Aerospace System Flashcards
quizzes quesions (154 cards)
What’s the definition of a
system?
Its a set, assembled from a number of sub-systems
or individual components, capable of treating
physical matter , energy or information in order to
meet a specific purpose.
What’s the definition of systems
engineering?
Systems engineering is a holistic, interdisciplinary
management process aimed at evolving system
solutions to satisfy consumer/user needs.
What is the Pyramid of Systems
Hierarchy?
A visual pyramid diagram describing how systems
are created.
An ‘enterprise’ at the top
‘Systems of systems’ near the top
‘System’ in the middle
‘Components/subsystems’ at the bottom
Name some factors which
influence the development of
systems engineering:
1.) Advancement in technology: Creates new
opportunities but also induces more development
risk
2.) Competition: Drives seeking superior solutions,
often at trade offs too.
3.) Specialization: Requires breaking a system into
components corresponding to user needs.
Name any two principles of
systems thinking:
Hierarchy, viability, completeness, emergence,
boundary, holism
Name any two systems
engineering problem solving
steps:
1.) Understand the problem context
2.) Identify and understand the problem
3.) Generate potential solution options
4.) Implement the chosen solution
5.) Review the success of said system
Name all four elements that
make the ‘’ Structure of
Systems Engineering’’ :
S.E Management (planning / organization )
Requirements and architecture definition
Development of sub-systems
System integration and verification
What is the 1. Lifecycle 2.
Lifecycle stage and 3. Lifecycle
process?
- Lifecycle : Evolution of a system through time.
From concept to disposal entirely. - Lifecycle stage : An identified objective within the
systems life, used to manage resources and
activities of a project. - Lifecycle process : A sequence of tasks needed
to achieve a defined goal WITHIN a lifecycle phase.
Name any generic process
model.
Waterfall model
v- model
Spiral model
Spiral to circle model
What is the difference between
Process order and Process
dependency , when applied to
a lifecycle model?
Process order = The order processes must occur
when designing a successful system
Process dependency = What a process depends on
for its design
What are the process
interdependencies contained
within the ‘ V ‘ Model?
(user testing) Requirements and concepts <—–> Demonstration
and validation.
(system testing) Architecture and specification <— > Integration and
verification.
(Integration system)Design <——> Testing
Discuss the difference between
a lifecycle stage and lifecycle
process
A stage is an identified objective within the lifecycle,
whilst a process contains the sequence of tasks
needed to reach a goal, within a lifecycle stage.
Discuss the difference between
a technical process and a
project process
Technical processes relate to the application of
system problem solving, whilst project processes
ensure viability of a lifecycle stage.
Discuss the difference between
a lifecycle model and a project
A lifecycle model aims to deal with problems which
affect the lifecycle , whilst a project is the
overarching idea and work needed to achieve
everything.
What is the relationship
between system levels and
project relationships.
System levels show the connected order of system
design, and project relationships are used to define
these system levels
What is ‘’ System design
methodology’’
Its a path needed to achieve 3 primary objectives :
1.) Initiation of creative processes for achieving
novel and innovative solutions of lasting relevance
2.) Envisage all necessary system design elements
3.) Assurance that design has appropriate
consequences on the environment and society
throughout its lifecycle
Name any two types of
Customer needs:
Direct needs
Latent needs
Constant needs
Variable needs
General needs
Niche needs
What represents the ‘’ House of
Quality ‘’?
A ‘ product planning matrix’ which shows how
customer requirements relate to ways /methods
designers can achieve those requirements.
What types of system
architecture can we
recognize?
Integral type : Each tool performs one task
Modular: Architecture contains sub-structures which
correspond to subsets of the system functional
model.
Name any two methods used
for concept design?
Brain storming
Brain ball method
C-Sketch/ 6-3-5 method
TRIZ ( Theory of inventive problem solving )
Morphological analysis
Define the meaning of an
Aerospace System
A collection of components which connect substructures together to fill a specific task. Eg Landing
gear, air conditioning, flight controls, emergency
systems, fuel systems, hydraulic/pneumatic systems.
Name any 4 on board
aerospace systems
Landing gear, air conditioning, flight controls,
hydraulic/pneumatic systems
From the perspective of safety
and mission success, how can
we classify aerospace
systems?
Primary systems -Failure can lead to safety
compromises
Secondary systems: Failure can degrade
performance but doesn’t compromise safety
What are the design
specification for aerospace
systems. Give an example too
A design specification is a parameter you need to
keep in mind when designing your system.
Example : Fuel systems requires fuel volume
knowledge, pressure and flow knowledge too
