Parts count method calculation, Computer Networking

Assignment Help:

 

METHOD OF CALCULATION

It involves counting the number of each part type and multiplying with the generic failure rate of each part. On summing up the product, we obtain the failure rate of each functional circuit.

The information needed to apply the method is:

(1) Generic failure rate

(2) Part Quality level

(3) Equipment Environment

The equipment failure rate is obtained by looking up a generic failure rate in Table - 4.1, multiplying it by quality factor, and then summing it with failure rate obtained by other components. The general mathematical expression for equipment failure rate with this method is:

1534_PARTS COUNT METHOD Calculation.jpg

Above equation is applied, when the entire equipment is being used in one environment. If the equipment comprises several units operating in different environments, (such as avionics systems with units in airborne inhabited or uninhabited  environment), then this equation should be applied to the period of the equipment in each environment. These "environment equipment" failure rates should be added to determine total .the same values that are used in part stress analysis. Microcircuits  have  an  additional  multiplying  factor,  πL,  which  accounts  for maturity of the manufacturing process. For devices that are in production for two years or more, there is no need to apply learning factor. For those in production less than two years, λg should be multiplied by learning factor πL 

 

 


Related Discussions:- Parts count method calculation

Routers - network layer and routing , Routers The network  layer (also ...

Routers The network  layer (also  called layer3) manages device  addressing  tracks the location  of devices on the network  and determines  the best  way to  move data. Which

Computing shortest path in a graph, While calculating shortest path, first ...

While calculating shortest path, first we assume graph presentation of network at every node then we use Djikstra's algorithm to calculate shortest path from every node to other on

Disadvantages of ip sec tunnelling mode, Disadvantages of IP sec  Tunnelli...

Disadvantages of IP sec  Tunnelling mode IP sec  tunnelling  mode has the  following  disadvantage a.Encryption of  small  packets  generates a lot  networks  over head  thu

Describe encapsulating, Can you describe encapsulating, carrier and passeng...

Can you describe encapsulating, carrier and passenger protocol?

Single-cell wireless lan, Single-cell wireless LAN All of the wireless ...

Single-cell wireless LAN All of the wireless end systems are within range of a single control module. Multiple-cell wireless LAN: there are many control modules interlinked by

What are the issues are there in network environment, What are the issues t...

What are the issues there in network environment Some of the issues necessary are: Network planning should be carried out covering the following important issues:

How do you disable cdp on the whole router, By using this command Router(c...

By using this command Router(config)# no cdp run we can disable CDP on the entire Router

Explain the term virtual circuit packet delivery, QUESTION a) Security ...

QUESTION a) Security is a very crucial component in a Distributed System. Describe three properties of a secure channel. b) During packet transmission, messages are subdivid

Fundamental of network , Fundamental of Network The  concept  of netw...

Fundamental of Network The  concept  of network  is not  new. In simple  it means an interconnected set  of some  objects. For decades we are familiar with the radio,  televi

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd