Logistics Engineering
and
Management
Hank Okraski
26 October 2013
Refer Unit 11, M&S Curriculum
Integrated Logistics Support (ILS)
A composite of the elements of design and support
necessary to provide for the effective support of the
system for its programmed life cycle. The elements
include the following:
+Reliability and Maintainability
+ Design Interface
+ Maintenance Planning
+ Supply Support
+ Support and Test Equipment
+ Manpower and Personnel
+ Training and Training Support
+ Technical Data and Publications
+ Computer Resources Support
+ Facilities
+ Packaging, Handling and Transportation
Mission Requirements Analysis
Operational Requirements
System Maintenance Concept
Maintenance Requirements
System Requirements Analysis
Allocation of Qualitative and Quantitative
Criteria for Support Elements
Design Criteria and Allocation
Evaluation of Alternatives
Alternatives
Logistics Factors
Preliminary Design Data
Preliminary Design
Updated Logistics Support Analysis
Identification of Preliminary Logistics
Resource Requirements
Corrective Action
System Definition/Documentation
Detailed Design
Design Data, Design Review,
Engineering Mockups and
Prototype Models, Test and
Evaluation, Assessment,
Modification, Manufacturing Data
Production and Fabrication
Systems Integration and Testing
Primary Logistics Support Analysis
Evaluation of Alternatives
Firm Design Data
Updated Logistics Support Analysis
Identification of Specific Logistics
Resource Requirements
Initial Provisioning of Logistics Support
Elements
Design and Development of New
Support Items
Corrective Action
Coordination of Compatibility
Acquisition of Logistics Support Material
Acceptance Testing
System Operational Evaluation
Ready for Training
ENGINEERING
LOGISTICS
LIFE CYCLE COSTING
Mission Requirements Analysis
Operational Requirements
System Maintenance Concept
Maintenance Requirements
Describe Trainer Life Cycle
System Requirements Analysis
Allocation of Qualitative and Quantitative
Criteria for Support Elements
Design Criteria and Allocation
Evaluation of Alternatives
Preliminary Design
System
Definition/Documentation
Alternatives
Logistics Factors
Preliminary Design Data
Corrective Action
Develop CBS
Identify Data Inputs
Primary Logistics Support Analysis
Evaluation of Alternatives
Updated Logistics Support Analysis
Identification of Preliminary Logistics
Resource Requirements
Establish Costs for CBS
Select Cost Model
Develop Cost Profile
Detailed Design
Design Data, Design Review,
Engineering Mockups and
Prototype Models, Test and
Evaluation, Assessment,
Modification, Manufacturing
Data
Production and Fabrication
Systems Integration
and Testing
Acceptance Testing
Firm Design Data
Corrective Action
Coordination of
Compatibility
Updated Logistics Support Analysis
Identification of Specific Logistics
Resource Requirements
Initial Provisioning of Logistics
Support Elements
Design and Development of New
Support Items
Acquisition of Logistics Support Material
System Operational Evaluation
Ready for Training
Identify High Cost
Contributors
Sensitivity Analysis
Pareto Diagram
Identify Feasible Alternatives
Evaluate and Select Approach
Logistics
Cost Drivers
R=e
=
t = Reliability
1
_________
MTBF
= Failure Rate
Simulator Block Diagram
MTBF= 80,000 hrs, FR=.0000125
MTTR= 15 Min
Motion
System
Trainee Station
Visual
Display
System
MTBF= 4,000 hrs
MTTR= 20 min
Motion
Electronics
TCAS
ASIP/GPS
Electronics
Visual
Image
Generator
Aural
Cueing
System
Input /
Output
System
Tactical
Env
Network
Control
Loading
Computer
System
Host
Computer
System
Digital
Comm
System
Instructor
Station
(Cockpit)
IOS
Computer
System
SUBSYSTEMS
B
C
D
E
MTBF
A
FAILURE
MTTR
MTTR
MTTR x
(HR )
(PER HOUR)
(MINUTES)
(HOURS)
(FR)
1
Cockpit
1,096
0.000912409
25
0.416666667
0.00038017
2
IOS
6,953
0.000143823
23
0.383333333
5.51321E-05
3
Visual
1,979
0.000505306
40
0.666666667
0.00033687
4
Motion
13,968
7.15922E-05
45
0.75
5.36942E-05
5
ICS
168,000
5.95238E-06
6
0.1
5.95238E-07
6
IG
3,416
0.00029274
35
0.583333333
0.000170765
7
Comp
139,000
7.19424E-06
38
0.633333333
4.55635E-06
8
I/O
959,000
1.04275E-06
23
0.383333333
3.99722E-07
9
CLS
611,000
1.63666E-06
23
0.383333333
6.27387E-07
10
RemCtr
22,975
4.35256E-05
6
0.1
4.35256E-06
11
MISC
16,000
0.0000625
30
0.5
0.00003125
TOTAL
0.002047721
0.001038413
SYSTEM RELIABIITY
FAILURE RATE=
0.0020477
FAILURES
PROPRIETARY PROCESS DO N
per HOUR
HENRY C. OKRASKI and ASSOCIATES
MTBF=
488.34774 <<<<<<<<<<<
HOURS
SYSTEM MAINTAINABILITY
0.5071068
30.426408 <<<<<<<<<<<
MTTR IN HOURS
MTTR IN MINUTES
multiplier
MMAX IN HOURS (90th)
MMAX IN MINUTES
0.8874369
53.246214 <<<<<<<<<<<
INHERENT AVAILABILITY
Ai= MTBF
MTBF +MTTR
Ao= MTBF/MTBF + MTTR(operational)
1.75
488.854849
0.9989627
Ao= 488/492=..99 <<<<<<<<<
<<<<<<<
Through the ILS process we
have maximized simulator
Availability and delivered a
system that will have
minimum Life Cycle Costs.