Civil Engineering Reference
In-Depth Information
Chapter 1
Literature Review
Abstract The purpose of this chapter is to review several basic concepts from the
areas of satellite design. It begins with defining the basic phases of structural
design. Then a literature review of the categories of structures is presented. This is
followed by a literature review of some previous satellite structural designs.
Conventional spacecraft design methods and materials are included. Finally, the
literature review chapter is concluded with a review of research on structural
optimization methods.
1.1 Structural Design Phases
Structural design consists of three phases: conceptual design, preliminary design,
and detailed design.
Conceptual design is the phase of establishing feasibility and estimate cost and
risk for one or more spacecraft configurations or sets of derived requirements to
support system trade studies or proposals. It also contains deriving requirements,
identifying candidate types of structures, materials, and attachments. Finally, it
develops the designs far enough to estimate and compare weight, cost, and risk;
and select from options.
Preliminary design is the time for looking closer at the winning candidates and
identifying the best arrangement, shape, and sizes of structural members. During
this phase, types and forms of materials are selected; and design of attachments is
also developed. Finally, it includes the beginning of manufacturing plan, and
development of testing.
Detailed design is the time for final dimensions and manufacturing tolerances,
identifying fastener sizes and installation torques, designing tertiary structures
such
as
cable-support
brackets,
and
doing
all
analyses
necessary
to
justify
