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

Determine about the complete and proper security, Determine about the Compl...

Determine about the Complete and proper security Complete and proper security configuration and administration is indeed a complex issue. One should think carefully about the

Transmission control protocol, Transmission Control Protocol (TCP) TCP ...

Transmission Control Protocol (TCP) TCP makes the Internet reliable. TCP solves several problems which can occur in a packet switching system. TCP provide the given facilities:

Why congestion occurs, Q. Why congestion occurs? Congestion Emerg...

Q. Why congestion occurs? Congestion Emerge if the load on the network is greater than the capacity of the network - Load that is the number of packets sent to the net

Network Layer and Routing , Network Layer and Routing As discussed in...

Network Layer and Routing As discussed in previous  chapters the physical  layer  provides   connection sand services to the  data link  layer while the  data link layer is

Comp architecture, In reg-mem architecture, clock cycle is 10 ns wide. It i...

In reg-mem architecture, clock cycle is 10 ns wide. It is proposed that reg-reg architecture be used instead, that reduces the clock cycle by 2 ns. However, it requires an addition

Determine the mean node-node path, Mean node-node path The mean node-no...

Mean node-node path The mean node-node path is two times the mean node-root path.  Number the levels of the tree with the root as 1 and the deepest level as N.  The path from t

What is extranet and intranet, Extranet and Intranet An Extranet is a t...

Extranet and Intranet An Extranet is a type of Intranet (Internal TCP/IP Network) that has been selectively opened to a firm's suppliers, customers. Intranet An intrane

TRAFFIC CONGESTION ASSESSMENT, Can I get help for traffic congestion anlysi...

Can I get help for traffic congestion anlysis using GIS

What is dhcp, What is DHCP? DHCP is short for Dynamic Host Configuratio...

What is DHCP? DHCP is short for Dynamic Host Configuration Protocol. Its major task is to automatically assign an IP address to devices across the network. It first checks for

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