ASTE-P: Integrated and Multi-fidelity Modeling and Simulation Tool for Aero-structure and Propulsion Dynamics of Aerospace Vehicles

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 dynam ics as well as more important interactions of these dynamics. AH flight regimes from subson ic to hypersonic are covered. The interface of structural/control surface motion and vibra tion 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 and RANS based 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 simula tion 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 environ ment which is based upon reduced order models (ROM) and provides fast turn-around time, and (3) top level of rapid design and optimization environment. This paper provides the comprehensive validation and verification (V&V) of ASTE-P toolset recently done at Ad vanced Dynamics which resulted in over 600 pages report for over 40 benchmark test exam ples that were selected from industry and academic research and design. The validation cas es presented in this paper indicate that the capability of ASTE-P is compatible or even more powerful than the similar software that is currently available.