飞机软道面安全拦阻系统建模与仿真

飞机在起飞或降落时,如果冲出跑道,拦阻系统能够有效地将飞机拦停,避免对飞机和乘客造成伤害.飞机安全拦阻系统是机场正常工作的重要保障设施.基于此设计了一种新的软道面(soft ground)安全拦阻系统(arresting system),该系统具有结构简单、可靠性高、机动性大、通用程度高等特点.结合飞机六自由度模型和精确的阻力模型,建立了系统的数学模型.此模型能够仿真拦阻系统的工作过程,通过仿真得到拦停距离和起落架载荷等重要参数.与国外真实试验结果进行比较,仿真结果验证了该系统模型的有效性,表明该方法在新机场的建设和现有机场改造中具有广阔的应用前景.

Modeling and simulation of soft ground arresting system for aircraft

The arresting system stops the aircraft effectively when the aircraft passes beyond the end of the runway during an aborted takeoff or landing which minimizes the damage to the aircraft and the passengers. The arresting system is a kind of important safety facility for airports. Based on this, a new kind of soft ground arresting system was designed which has simple structure, high reliability, large maneuverability and outstanding generality. Combined with the aircraft 6-dof model and accurate resistance model, the soft ground arresting system mathematical model was built to analyze the process of arresting system. The system model was used to simulate the working process of the arresting system. Lots of important parameters, such as stopping distance and landing gear load were obtained. Compared with the experiments done in foreign countries, the simulation results were proved effective, which could be widely used in the construction and reconstruction of the airports.