This relates to a series of posts on Vibration Analysis. The purpose is education of engineers and managers to effectively improve availability, reliability and performance of their manufacturing plants and improve profitability of their business
Vibration Analysis, Emerson Makes it Easy for YouDieter Charle
One of the most powerful tools to deploy reliability centered maintenance are portable vibration measurements. With the new portable vibration analyser of Emerson, portable vibration analysis is now made easier than ever before. By the following slidedeck you'll get an introduction to the basics of vibration analysis and the capabilities of the CSI2140
Machinery Vibration Analysis and Maintenance Living Online
This practical workshop provides a detailed examination of the detection, location and diagnosis of faults in rotating and reciprocating machinery using vibration analysis. The basics and underlying physics of vibration signals are first examined. The acquisition and processing of signals is reviewed followed by a discussion of machinery fault diagnosis using vibration analysis, and rectifying the unidentified faults. The workshop is concluded by a review of the other techniques of predictive maintenance such as oil and particle analysis, ultrasound and infrared thermography. The latest approaches and equipment used together with current research techniques in vibration analysis are also highlighted in the workshop.
MORE INFORMATION: http://www.idc-online.com/content/practical-machinery-vibration-analysis-and-predictive-maintenance-11
Vibration Analysis, Emerson Makes it Easy for YouDieter Charle
One of the most powerful tools to deploy reliability centered maintenance are portable vibration measurements. With the new portable vibration analyser of Emerson, portable vibration analysis is now made easier than ever before. By the following slidedeck you'll get an introduction to the basics of vibration analysis and the capabilities of the CSI2140
Machinery Vibration Analysis and Maintenance Living Online
This practical workshop provides a detailed examination of the detection, location and diagnosis of faults in rotating and reciprocating machinery using vibration analysis. The basics and underlying physics of vibration signals are first examined. The acquisition and processing of signals is reviewed followed by a discussion of machinery fault diagnosis using vibration analysis, and rectifying the unidentified faults. The workshop is concluded by a review of the other techniques of predictive maintenance such as oil and particle analysis, ultrasound and infrared thermography. The latest approaches and equipment used together with current research techniques in vibration analysis are also highlighted in the workshop.
MORE INFORMATION: http://www.idc-online.com/content/practical-machinery-vibration-analysis-and-predictive-maintenance-11
Vibration analysis can provide very useful information about the status of the equipment and the nature and severity of the problem.
It is possible to use these information to plan all maintenance activities and minimize machine downtime.
This presentation is equipped with the basic concepts of Condition Monitoring. The methods and analysis, circumscribed by Condition Monitoring, are summarized with an addition of application in this presentation.
A wide range of Condition monitoring techniques is available in the industries over the world and some have become standards in many industries.
The "standard" techniques are:
1.Vibration Analysis
2.Oil Analysis
3.Thermal Analysis
4.Ultrasound Analysis
this this slideshare presentation we discussed about difference of vibration system for forced damping here this is having with simple definition and for dynamic of machinery without equation and simple method.
Vibration analysis can provide very useful information about the status of the equipment and the nature and severity of the problem.
It is possible to use these information to plan all maintenance activities and minimize machine downtime.
This presentation is equipped with the basic concepts of Condition Monitoring. The methods and analysis, circumscribed by Condition Monitoring, are summarized with an addition of application in this presentation.
A wide range of Condition monitoring techniques is available in the industries over the world and some have become standards in many industries.
The "standard" techniques are:
1.Vibration Analysis
2.Oil Analysis
3.Thermal Analysis
4.Ultrasound Analysis
this this slideshare presentation we discussed about difference of vibration system for forced damping here this is having with simple definition and for dynamic of machinery without equation and simple method.
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Unit 3 which is a part of a continuing series on education in vibration analysis of live engineering systems operating in both linear and non-linear out of equilibrium zones.
This is part 2 of an ongoing series on Vibration Analysis for Condition Based Maintenance. Application is on Industrial machinery to improve Reliability, Availability and Performance of industrial machine to enhance business performance.
Introduction to Reliability Centered MaintenanceDibyendu De
Introduces Reliability Centered Maintenance, strategies employed, formulation of effective maintenance plan, reduction of consequences of failures and failure rate.
This is about Winning Anywhere - the Power of See Dibyendu De
This was a presentation I gave in Mumbai for Quality Circle Forum of India. This is based on a recent book, I published -- Winning Anywhere -- the Power of See. Though the presentation was tailored to top managers of Manufacturing the principles of the book can be similarly applied to any field of human activity, which starts with the power of see. The book is the first in the series -- NEME (noticeornot, engageornot, mullornot, exchangeornot), which form the cornerstone of the discipline of Nemetics.
This presentation gives an approach in #Nemetics to model complex and 'wicked' problems so that greater understanding and sense-making develop. This is because Nemetics aims at understanding, learning & designing in the domain of Complexity, effectively addressing complex and wicked problems.
An Approach to Detecting Writing Styles Based on Clustering Techniquesambekarshweta25
An Approach to Detecting Writing Styles Based on Clustering Techniques
Authors:
-Devkinandan Jagtap
-Shweta Ambekar
-Harshit Singh
-Nakul Sharma (Assistant Professor)
Institution:
VIIT Pune, India
Abstract:
This paper proposes a system to differentiate between human-generated and AI-generated texts using stylometric analysis. The system analyzes text files and classifies writing styles by employing various clustering algorithms, such as k-means, k-means++, hierarchical, and DBSCAN. The effectiveness of these algorithms is measured using silhouette scores. The system successfully identifies distinct writing styles within documents, demonstrating its potential for plagiarism detection.
