Dynamic Modeling and Analysis of Airborne Towed Objects

Abstract

In some aviation application scenes,it is necessary to complete the specific missions of functional towed by aircrafts,such as airborne trailing submarine communication antenna. In these applications,the establishment of scientific models and methods to accurately analyze the steady and dynamic characteristics is a prerequisite to ensure the normal operation of the towed objects. Taking the airborne trailing submarine communication antenna as the example,the dynamic model considering aerodynamic force,inertia force,and elastic force of airborne antenna system is established and verified through published steady state results. The dynamic response of the antenna system under disturbance of aircraft unsteady motion and gust is studied,and the extreme conditions such as antenna fracture are evaluated. The results show that the established model has good analysis results of verticality and tension,which can be applied to the analysis of the steady and dynamic characteristics of air towed objects,and has a certain engineering value in the design of submarine communication antenna,refueling pipe and other systems.

Keywords

• towed object
• antenna
• dynamic characteristics
• modeling
• dynamic response