EXPERIMENTAL IN-FLIGHT MODAL-ANALYSIS OF A SOUNDING ROCKET STRUCTURE

被引：0

作者：

Gierse, Andreas ^{[1
]}

Kraemer, Stefan ^{[2
]}

Daab, Dominique J. ^{[2
]}

Hessel, Joana ^{[2
]}

Baader, Fabian ^{[2
]}

Mueller, Brigitte S. ^{[2
]}

Wagner, Tobias ^{[2
]}

Gdalewitsch, Georg ^{[2
]}

Plescher, Engelbert ^{[2
]}

Pfuetzenreuter, Lysan ^{[3
]}

机构：

[1] ZARM Fallturm Betriebsgesell mbH Fallturm, D-28359 Bremen, Germany

[2] FH Aachen FB6, D-52064 Aachen, Germany

[3] DLR German Aerosp Ctr, Space Adm, D-53227 Bonn, Germany

来源：

PROCEEDINGS OF THE 21ST ESA SYMPOSIUM ON EUROPEAN ROCKET & BALLOON PROGRAMMES AND RESEARCH | 2013年 / 721卷

关键词：

D O I：

暂无

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

Knowledge of the dynamic mechanical characteristics of a microgravity platform together with data of the dynamic loads while flight, enables its further development. Benefits are the possible weight reduction of the platform structure and an improved mu-g quality due to vibration control and purposeful decoupling. Within the framework of the Adios student experiment a new type of measurement system for in-flight modal analysis was developed and tested. Aim of this setup was the in-flight validation of the system and the validation of a FEM Model of the REXUS 11 rocket. The achieved Signal-to-Noise-Ratio was sufficient for data analysis. Beside the determined resonance frequencies of the rocket structure several events like motor separation and pyro firings of other experiments were measured. Furthermore the resolution of the measured, low frequency, mechanical stress was higher than anticipated. Based on these results a further development of the measurement system seems worth the effort.

引用

页码：341 / 346

页数：6

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