Control of the Experimental Model and the Data Acquisition System in ALFLEX Dynamic Wind Tunnel Tests.

摘要

Dynamic wind tunnel tests have been conducted at the National Aerospace Laboratory (NAL) since 1989, while the Automatic Landing FLight Experiment (ALFLEX) was being planned to develop an automatic landing technique. Prior to flight experiments, dynamic wind tunnel tests were conducted using a 40% ALFLEX scale model in order to evaluate the performance of the ALFLEX control system and to determine aerodynamic parameters. During the tests, control surface deflection commands were sent to the model and measured data were transmitted to an external computer and stored. This paper describes the control and data acquisition functions and algorithms developed for the dynamic wind tunnel tests.