A TRADE OF STUDY FOR THE STRUCTURE OF THE CALLISTO VEHICLE EQUIPMENT BAY
2021
During the preliminary design of the Vehicle
Equipment Bay (VEB), a section of the CALLISTO
experimental launcher, three structural concepts
emerged. This paper gives an insight into the trade
of study, leading to a consolidated concept for
detailed design.
The different concepts of accommodation are
described. From a mechanical standpoint, structural
analyses for strength, stability and stiffness are
presented. The VEB is loaded by aerodynamic
forces acting on the fins (the aerodynamic control
system FCS/A), longitudinal loads from the Nose
Fairing, acceleration loads on equipment unit’s and
ground load cases (handling for verticalization and
lifting of the vehicle). Based on simplified
assumptions, each concept is sized to obtain a
feasible design. The resulting masses and
amplifications are compared and used for the trade
of study. Furthermore, the evaluation of the
concepts from an Assembly, Integration and Test
(AIT) point of view (demonstrate feasibility of
mounting/dismounting of equipment’s, access to
screw connectors and equipment screws,
accessibility, harness length, growth potential), from
a Maintenance and Refurbishment Operations
(MRO) standpoint (access to batteries, specific
access to some critical items) and from a safety
point of view (position and segregation of the safety
chains) is presented. The results are sorted and
compared in a trade of table.
The final design again is checked for feasibility and
key performance values like mass and stiffness. An
outlook is given on the impact of certain unit
requirements like e.g. a horizontal integration.
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
0
References
0
Citations
NaN
KQI