Aerodynamic‐thermal/structural design optimization of missile fin configuration during supersonic flight condition

Abstract

The main goal of this paper is to expand previously conducted study and consequently to upgrade the proposed multi-modular numerical environment developed for fluid-structure interaction simulation (FSI) and multidisciplinary design optimisation (MDO) purposes, in a manner that thermally induced structural responses in a current study are taken into consideration. The present study concerns with a broader observation of critical multi-point flight conditions and represents a more realistic scenario which presents one contribution more in a scope of fluid-thermal-structure interaction (FTSI) numerical modelling and optimisation. This means that thermo-mechanical effects of the missile fin structure are observed and implemented into established numerical environment. Numerical modelling of FSI/FTSI and MDO within an industry-accepted design tool was resulted in powerful monolithic environment which with adopted multi-point regimes and multi-criteria settings is used for aerodynamic-thermal/structural optimisation. The multidisciplinary shape optimisation, with respect to predefined objectives and constrains, was carried out in order to achieve global improvement of missile initial aerodynamic and to prevent aerothermally-induced critical responses of the fin configuration.

Facilitating learning adaptive V-tail of a supersonic missile for radar cross-section reduction during interval flight

“…The experimental Mach number parameters are set between 2.15 and 3.83, and the pressure distribution, surface streamline and impact analysis of the missile are carried out [ 13 ]. Hypersonic motion causes ionization of the air around the missile to form a plasma sheath, which changes its electromagnetic scattering characteristics [ 14 , 15 ]. Rapid flight makes the missile leap a long distance in a short time, which may cause a wide range of azimuth changes, while hypersonic flight will bring plasma stealth problems.…”