure problems in aeroelasticity and the embedded fluid and structural dynamics solvers make the software self-contained and not require the integration of two separate third-party fluid and structure solvers for aeroelastic modeling and simulation. Three levels of simulation environments are included in ASTE-P tool set: (1) the bottom level of high-fidelity and full-order simulation environment, (2) middle level of fast analysis and evaluation environment which is based upon reduced order models (ROM) and provides fast turn around time, and (3) top level of rapid design and optimization environment. In several our previous AIAA papers we have reported the integrated framework of ASTE-P and some validation cases, and in this paper we will update the status and enhancement of the ASTE-P recently, and present some new cases we have run to demonstrate that the functionalities of ASTE-P are compatible or even more efficient than the similar software that is currently available.