After the Sale

1
After the Sale

• Design for Supportability (Serviceability)

2
The Roadmap

• Definition and explanation of logistics and
  supportability
• The elements of logistics and system support
• Supply chain factors
• Transportation and packaging factors
• Warehousing and distribution factors

3
Definition of Supportability

• Definition Supportability refers to the inherent
  characteristics of design and installation that
  enable the effective and efficient maintenance
  and support of the system throughout the life
  cycle.

4
Definition of Supportability
Continued

• Objective To address not only the incorporation
  of reliability and maintainability
  characteristics in the design of the prime
  elements, but the design of the support
  infrastructure that is responsive to the demands
  of the prime elements.

5
Overall Logistics Cycle

• Definition of Logistics Iterative approach to
  the management and technical activities necessary
  to,
• Develop support requirements.
• Acquire the required support.
• Provide required support at minimum cost.

6
Overall Logistics Cycle
Continued

• First segment of overall logistics includes the
  procurement, distribution, transportation,
  warehousing, and ultimate delivery to the
  customer.
• Second segment of overall logistics when system
  fails and items needs to be returned for
  intermediate-level and depot level.

7
Elements of Support
Maintenance planning
Maintenance personnel
Support equipment
Supply support
Training Training support
Integrated logistics support
Maintenance facilities
Technical data Information systems, Database
structures.
Packaging, handling storage, transportation
Computer resources
Design Interface
8
Elements of Support
Continued

• Maintenance personnel Installation, checkout,
  and sustaining support and maintenance.
• Training and training support For system
  operator and maintenance personnel for Life
  cycle.
• Supply Support Spares, repairable,
  non-repairable, consumables, special supplies etc.

9
Elements of Support
Continued

• Support Equipment Tools, condition monitoring,
  diagnostic, checkout, special test, calibration
  equipments etc.
• Computer Resources Software necessary to support
  scheduled and unscheduled maintenance.
• Packaging, handling, storage, and
  transportation Special provisions, containers
  and supplies necessary.

10
Elements of Support
Continued

• Maintenance Facilities Includes facilities to
  support all the scheduled and unscheduled
  maintenance actions at all the levels.
• Technical data, information systems, database
  structure Includes system installations,
  checkout procedure, operating and maintenance
  instructions, modification instructions etc.

11
Measure of Supportability

• Supply Chain Factors are
• Capability The ability to accomplish all of the
  functions required.
• Availability The ability to respond to any, or
  all, of the requirements at any point in time
  when needed.
• Quality The process responsiveness in terms of
  stated customer objectives.

12
Transportation Measures

• Factors for evaluating the effectiveness of
  transportation are
• Transportation routes
• Transportation capacity or capability
• Transportation time
• Transportation cost

13
Transportation Measures
Continued
Rail transportation
Rail-truck (piggyback) Trailer-on-flatcar Containe
r-on-flatcar
Highway transportation
Truck-water (fishyback) Roll-on/roll-off Container
-on-ship
Water transportation
Rail-water Train-on-ship Container-on-ship
Air transportation
Air-truck Truck-on-aircraft Container-on-aircraft
Pipeline transportation

• Figure 15.5 The various forms of transportation.

14
Packaging Measures

• Availability transportation capability will be
  available when required.
• Reliability it will complete its mission as
  planned.
• Time transport a product from on point to
  another.
• Cost the cost of transportation or per one-way
  trip.

15
Packaging Measures
Continued

• Maintainability applicable transportation
  capability can be required within specified time
  and resources in the event of a failure.
• Life-cycle cost (LCC) the cost of a given
  transportation capability for a designated period
  of time.

16
Warehousing and Distribution Measure

• The basic functions of warehousing are
• Movement
• Storage
• Information transfer

17
Warehousing and Distribution Measure
Continued

• The movement function
• Receiving the unloading of goods and products
  from an inbound carrier.
• Transfer the physical movement of products into
  the warehouse for storage.
• Order picking the selection of products from
  storage in response to customer orders.

18
Warehousing and Distribution Measure
Continued

• Cross-docking the movement of products directly
  from the inbound receiving dock to the outbound
  shipping dock.
• Shipping the packing, loading on an outbound
  carrier, and shipment of products to the desired
  customer destinations.

