Musings on Reliability and Maintenance Topics

Short essays and thoughts (musings) on reliability and maintenance engineering topics.

Let me know your reaction and thought, plus any questions.
ISSN 2329-0080

The Importance of a Reliability Engineering Community

Years ago I was a part of a reliability engineering community and I had not met more than two or three members. This was before the internet and was using a new-fangled system called an email list.

At the time, it filled the role of helping me understand the many facets of reliability engineering. It helped me answer questions and allowed me to help others as well.

My desire is to help create more such communities that can help you and your organization improve the discussion concerning reliability. Let’s explore exactly how to make this work. [Read more…]

by Fred Schenkelberg Leave a Comment

What Should I Learn as a Reliability Engineer?

Ran across this question the other day from someone just starting in the role of reliability engineer. I wasn’t smart enough to ask this question when I started in the field, yet looking back I’m sure to have found the list of what one should learn and apply daunting. [Read more…]

by Fred Schenkelberg Leave a Comment

Predicting Repair Rates with Plots

Published in Quality Progress in Nov. 2018, pp 34-39. Final 1/27/18 Posted here with permission of Dr. Wayne Nelson and by his suggestion.

PREDICTING REPAIR RATES WITH PLOTS

Guest post by: Wayne B. Nelson, consultant

Schenectady, NY , WNconsult@aol.com

[Read more…]

by Fred Schenkelberg 3 Comments

Review: What is the Reliability of the Reliability Function

Review: What is the Reliability of the Reliability Function?

Jezdimir Knezevic of the MIRCE Akademy published a paper with the title above and I have a few comments.

In the article, Jezdimir suggests that the statistical approach to describing the world about us is fundamental flaws and not inherently useful for our use. He compares a mathematical/statistical approach to a scientific approach and finds the stats wanting.

Let’s take a critical look at the topic of this paper and conclusions. [Read more…]

by Fred Schenkelberg Leave a Comment

Quality & Reliability: Similarities and Differences

I like to say Reliability is all of quality over time. Quality professional tend to say reliability is an element of quality. David A. Garvin of the Harvard Business School suggests there are eight dimensions to quality, including reliability.

Either way one relates quality and reliability we need to remember that quality or reliability is not a department, team, the engineering down the hall. Quality and reliability is part of the culture of the organization. It is how we make decisions the impact how the product or service performs for customers. [Read more…]

by Fred Schenkelberg Leave a Comment

Reliability and Availability Modeling in Practice

By Kishor S. Trivedi

Kishor forward the link to the recording to me and suggest it may of interest to the Accendo Reliability community. I agree. He does a great job discussing the topic and a clear and practical manner.

The video abstract is:

IEEE Life Fellow and Hudson Chair in the Department of Electrical and Computer Engineering at Duke University Prof. Kishor S. Trivedi visited Alibaba’s Hangzhou campus on Dec. 8th and talked about technical systems’ reliability and availability assurance methods based on probabilistic models. [Read more…]

by Fred Schenkelberg 1 Comment

The Changing Support for a Reliability Engineer

In most organizations being a reliability engineer is a lonely position. I like to think we’re so effective that one or just a small team is all any organization needs.

As with any engineering position, we have specialized training and skills. We view the world and problems just a little differently then others. Then we use statistics, which tends to future isolate us from our peers.

For over 50 years there have been professional societies focused on supporting the professional education of reliability engineers. For nearly as long there have been trade journals and newsletters. Longer for technical journals and other scientific and engineering organizations and journals. [Read more…]

by Fred Schenkelberg Leave a Comment

The Value of Making Better Decisions

We make decisions every day. Our project teams and organizations have many individuals making decisions every day. Most of these decisions have little to do with product reliability, yet a surprising number of design, marketing, production, and customer care decisions that have a direct impact on product reliability performance.

As a reliability professional, do you work to make better decisions? Do you work to enable the individuals designing, producing, marketing, etc your organization’s products to make better decisions concerning reliability?

If not, why?

Let’s outline a few ways to estimate the value to you and your organization to improve decision making concerning reliability. [Read more…]

by Fred Schenkelberg 2 Comments

Should I Become a CRL, CMRP, or CRE?

What is the Career Benefit of Becoming a CRL, CMRP, or CRE?

Education. Knowledge. Motivation.

