飞机载荷谱实测数据双缓冲视景仿真系统设计

飞机载荷谱实测数据视景仿真是飞机机动动作识别和实测数据有效性验证的重要手段.针对飞机实测数据源的不同数据结构,提出了逻辑数据通道的数据存储方法,解决了不同实测对象形成的不同数据源结构差异问题;针对大数据量实测数据进行飞行视景模拟时模型复杂性造成的性能问题,建立了物理通道和逻辑数据通道解析模型;基于数据双缓冲和绘图双缓冲机制,构建了飞行器模型和实测数据视景仿真系统环境,对不同试验用机的飞行实测数据进行了分析和验证.该视景系统完全满足Gigabyte级别的不同机型载荷谱飞行实测试验数据的验证和机动动作识别要求,完整地再现整个飞行历程,为飞机飞行历程机动动作识别、数据有效性验证和数据后期处理提供可视化平台.

Design of visual simulation system of aircraft flight load spectrum measured data based on double-buffering technology

Aircraft load spectrum measured data visual simulation is an important means to identify maneuver and to verify the validity of measured data in flight testing. A data storage method based on logical data channels was put forward to solve the structural differentiation problem of different data sources caused by different measured objects; for the performance problems caused by model complexity when large amount of measured data was used to simulate the whole flight course, physical channel and logical data channel analytical model were established; based on data double-buffering and drawing double-buffering mechanisms, flight model and visual simulation system environment of measured data were established, and the measured flight data of different testing aircrafts were analyzed and verified. The results show that the visual system meets the verification of flight measured data and the demand of maneuver recognition of GB level load spectrum of different types well, and can reproduce the entire course of the flight completely. It provides a visual platform to identify maneuver of flight course of aircraft, verify the data validity and post process of data.