Status and Challenges of Digital Modeling for Typical Aircraft Control Objects

Abstract

As a core segment of national high-end manufacturing, the aviation industry relies heavily on aircraft control components that directly determine flight safety and handling performance. Digital modeling has become a mainstream technical approach for developing aviation equipment. Taking typical control components such as steering gears and flight control actuators as research objects, this paper sorts out their multi-domain structural features and coupling mechanisms across mechanical, hydraulic and electrical fields, laying a theoretical foundation for modeling. To address the accuracy limitations of traditional single-domain modeling, this paper explores approaches to balancing model complexity and simulation fidelity, develops multi-system coupled digital models, and performs simulation tests. By comparing simulated outputs with actual operating condition data, this paper analyzes the causes of deviations between them. Finally, various technical bottlenecks existing in current digital modeling and simulation are summarized. The research results indicate that integrating digital twin architecture with model-driven design can effectively mitigate insufficient accuracy in single-domain modeling. Nevertheless, prominent technical obstacles remain in accurately depicting multi-physics dynamic coupling and establishing standardized model verification that covers full operating conditions. The conclusions of this research can provide clear ideas and references for optimizing multi-domain coupled modeling of aircraft and the digital development of flight control equipment.