Introduction:
Stylometry, the study of linguistic and structural features in texts, is used for tasks like plagiarism detection, genre separation, and author verification. This paper leverages stylometric analysis to identify different writing styles and improve plagiarism detection methods.
Methodology:
The system includes data collection, preprocessing, feature extraction, dimensional reduction, machine learning models for clustering, and performance comparison using silhouette scores. Feature extraction focuses on lexical features, vocabulary richness, and readability scores. The study uses a small dataset of texts from various authors and employs algorithms like k-means, k-means++, hierarchical clustering, and DBSCAN for clustering.
Results:
Experiments show that the system effectively identifies writing styles, with silhouette scores indicating reasonable to strong clustering when k=2. As the number of clusters increases, the silhouette scores decrease, indicating a drop in accuracy. K-means and k-means++ perform similarly, while hierarchical clustering is less optimized.
Conclusion and Future Work:
The system works well for distinguishing writing styles with two clusters but becomes less accurate as the number of clusters increases. Future research could focus on adding more parameters and optimizing the methodology to improve accuracy with higher cluster values. This system can enhance existing plagiarism detection tools, especially in academic settings.
Online aptitude test management system project report.pdfKamal Acharya
The purpose of on-line aptitude test system is to take online test in an efficient manner and no time wasting for checking the paper. The main objective of on-line aptitude test system is to efficiently evaluate the candidate thoroughly through a fully automated system that not only saves lot of time but also gives fast results. For students they give papers according to their convenience and time and there is no need of using extra thing like paper, pen etc. This can be used in educational institutions as well as in corporate world. Can be used anywhere any time as it is a web based application (user Location doesn’t matter). No restriction that examiner has to be present when the candidate takes the test.
Every time when lecturers/professors need to conduct examinations they have to sit down think about the questions and then create a whole new set of questions for each and every exam. In some cases the professor may want to give an open book online exam that is the student can take the exam any time anywhere, but the student might have to answer the questions in a limited time period. The professor may want to change the sequence of questions for every student. The problem that a student has is whenever a date for the exam is declared the student has to take it and there is no way he can take it at some other time. This project will create an interface for the examiner to create and store questions in a repository. It will also create an interface for the student to take examinations at his convenience and the questions and/or exams may be timed. Thereby creating an application which can be used by examiners and examinee’s simultaneously.
Examination System is very useful for Teachers/Professors. As in the teaching profession, you are responsible for writing question papers. In the conventional method, you write the question paper on paper, keep question papers separate from answers and all this information you have to keep in a locker to avoid unauthorized access. Using the Examination System you can create a question paper and everything will be written to a single exam file in encrypted format. You can set the General and Administrator password to avoid unauthorized access to your question paper. Every time you start the examination, the program shuffles all the questions and selects them randomly from the database, which reduces the chances of memorizing the questions.
HEAP SORT ILLUSTRATED WITH HEAPIFY, BUILD HEAP FOR DYNAMIC ARRAYS.
Heap sort is a comparison-based sorting technique based on Binary Heap data structure. It is similar to the selection sort where we first find the minimum element and place the minimum element at the beginning. Repeat the same process for the remaining elements.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
5. MACHINE VIBRATION IS COMPLEX
• Behaviour of each component creates their
own frequencies
• Frequency tells us about a possible problem.
• Amplitude tells us about the severity of the
problem.
• Multiple frequencies combine to produce the
overall vibration
• Vibration from 1 Hz to 1000 Hz captures
overall amplitude
6. ONE CYCLE OF VIBRATION
• Movement of weight from neutral
position to upper limit
• Upper limit back through neutral
position to lower limit
• Lower limit to neutral position
• The movement of the weight
plotted against time is a sine wave
•
7. FREE & FORCED VIBRATION
• With sudden impulse the system will
vibrate at its natural frequency
• Free vibrations die out with time if the
system is stable. (Bump test)
• Forced vibration are periodically imposed
on the system (like motor). The response is
also periodic
8. FORCE, MOBILITY & VIBRATION
• Response to forced
vibration is not uniform at
all frequencies.
• Response depends on the
mobility of the structure
• Mobility varies with
frequencies. High at
resonance. Low where
damping is present.
9. MEASUREMENT OF AMPLITUDE & FREQUENCY
Peak for velocity and
acceleration (used for algorithms)
Peak to Peak Displacement
RMS Velocity & acceleration
(Europe) Energy content (only for
sine wave)
Average Not used in vibration
analysis
Frequency = 1/Period (Hz/CPM)
10. MEASUREMENT OF AMPLITUDE
Peak for velocity and
acceleration
Peak to Peak Displacement
RMS Velocity & acceleration
(Europe) Energy content (only for
sine wave)
Average Not used in vibration
analysis
11. DISPLACEMENT, VELOCITY & ACCELERATION
What?
• Displacement = d = x = A sin (wt)
• Velocity = v = dx / dt = Aw cos wt = Aw sin
(wt + 90o)
• Acceleration = a = dv /dt = - Aw2 sin wt =
Aw2 sin (wt + 180o)
Why?
• Strain Energy ∝ to d2
• Kinetic Energy ∝ to v2
• Acoustic Pressure ∝ to a2
• Force
12. VIBRATION - CAR ANALOGY
Low Frequency
Long period (T)
High displacement
Average Velocity
Low Acceleration
Medium Frequency
Medium period (T)
Average displacement
Average Velocity
Average Acceleration
High Frequency
Short period (T)
Low displacement
Average Velocity
High Acceleration
13. THANK YOU FOR COMPLETING UNIT 1
CONTACT: FOR FACILITATED TRAINING
DIBYENDU DE, EMAIL ID: DDE337@GMAIL.COM