Environmental forces, whether natural or induced, produce mechanical and thermal loading on the launch vehicle and spacecraft. Early in the development of any
launch vehicle or spacecraft, these loads must be estimated and incorporated into
the design, analysis and test programs.
Environmental specifications are the basis
for test levels which are used to verify the design and workmanship of a spacecraft.
The course provides participants with the necessary background and tools
to produce a set of environmental specifications and test levels for a spacecraft
program.
Emphasis is on how to progress from the measurement or analytical
estimation of the launch or on-orbit environment to a specification that can be
incorporated into the spacecraft test verification program. The course is also ideal for managers and system engineers wishing to gain a good understanding of how spacecraft environments and resulting requirements creep can impact their program risk.
PDF files of the course slides are provided. Hyperlinks are embedded in the course slides which link to the related reference material or to outside web resources.
Course Contents
1. Introduction & Outline
2. Environmental Loads and Sources
Discussion of all processing & flight events that have the possibility of producing environmental loads for either the launch vehicle, spacecraft, subsystems or components
3. Spacecraft Environmental Test Criteria and Standards Detailed discussion of Military, NASA, European Space Agency & Launch Vehicle Standards and documentation
4. Thermal Environments Sources of thermal loads during ground operations, launch, ascent and on-orbit as well as thermal model temperature predictions , test levels and methods
5. Pressure Venting Environments
Pressure decay during ascent , an overview of pressure differential analysis & discussion of pressure profile testing
6. Acoustic Environments Sources of acoustic loads, flight data measurement & processing, derivation of test levels & duration, test methods & facilities
7. Acceleration Loads & Environments
Sources of acceleration loads, flight data measurement & processing, derivation of test levels, test methods and facilities
8. Vibration Environments Sources of vibration loads, flight data measurement & processing, derivation of component & system test levels & durations, test methods & facilities
9. Shock Environments Sources of shock loads, flight data measurement & processing, derivation of test levels , assessment of shock severity & component sensitivity, test methods & facilities
10. Additional Considerations Environmental Requirements Documents, Conservatism vs. cost & schedule, organizational interactions
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