Test and Analytic model results correlation for Deployable Trusswork Mast

Paper number

IAC-18,C2,2,9,x45799

Author

Mr. Cristovao Cardoso, Portugal, Hps-high Performance Structures, Lda

Coauthor

Mr. Pedro Teixeira, Portugal, Hps-high Performance Structures, Lda

Coauthor

Mr. Joao Pedro Loureiro, Portugal, Hps-high Performance Structures, Lda

Coauthor

Mr. Ivo Costa, Portugal, Hps-high Performance Structures, Lda

Coauthor

Mr. Luis Moreira, Portugal, INEGI

Coauthor

Mr. Jhonny Rodrigues, Portugal, INEGI

Coauthor

Mr. Clifford Ashcroft, The Netherlands

Coauthor

Mr. Ludovic Puig, The Netherlands, ESA

Year

2018

Abstract

Under the ESA activity for Large Stable Deployable Structures for Future Science Missions (LADS), HPS is developing a deployable mast for X-Ray telescope, 12m long, 4m wide, to hold the 1ton instrument, to reach TRL 5 (deployment mechanism not included).

An analytic model was developed to calculate the mast: deployment error, friction error, thermal expansion deformation, moisture absorption deformation, bending stiffness, shear stiffness, torsion stiffness, limit loads, mass, etc.

Material and elementary tests are now being finalized. The results from these tests will be used as inputs in the analytic model.

A 2m long breadboard, composed of 2 bays was built and will be tested during March and April. These tests will measure: deployment error, friction error, bending + shear stiffness, torsion stiffness, mast mass and mast damping.

This paper will present and correlate the predictions made with the analytic model and the measurements made on the 2 bays breadboard.

Abstract document

IAC-18,C2,2,9,x45799.brief.pdf

Manuscript document

(absent)