Aeroelastic experiments with measurement of the kinematic properties based on optical methods

0445722 - ÚT 2016 RIV CZ eng J - Journal Article
Chládek, Štěpán - Zolotarev, Igor
Aeroelastic experiments with measurement of the kinematic properties based on optical methods.
ACC JOURNAL. Roč. 21, č. 1 (2015), s. 43-53. ISSN 1803-9782
R&D Projects: GA ČR GA13-10527S
Institutional support: RVO:61388998
Keywords : aeroelasticity * optical measurements * vibration frequencies * kinematic properties * profile in the wind tunnel
Subject RIV: BI - Acoustics

A credible aeroelastic experiment deals with variables important for the description of dynamics of aeroelastic phenomena. These variables include, in particular, position, velocity, acceleration and the acting forces. This paper describes the measurement of kinematic properties based on an optical method, where the optical target is captured with a high frequency camera. Based on the evaluated position, there have been derived velocity and acceleration. The acceleration has been compared with the data measured with the accelerometer. A great advantage of the presented approach is the minimal influence of the measured system over the sensors and the possibility of redundant measurement as well. The contribution of the redundant measurement has been confirmed during an experiment performed on an aeroelastic experimental stand with the profile NACA 0012.
Permanent Link: http://hdl.handle.net/11104/0247840