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Home » Articles » on Tools & Techniques » Page 20

on Tools & Techniques

A listing in reverse chronological order of articles by:



  • Dennis Craggs — Big Data Analytics series

  • Perry Parendo — Experimental Design for NPD series

  • Dev Raheja — Innovative Thinking in Reliability and Durability series

  • Oleg Ivanov — Inside and Beyond HALT series

  • Carl Carlson — Inside FMEA series

  • Steven Wachs — Integral Concepts series

  • Shane Turcott — Learning from Failures series

  • Larry George — Progress in Field Reliability? series

  • Gabor Szabo — R for Engineering series

  • Matthew Reid — Reliability Engineering Using Python series

  • Kevin Stewart — Reliability Reflections series

  • Anne Meixner — Testing 1 2 3 series

  • Ray Harkins — The Manufacturing Academy series

by Carl S. Carlson Leave a Comment

Facilitation Skill # 7 – Managing Conflict

Facilitation Skill # 7 – Managing Conflict

“Honest disagreement is often a good sign of progress” – Gandhi

The Oxford English Dictionary defines “conflict” as, “an incompatibility between two or more opinions, principles, or interests.”

What is the value of conflict in an FMEA?

Conflicts are bound to arise from time to time. They can be positive and beneficial. An absence of any expressions of disagreement or conflict may indicate a problem in adequacy or quality of facilitation. Facilitators should not be afraid of conflict, but should learn the value of disagreements and how to manage them. Understanding the difference between healthy debates and dysfunctional arguments is critical to good facilitation. [Read more…]

Filed Under: Articles, Inside FMEA, on Tools & Techniques Tagged With: Facilitation

by Ray Harkins Leave a Comment

From Maker to Manager, Part 5: Practicing Sales and Negotiation

From Maker to Manager, Part 5:  Practicing Sales and Negotiation

One of the most important skill sets you could master to prepare you for business leadership is sales and negotiation. Some of you may be thinking, “Gosh, I’m not going into sales or marketing. I can skip this blog post!”

But I want to assure you, regardless of your field, sales and negotiation are part of it. 

If you’re working in operations and want to expand your department, you need to sell that idea to your executive staff. If you’re a designer with a bright idea for a new line, you’re going to have to sell that idea to the people you work with … to the other managers, engineers and stakeholders in your organization.

[Read more…]

Filed Under: Articles, on Tools & Techniques, The Manufacturing Academy

by Shane Turcott Leave a Comment

Boiler Tube Thermal Fatigue Explained

Boiler Tube Thermal Fatigue Explained

The boiler is the heart of a refinery or power plant. Boiler failures cause forced shutdowns and put the health of the plant at risk. 

Some boiler designs run the risk of thermal fatigue failure. During service, the internal waterside surfaces of the tubes form a thin, protective oxide layer. Yet if the strains caused by the combination of (1) thermal expansion and (2) restraint during temperature fluctuations exceed the oxide strain capacity, the oxide cracks. Each thermal cycle will repeatedly crack the oxide, expose fresh metal when then oxidizes, eventually forming a crack. Technically this mode of cracking is corrosion fatigue-driven by thermal cycling. Yet since the boiler water will always be mildly corrosive, for boiler applications this mode of cracking is simply called “thermal fatigue”.

[Read more…]

Filed Under: Articles, Learning from Failures, on Tools & Techniques

by Larry George 1 Comment

Why Kill Controls?

Why Kill Controls?

“The effects of chance are the most accurately calculable, and the least doubtful of all factors in the evolutionary situation.”

R. A. Fisher, ca. 1953

COVID-19 vaccination claims have changed from “prevention” to “reduced severity.” FDA approved Pfizer’s vaccine for 95% efficacy, compared with the placebo control sample. Pfizer’s placebo sample had 86% efficacy, compared with the US population case rate! Sample subjects resembled each other but not the US population! 

[Read more…]

Filed Under: Articles, on Tools & Techniques, Progress in Field Reliability?

by Ray Harkins 1 Comment

From Maker to Manager, Part 4: Learning Business Finance

From Maker to Manager, Part 4: Learning Business Finance

Regardless of your technical background, the higher you move within an organization, the more you need to understand about the organization’s finances.

Accounting is often referred to as the language of business. And I believe it. Before I studied corporate finance and accounting, I often felt lost. I didn’t speak the language. I remember sitting in a board meeting where other managers and board members were reviewing the financials for the organization. And I simply didn’t understand what all the numbers meant. By the time I starting making some simple two connections, the meeting had moved onto the next topic.

[Read more…]

Filed Under: Articles, on Tools & Techniques, The Manufacturing Academy

by Carl S. Carlson Leave a Comment

Facilitation Skill # 6 – Making Decisions

Facilitation Skill # 6 – Making Decisions

“A genuine leader is not a searcher for consensus but a molder of consensus.”   –  Martin Luther King

According to Merriam-Webster, a “decision” is “a choice that you make about something after thinking about it: the result of deciding.”

