6

.docx

School

Conestoga College *

*We aren’t endorsed by this school

Course

8000-4

Subject

Mechanical Engineering

Date

Dec 6, 2023

Type

docx

Pages

5

Uploaded by ashwinbahulayan

Report
5 The plot of a probability density function (PDF) shows number of successes versus total number of opportunities reliability values versus time number of events (such as failures) versus time likelihood that mean values will increase 5 days ago Good response What do you like about this response? How was it good? Cancel Submit Bad response What was the issue with this response? How could it be improved? Cancel Submit A probability density function (PDF) plots the probability of a random variable taking on a particular value. Specifically: The y-axis of a PDF plot shows the probability density, which indicates the likelihood or probability of the random variable taking on the values along the x-axis. The x-axis usually represents the possible values or range of the random variable. With that in mind: Option 1 is incorrect. A PDF does not plot the number of successes vs total opportunities. Option 2 could be correct if the random variable is reliability and the x-axis is time. Option 3 is correct. A common use of a PDF is to plot the probability density of events like failures occurring over time. Option 4 is incorrect. A PDF does not indicate the likelihood that mean values will increase. It shows the probability distribution of a random variable's possible values. Therefore, the best match for what a PDF plot typically shows is option 3: number of events (such as failures) versus time. Claude Instant Profile picture
The is used for predicting the reliability springs, bearings, brakes, and clutches, seals, pumps, and other nonelectrical devices. Aviation Handbook Handbook of Reliability Prediction for Mechanical Systems Reliability Engineer Handbook Military Handbook 217 5 days ago Good response What do you like about this response? How was it good? Cancel Submit Bad response What was the issue with this response? How could it be improved? Cancel Submit Based on the context clues provided, the best match among the choices is: Handbook of Reliability Prediction for Mechanical Systems Some key reasons: It specifically mentions reliability prediction, which is what the question is asking about. It refers to mechanical systems, which would include the non-electrical devices listed as examples - springs, bearings, brakes, clutches, seals, pumps. Aviation Handbook and Military Handbook 217 could be reliability resources but do not specify mechanical systems reliability prediction. Reliability Engineer Handbook is too general, it does not imply it contains methods for predicting reliability of specific mechanical components. Therefore, the Handbook of Reliability Prediction for Mechanical Systems best matches the information given as it explicitly focuses on predicting the reliability of non-electrical/mechanical devices and systems. Claude Instant Profile picture What are the two parameters that describe a Weibull Distribution?
CDF and PDF Mean and Standard Deviation Y and In(x) Shape and Scale 5 days ago Good response What do you like about this response? How was it good? Cancel Submit Bad response What was the issue with this response? How could it be improved? Cancel Submit The two parameters that describe a Weibull distribution are shape and scale. A Weibull distribution is used to model time-to-failure or time-between-failures data for mechanical and electronic systems. The shape parameter, usually represented by k, describes the shape of the distribution curve. It indicates whether the failure rate is increasing, decreasing, or constant over time. The scale parameter, usually represented by η or λ, is a measure of the typical life or failure time. It scales the x-axis and indicates where the "knee" of the distribution curve occurs. While CDF and PDF describe the cumulative distribution function and probability density function of the Weibull, they are not the specific parameters. Mean and standard deviation do not fully parameterize a Weibull distribution. Y and In(x) are not standard parameters either. Therefore, the two parameters that describe a Weibull distribution are the shape parameter and scale parameter, usually represented as k and η/λ respectively. Claude Instant Profile picture For a particular application, MIL-HDBK-217 lists a base failure rate of 0.07 × 10-6 failures per hour and pi values of:
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
  • Access to all documents
  • Unlimited textbook solutions
  • 24/7 expert homework help