last updated 8/22/2017 15:11

ASEN 5158

Fall 2017
Tuesday/Thursday 2:00-3:15
Room ECCR 1B51

Distance Learning via


Instructor: Prof. David Klaus

telephone: (303) 492-3525



Course Objectives 

Utilize systems engineering methods to design and analyze a spacecraft intended for human occupancy and provide a functional knowledge of the technologies used to sustain life. Emphasis is placed on deriving requirements from stated mission goals and objectives, developing integrated functional schematics into a conceptual design, and comparing design options by trade study and mass estimation.


Human Spaceflight Mission Analysis and Design, eds. Larson and Pranke, McGraw-Hill, 2007

Topics (subject to minor revision)

Introduction to Human Spaceflight – Ch 1

Human Space Mission Objectives – Ch 2

Space Environments – Orbit, Planets and NEO’s – Ch 3, 4

Human Physiology – Ch 5

Ergonomics, Human Factors and Psychology – Ch 6, 7


Exam 1 ~ based on Requirement Drivers


Systems Engineering Terminology, Definitions and Acronyms

Design Phases

Deriving Requirements and Constraints

Ground Rules and Assumptions


Functional Decomposition

Minimum Functionality Design Approach – Physics & Physiology

Trade Space Analysis – Safety & Operability


Defining and Sizing Spacecraft Elements – Ch 11, 12, 13

‘Human in the Loop’ Design Drivers

Determining Habitable Volume


Environmental Control & Life Support Subsystem (ECLSS) and Enabling Technologies – Ch 17

Atmosphere Management

Water Management

Food Supply

Waste Processing

Crew and Payload Accommodations (CA / PA) – Ch 18

Spacesuits and Extravehicular Activity (EVA) – Ch 22


Exam 2 ~ based on Design Process


Risk Management – Ch 8

Hazard Identification and Analysis

Failure Mode Effects Analysis (FMEA)

Mean Time Between Failure (MTBF)

Probabilistic Risk Assessment (PRA)

Risk Mitigation Strategies (redundancy, reliability, FOS, margins, DFMR)


Integration and Interfaces summarized for the following remaining spacecraft subsystems

Orbit Selection – Ch 9

Entry / Descent/ Landing / Ascent – Ch 10

Structures – Ch 21

Command, Control and Communication (C3) – Ch 27

ADCS / GNC – Ch 19

Power – Ch 20

Thermal Control – Ch 16

in situ Resource Utilization (ISRU) – Ch 15

Spacecraft Propulsion – Ch 24

Launch / Transfer Systems – Ch 25


Design Validation / Manufacturability / Operations


Requirement Compliance Verification


Final ~ Group Project Report and Presentation



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