[Read more…]

Filed Under: Articles, Inside FMEA, on Tools & Techniques

by Ray Harkins Leave a Comment

From Maker to Manager, Part 3: Mastering Time Management

From Maker to Manager, Part 3: Mastering Time Management

No discussion about managerial skills would be complete without talking about time management. Effective managers are excellent at utilizing their time. More than just their time, successful managers proficiently steward the range resources under their control … the people, the equipment, and the finances. But time is the most valuable of them all.

[Read more…]

Filed Under: Articles, on Tools & Techniques, The Manufacturing Academy

by Larry George 1 Comment

Please Enter Forecast_____

Please Enter Forecast_____

Reliability-based forecasts can be made from field data on complaints, failures, repairs, age-replacements (life limits), NTFs (no trouble found), WEAP (warranty expiration anticipation phenomenon), spares, warranty claims, or deaths. Some spares inventory forecasting software says… “Please enter forecast______” No kidding. 1800 years ago Roman Jurist Ulpian made actuarial pension cost forecasts for retiring Roman Legionnaires. Would you like actuarial forecasts? Their distributions? Stock recommendations?

[Read more…]

Filed Under: Articles, on Tools & Techniques, Progress in Field Reliability?

by Larry George 2 Comments

What Price Required Data?

What Price Required Data?

The title was inspired by Rupert Miller’s report “What Price Kaplan Meier?” That report compares nonparametric vs. parametric reliability estimators from censored age-at-failure data. This article compares alternative, nonparametric estimators from different data: grouped, censored age-at-failure data vs. population ships and returns data required by generally accepted accounting principles. This article compares data storage and collection requirements and costs, and bias, precision, and information of nonparametric reliability estimators. 

[Read more…]

Filed Under: Articles, on Tools & Techniques, Progress in Field Reliability?

by Ray Harkins Leave a Comment

From Maker to Manager, Part 2: Becoming a Lifelong Learner

From Maker to Manager, Part 2: Becoming a Lifelong Learner

The first and most important aptitude needed to move from a maker mentality to a management or leadership mentality is that of a lifelong learner.

Now, I’ve heard plenty of people say, “I learn something new every day.” And it’s a cute adage. But watching the History Channel or scrolling mindlessly through YouTube videos won’t likely produce a leadership mindset.

Instead, lifelong learning is an ongoing, self-motivated journey of acquiring new, particularly in-demand skills. Lifelong learners develop and employ strategies and plans to acquire new career skills. These plans may involve returning to university to acquire a new degree, but they certainly don’t have to.

[Read more…]

Filed Under: Articles, on Tools & Techniques, The Manufacturing Academy

by Larry George 1 Comment

Why didn’t you ask before running all those tests?

Why didn’t you ask before running all those tests?

The title is a Statistician’s Lament. “Design of Experiments (DoE) is the design of any task that aims to describe or explain the variation of information under conditions that are hypothesized to reflect the variation.” [Wikipedia] Are you using DoE to design reliability tests? What do PH, GMDH, and |D|-optimality have to do with design of DoE of reliability tests?

[Read more…]

Filed Under: Articles, on Tools & Techniques, Progress in Field Reliability?

by Dennis Craggs Leave a Comment

Lognormal Probability Plots

Lognormal Probability Plots

Introduction

In general, a statistical analysis of univariate data starts with a histogram. If the histogram doesn’t show a bell shape, the data probably does not follow a normal distribution. If the logarithm of the data plots as a normal histogram, then the data is lognormally distributed. Any statistical projections and parameter estimates are based on the normal distribution of the log of the data.  This article focuses on the lognormal distribution and the lognormal probability plot.

[Read more…]

Filed Under: Articles, Big Data & Analytics, on Tools & Techniques Tagged With: Lognormal Distribution

by Larry George Leave a Comment

Origin-Destination Matrix and Travel Time Distribution Estimation, Without Survey Data

Origin-Destination Matrix and Travel Time Distribution Estimation, Without Survey Data

Bob Butler nuclear engineer, musician (www.pleasantonband.org), former city councilman and Mayor of Pleasanton, California  died October fifth https://www.pleasantonweekly.com/news/2021/10/14/what-a-week-remembering-bob-butler-former-pleasanton-mayor-and-councilman. He helped me get traffic counts data from the Pleasanton Traffic Department.

[Read more…]

Filed Under: Articles, on Tools & Techniques, Progress in Field Reliability?

by Ray Harkins Leave a Comment

Moving From Maker to Manager, Part 1

Moving From Maker to Manager, Part 1

Most successful engineers, analysts, programmers, and other types of makers of products and services will, at some point in their career, encounter a crossroads where they can either continue making, engineering, and programming, or they can begin managing those who do.

[Read more…]

Filed Under: Articles, on Tools & Techniques, The Manufacturing Academy

by Carl S. Carlson Leave a Comment

Facilitation Skill # 5 – Active Listening

Facilitation Skill # 5 – Active Listening

“Seek first to understand, then to be understood.” – Stephen Covey

A good listener tries to understand thoroughly what the other person is saying. In the end the listener may disagree sharply. However, before voicing disagreement, the active listener wants to know exactly what the other person is saying and why. [Read more…]

Filed Under: Articles, Inside FMEA, on Tools & Techniques

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