Novel Test Techniques for Lightweight and Thermally Stable Structures
Abstract
For the first environmental tests program on the engineering model of a highly stable top deck multi- beam antenna for Ka-/Q/V-Band applications, developed by HPS, the test means for thermal distortion measurements at IABG had to be specifically adapted and qualified. This opportunity also was used to study other sensor technologies not yet in use for routine environmental space tests. In summary, the objectives of introducing new test and measurement technologies were:
- to respond adequately to the needed high resolution of small thermo-elastic distortions in standard thermal cycling tests by using Electronic Speckle Pattern Interferometry (ESPI) - to use Fibre Bragg Grating (FBG) sensor technologies for measuring surface temperatures and structural strains - to apply 3-dimensional laser vibrometry in acoustic environment. In this paper, an overview on the application of these novel test techniques is presented and the benefit of using such techniques is discussed.- Publication:
-
12th European Conference on Spacecraft Structures, Materials and Environmental Testing
- Pub Date:
- July 2012
- Bibcode:
- 2012ESASP.691E.129G