Space Mission Structures Training Part I

Space Mission Structures Training Part I

Introduction:

Space Mission Structures Training Part I Course Description

This 3-day Space Mission Structures Training Part I presents the structure for a space or launch vehicle as a system. Originally based on the instructor’s book, Spacecraft Structures and Mechanisms: From Concept to Launch, this course has evolved and been improved continuously since 1995.

If you are an engineer involved in any aspect of spacecraft or launch-vehicle structures, regardless of your level of experience, you will benefit from this course. Subjects include functions, requirements, environments, stress analysis, fracture mechanics, finite element analysis, configuration development, preliminary design, designing to avoid problems with dynamic loads, improving the loads-cycle process, verification planning, quality assurance, testing, and risk assessment.

Space Mission Structures Training Part IRelated Courses:

Duration:3 days

Skills Gained:

The objectives are to a systems perspective of space-mission structures and improve your understanding of …

Structural functions, requirements, and environments
How structures behave and how they fail
How to develop structures that are cost-effective and dependable for space missions

Customize It:

With onsite Training, courses can be scheduled on a date that is convenient for you, and because they can be scheduled at your location, you don’t incur travel costs and students won’t be away from home. Onsite classes can also be tailored to meet your needs. You might shorten a 5-day class into a 3-day class, or combine portions of several related courses into a single course, or have the instructor vary the emphasis of topics depending on your staff’s and site’s requirements.

Course Content:

Overview of Space Mission Structures

Structural functions and requirements
Effects of the space environment
Everything made of solid materials is a structure
How launch affects things structurally
Dispelling some myths
Top-level criteria for strength analysis
Understanding verification
Relating verification to requirements

Launch Environments and How Structures Respond

Overview of the mechanics of vibration
Breaking down the launch environment
Quasi-static loads
Transient loads and coupled loads analysis
Sinusoidal vibration
Acoustics
Random vibration
Mass/acceleration curves
Pyrotechnic shock

Assessing Structural Integrity: Stress Analysis

Stress and strain
Accounting for strength variation
What it means to assess structural integrity
Government standards for test options and factors of safety
Understanding stress analysis and its dependence on test
An effective process for strength analysis
Common pitfalls and case histories
Fatigue and fracture mechanics
Fracture control
Structural design criteria

Overview of Finite Element Analysis

Idealizing structures
Introduction to FEA and stiffness matrices
Effective use of FEA
Quality assurance for FEA

Configuration Development and Preliminary Structural Design

A process for preliminary design
Configuring a spacecraft
Types of structures and forms of construction
Materials
Methods of attachment
Reducing cost by reducing the number of parts
Designing an adaptable structure
Using analysis to design efficient structures (truss example)
Providing direct load paths
Estimating weight and managing weight growth

Improving the Loads-Cycle Process

The traditional loads-cycle process with coupled loads analysis (CLA)
Ideas for improving the loads-cycle process
Managing payload math models
Integrating stress analysis with CLA
Potentially eliminating the need for mission-specific CLA for launch of small spacecraft
Sensitivity analysis for large spacecraft

Verification and Quality Assurance

Whose job is this?
Attending to details
Controlling the configuration
Proactive verification
Verification methods and logic
Philosophies for product inspection
Establishing a test program
Designing an effective test
Documenting and presenting verification

A Case Study: The FalconSat-2 Small Satellite

Overview of the FalconSat program
Approach to structural design and verification
Testing the engineering model
Designing the flight structure
Qualification and acceptance testing
Launch (and FalconSat-2 today)
Process changes for FalconSat-3
Conclusions

Final Verification and Risk Assessment

Overview of final verification
Addressing late-arising loads problems
What does it mean to “understand” a risk?
Hypothetical example: Negative margin of safety
Making the launch decision

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Time Frame: 0-3 Months4-12 Months

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