Machine Vibration Monitoring for Diagnostics through Hypothesis Testing

HYPOTHESIS TESTING FOR AN EXCHANGEABLE NORMAL DISTRIBUTION

Consider an exchangeable normal vector with parameters ????2, and ?. On the basis of a vector observation some tests about these parameters are found and their properties are discussed. A simulation study for these tests and a few nonparametric tests are presented. Some advantages and disadvantages of these tests are discussed and a few applications are given.

Paper Machine Rereeler Vibration Testing: Insights into Demanding Rotating Machinery Diagnostics

Before paper is a finished product it may be reeled several times, both during the manufacturing process and after the main paper machine. A rereeler is an intermediate section in a paper making process that has its own unwind stand and rewinder, and is employed to ensure that the paper moving forward is as defect free as possible. Vibration, in general, has negative effects on the life of pape...

Machine-Condition Monitoring using Vibration Analysis

Bayesian Hypothesis Testing in Machine Learning

Most hypothesis testing in machine learning is done using the frequentist null-hypothesis significance test, which has severe drawbacks. We review recent Bayesian tests which overcome the drawbacks of the frequentist ones.

Expert system development for vibration analysis in machine condition monitoring

Expert systems can be adapted for machine condition monitoring data interpretation due to the ability to identify systematic reasoning processes. As vibration analysis in condition monitoring is still generally performed by highly trained professionals, the use of expert systems would allow a greater analysis throughput as well as enabling technicians to perform routine analysis. The developmen...