19
Types of Warehouses

• Private Public warehouses
• General merchandise warehouses
• Commodity warehouses
• Bulk-storage warehouses
• Bonded warehouses
• Temperature-controlled warehouses
• Houshold goods warehouses

20
The metrics in Warehousing

• Time that it takes to ship a product
• Cost of product shipment from storage to
  customer
• Cost of storage
• Percentage of space utilization
• Volume of product handled

21
Spares, repair parts and related inventory factors

• The inventories associated should be able to
  supply spare parts for unscheduled as well as
  scheduled maintenance actions
• The required inventory of spares depends
• on system maintenance concept and specific type
  and quantities are identified for each level of
  maintenance

22
Factors affecting quantity of spares

• Spare and repair parts covering actual item
  replacements occurring as a result of corrective
  preventive maintenance
• Additional stock level of spares to compensate
  for repairable items in the process of undergoing
  maintenance

23
Factors affecting quantity of spares
continued..

• Additional stock level of spares to compensate
  for the procurement lead times for item
  acquisition
• Additional Stock level of spares to compensate
  for the condemnation of scrap age or repairable
  items

24
Inventory system considerations

• Too much inventory to meet all demands leads to
  increased cost of maintaining the inventory
• Lack of appropriate inventory will lead to stock
  depletion and the system not being operational
  leading to higher costs
• Optimum balance between inventory on hand,
  procurement frequency and procurement quantity is
  needed

25
General deterministic inventory system geometry
26
Economic Order Quantity (EOQ) See Pages 257-263

• Q is called EOQ

27
Design review and evaluation

• Design reviews are done to ensure
• Prime-mission related elements are designed to be
  supportable in an effective and efficient manner
• Design of logistics and maintenance support
  infrastructure adequately responds in fulfilling
  all system requirements

28
Design review and evaluation
continued.

• 3. If requirements are met, the design is
  approved and the program enters into the next
  phase
• If requirements are not met ,the appropriate
  changes are
• initiated for corrective action

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Fig. 15.10
31
Supportability Analysis

• The supportability analysis (SA) constitutes the
  integration and application of different
  analytical techniques/methods to solve a wide
  variety of problems.
• SA is the process employed on an iterative basis
  throughout system design and development that
  addresses the issue of supportability

32
Supportability Analysis
continued..

• SA aids in the evaluation of prime equipment
  design characteristics in terms of logistic
  support requirements.
• SA aids in the evaluation of alternative repair
  policies allowable within the constraints
  dictated by the maintenance concept.

33
Objectives of SA

• Initially influence the design of a given system
• Aid in the identification of the logistics and
  maintenance support resources based on the
  assumed design configuration at the time
• Aid in the initial establishment of
  supportability requirements during conceptual
  design
• Aid in the early establishment of supportability
  design criteria

34
Objectives of SA
continued.

• Aid in the process of synthesis, analysis, and
  design optimization through accomplishment of
  trade off studies and evaluation of various
  design alternatives
• Aid in the evaluation of a given design
  configuration relative to the determining
  specific logistics and maintenance support
  resource requirements
• Aid in the measurement and evaluation or
  assessment of an operating system

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CALS

• Continuous Acquisition and Life cycle Support
• CALS pertains to the application of computerized
  technology in the development and processing of
  data primarily in a digital format, with the
  objectives of
• reducing preparation and processing times,
  eliminating redundancies,
• shortening the system acquisition process, and
• reducing the overall program costs

37
Objective to develop integrated system database

• Serve as a repository for all logistics and
  related data evolving from the supportability
  analysis
• Provide the necessary information at the right
  time and in the proper format in response to the
  reporting requirements for specific programs

38
Summary

• In order to provide logistics and maintenance
  support infrastructure that can effectively and
  efficiently support the applicable system
  throughout the life cycle,
• The functions and activities related to
  supportability should be addressed from a total
  integrated overall systems perspective

39
Summary
continued..

• The logistics and maintenance infrastructure be
  considered as a significant element of the system
  in question
• The infrastructure be addressed with the system
  engineering design process from the conceptual
  design phase.