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

Explain simple mail transfer protocol, Q. Explain Simple Mail Transfer Prot...

Q. Explain Simple Mail Transfer Protocol? Electronic Mail -Simple Mail Transfer Protocol (SMTP) is used to support email on the Internet -Addressing consists of two pa

eigrp protocol update route information, How does EIGRP protocol update ro...

How does EIGRP protocol update route information to its neighbors

Describe flow and error control mechanisms, Q. Describe Flow and Error Cont...

Q. Describe Flow and Error Control Mechanisms? Flow and Error Control Mechanisms - Stop and Wait ARQ - Go-Back ARQ - Selective Repeat ARQ

What is tdm, What is TDM? TDM is a digital process that can be applied ...

What is TDM? TDM is a digital process that can be applied when the data rate capacity of the transmission medium is greater than the data rate needed by the sending and receivi

What is nic and wan, What is NIC and WAN? NIC is short for Network Inte...

What is NIC and WAN? NIC is short for Network Interface Card. This is a peripheral card that is joined to a PC in order to connect to a network. Each NIC has its own MAC addres

List the advantages of microwaves, List the Advantages of microwaves.  ...

List the Advantages of microwaves.  a. They need no right of way acquisition among towers. b. They can carry high quantities of information because of their high operating f

Point to point architecture - application layer, Point to Point Architectur...

Point to Point Architecture The term  peer means equal which can  be informally  interpreted as a process with  capability similar to the other processes with process communic

Modeling a wan, To model a WAN, we need a graph in which the nodes model sw...

To model a WAN, we need a graph in which the nodes model switches and the edges model direct join between switches. The modeling saves essence of network, and it ignores attached d

Ajax, Ajax is a relatively new set of techniques that, in a sense, implemen...

Ajax is a relatively new set of techniques that, in a sense, implement some of the functionalities originally provided by RPC. Ajax is primarily used to build web applications with

Ipv6 - network layer and routing , IPv6 The  internet  engineering task...

IPv6 The  internet  engineering task force begin  the effort to develop a successor  protocols  to IPv4 in the early  1990 is an internet  layer protocols  for packet  switched

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