Sitting for a professional society’s reliability certification is a common goal among engineers in our field. Is there a career benefit? I’m not sure the certification provides the benefit. I think it is the work toward certification and the application of the required knowledge that provides the benefit.

[Read more…]

by Fred Schenkelberg Leave a Comment

Delivering The Bad News, Safely

Reliability engineering includes delivering bad news. This piece of equipment will fail soon, this design won’t survive outdoor use.

We start early with engineering judgment on design weaknesses. Continue by organizing groups to evaluate and comment on what will likely fail. We test, prod, poke and force failures to occur. Then we tally the actual performance and compare that to the what we hoped.

We are the bearers of bad news all too often.

So how do you avoid the stigma attached to that bad news? [Read more…]

by Fred Schenkelberg Leave a Comment

Reliability Engineering is About Answering 3 Questions

Reliability Engineering is About Answering Questions

Engineers solve problems. We optimize solutions.

Engineering starts with a question. The work of engineering is answering those questions. Can we create an antenna with enough range? How can we make a safe autonomous driving car? How much can a delivery drone carry if it has a range of 100 miles?

Reliability engineers are no different. We ask questions and work to answer them. To solve the problems in the pursuit of providing our customers reliable solutions.

In general, there are only a few types of questions a reliability engineer addresses: What will fail, when, and what is the impact of a failure.

The answers are used to design reliable products, optimize supply chains and assembly processes, refine warranty accruals, and identify significant business risks. [Read more…]

by Fred Schenkelberg Leave a Comment

11 Motivations to Learn Reliability Engineering

There are many reasons or motivations to learn. From our boss asking us to solve a problem in an unfamiliar field of science, to simple curiosity.

When faced with an unusual failure mode, we need to learn what is causing the failure in order to solve the problem. When exploring a new material, we want to learn how it will fail in our design.

As reliability professionals, we are professional learners or should be.

Let’s take a look at a list of motivations that you may experience that prompt you to learn. When you review the past month or year, you will notice how much you learned.

When you feel one of these motivations, go with it. Learn, grow, and improve your capability as a reliability professional. Furthermore, you can foster these motivations with your team and colleagues, as well. [Read more…]

by Fred Schenkelberg Leave a Comment

Reliability Engineering and Leadership

Leadership is a difficult term to clearly define. A team leader may have poor or wonderful leadership skills. A product may lead in a market with a broad feature offering, yet not hold a recognized leadership position.

As a reliability engineer, you will find many opportunities to lead. Your ability to provide vision, direction, guidance, and support for a team enables you to affect change and accomplish goals. [Read more…]

by Fred Schenkelberg Leave a Comment

Receiving Feedback Well

Not all of us are fortunate enough to receive great feedback. We all do receive feedback, and some receive very little actionable feedback.

If you offer proposals, give presentations, make requests, or even just ask for a favor, you will receive some form of response. It often is just an answer to the call to action, and nothing more.

At some point, you may be ‘pulled aside’ so someone can provide you feedback on your behavior, your delivery, your ability or skill. It is this type of feedback that is essential to your improvement. [Read more…]

by Fred Schenkelberg 1 Comment

To Improve Reliability Get Good at Change Management

To Improve Reliability You Need to Cause Change

The process to design and deliver a reliable product involves identifying risks. Taking action to understand or mitigate those risks involves much of the day to day work of reliability engineering.

Taking action to set expectations and improve decisions involves change. Change of understanding, change of specifications, change of expectations, change of designs, processes, and results.

It is the changes, big and small, that occur that achieve the desired results for the customer and organization.

You also know that not every suggestion is greeted warmly. Not every proposal is funded. Not every recommendation is accepted. [Read more…]

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Musings on Reliability and Maintenance Topics

The Importance of a Reliability Engineering Community

What Should I Learn as a Reliability Engineer?

PREDICTING REPAIR RATES WITH PLOTS

Guest post by: Wayne B. Nelson, consultant

Review: What is the Reliability of the Reliability Function?

Quality & Reliability: Similarities and Differences

Reliability and Availability Modeling in Practice

By Kishor S. Trivedi

The Changing Support for a Reliability Engineer

The Value of Making Better Decisions

What is the Career Benefit of Becoming a CRL, CMRP, or CRE?

Delivering The Bad News, Safely

Reliability Engineering is About Answering Questions

11 Motivations to Learn Reliability Engineering

Reliability Engineering and Leadership

Receiving Feedback Well

To Improve Reliability You Need to Cause Change