Podcast
Questions and Answers
What are the two main aspects that technical risk level and schedule determine in the process of defining a mission?
What are the two main aspects that technical risk level and schedule determine in the process of defining a mission?
Technical aggressiveness and level of technical detail
During the development of mission concepts, what are the key factors to consider when determining the type of thrust required?
During the development of mission concepts, what are the key factors to consider when determining the type of thrust required?
The type of thrust required depends on the specific maneuvers needed for the mission. Low-thrust maneuvers are often used for longer duration missions, while high-thrust maneuvers are typically required for shorter duration missions.
What aspects of the vehicle system are included in the vehicle configuration?
What aspects of the vehicle system are included in the vehicle configuration?
The vehicle configuration encompasses the number of engines, their thrust levels, the size and mass of the vehicle, and conceptual ideas for the various subsystems.
How are feasible options ranked during the assessment of designs and configurations?
How are feasible options ranked during the assessment of designs and configurations?
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What are the two essential steps in the comparison and selection of the best design option?
What are the two essential steps in the comparison and selection of the best design option?
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The step of iterating and documenting requires documentation only when no iterations are needed.
The step of iterating and documenting requires documentation only when no iterations are needed.
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The iterations can only be done within the step they are related to, they cannot be backtracked.
The iterations can only be done within the step they are related to, they cannot be backtracked.
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Study Notes
Mission Requirements and Constraints
- Mission objectives are stated, including orbit, payload, and vehicle characteristics.
- Mission requirements and constraints are listed.
- Political, economic, and institutional factors are considered.
Evaluating and Selecting Systems
- Criteria for evaluating systems are developed.
- Quantitative and qualitative figures of merit are used to assess feasibility.
Developing Alternative Mission Concepts
- Past mission solutions (launch sites, orbits, maneuvers) are assessed.
- Low-thrust and high-thrust maneuvers are considered.
- Budgetary constraints (impulse budget) are taken into account.
Defining Vehicle System Technologies
- Vehicle performance parameters are defined.
- Vehicle configuration aspects like engines, thrust levels, size, mass are considered.
- Existing technologies (or "off-the-shelf" hardware) are reviewed.
- Past solutions and systems requirements are assessed.
Preliminary Design
- Preliminary designs for various systems are developed.
- Hardware applicability is assessed.
- System mass and configuration are estimated.
- Performance prediction and feasibility assessments are made.
Assessing Designs and Configurations
- Feasible options are ranked.
- The best system is chosen as a baseline.
Comparing and Choosing the Best Options
- Best system is selected.
Iterating and Documenting
- Iterations, or revisions, might be needed.
- Reasons for iterations are documented.
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Description
Explore the essential components of designing a space mission, including mission requirements, evaluating systems, and defining vehicle technologies. This quiz will guide you through the considerations needed for developing alternative mission concepts and preliminary design stages.
