R Software and Reliability

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Looking for an inexpensive and powerful data analysis tool? R is free. R is an open source statistical programing language. Let’s explore R’s many capabilities concerning reliability statistics from field data analysis, to statistical process control. Detailed Information: Reliability engineering relies on reliability statistics. We need software tools that allow us to explore and model data on a regular basis. Simply plotting the data, from a histogram to a probability plot allows us to ask better questions and solve problems faster. There are commercial software packages available from general purpose statistics, JMP or MiniTab, to specialized reliability packages, Weibull++ or Reliability and Maintenance Analyst. There are versatile math packages like MathCad or Mathematica. All are expensive and provide customer support and, training. R is a statistical programing language. It’s free. It has an extensive library of speciality packages. And, an immense supportive community. It’s powerful, capable of producing publication ready graphics, includes basic and advance statistical tools, and you only need to learn a few basics to get started. Let’s explore using R for a range of common reliability statistics problems. Plotting field data, exploring process capability with statistical process control examples will highlight the power and versatility of this amazing resource. This Accendo Reliability webinar originally broadcast on 10 March 2015.

R Software and
Reliability
Fred Schenkelberg

Reliability
Statistics?Estimating reliability performance

Starting Off
• www.r-project.org
• Cran.r-project.org
• Code School “Try R”
• r-tutor.com
• statmethods.net

Weather Data
1990 - 2010 California Temperatures (°C)
Celisus
Density
-10 0 10 20 30 40
0.000.010.020.030.04

What are your
Questions?
Thanks for participating.

Every project and program includes reliability engineering. This may be obvious with a structured program and reliability plan, or may be unspoken. The product or system will have some level of reliability performance whether or not anyone is overtly working to achieve a reliability goal. You have an interest in reliability engineering. You may be working within a group and realize that you can help make the product reliable and doing so have advantages for your customers and for you. Or, you’ve been assigned a few tasks related to reliability engineering. Now what do you do? How does one become a reliability engineer? What is a reliability engineer? And what do they do that makes a difference? Let’s explore these questions and layout a couple of ways to get started as a reliability engineering professional. Whether just starting out, starting a new project, or just want to improve your existing program, this webinar will explore how to develop reliability engineering skills, adding value with each task, and spotting opportunities to improve reliability of your product or process. This Accendo Reliability webinar originally broadcast on 13 January 2015.

ALT Approaches for Reliability

Accendo Reliability

There are many reasons to use accelerated testing and just as many ways to conduct the testing. Matching and balancing cost, risk, and results takes some skill. Let’s talk about the key elements to consider so you select the best approach for your test. There are times when we have to evaluate the reliability performance of a system or component. Accelerated testing is a useful tool, or rather set of tools, that allow us to cheat time. Accelerated testing ranges from simple time compression methods to complex modeling building techniques to degradation tracking. Each approach has benefits and issues. Let’s explore the range of possibilities and how you can select the right approach for each test. Getting meaningful results is important, as is minimizing testing costs, and getting results on time. Considering your constraints and objectives is one way to match the approach to your situation to create the right test plan. More a discussion then a lecture, this free webinar is our chance to talk about accelerated testing. This Accendo Reliability webinar originally broadcast on 9 December 2014.

Environmental Testing

Accendo Reliability

We often want to know if our product will work as expected in our customers environment. Creating an environmental test plan that clearly shows weaknesses and strengths should be part of your program for each product. Let’s explore the steps and resources you should consider when creating an environmental test plan for each product. We will discuss why using standards or even the plan from the last program may not provide you meaningful information. Understanding how your product responds to your customer’s environment provides the information for your team to make improvements and improve product reliability. More a discussion than a lecture, let’s talk about the challenges and benefits to creating a unique environmental test plan for each product under development. This Accendo Reliability webinar originally broadcast on 11 November 2014.

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Accendo Reliability

Reliability Distributions

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How do you use the Weibull Distribution? It’s just one of many useful statistical distribution we have to master as reliability engineers. Let’s explore an array of distribution and the problems they can help solve in our day to day work. Detailed Information: When confronted with a set of time to failure data, what is your goto analysis approach. For me it’s a Weibull plot. It’s quick, often provides some insight to ask better questions, and easy to explain to others. A histogram is another great starting point. If we know a little about the source of the data, we may favor the normal or lognormal distributions. If discreet data, then binomial is the first choice, yet Poisson or hypergeometric have uses, too. A basic understanding of statistical distributions provides you a way to summarize data providing insights to identify or solve problems. In this webinar we’ll explore a few distributions useful for reliability engineering work and talk about how to select a distribution, basics on interpreting distributions and just touch on judging if you have selected the right distribution. This Accendo Reliability webinar originally broadcast on 14 April 2015.

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Accendo Reliability

We work on projects to improve reliability. There may not be the field data immediately available. Let’s explore what you can do to improve the overall program while delivering on your project. Specifically, what’s with cost and procurement? Detailed Information: As a reliability professional we often work with a team focused on improving the reliability of single product or system. We work with the resources and capabilities of the organization. For me a reliability project is one product or line, a program is the entire organization and lifecycle. We bring specific tools and knowledge, yet rely on the overall reliability culture of an organization to be successful The overall reliability program may or may not have the field data, root cause analysis and other element of information that allow us to effectively solve problems for a specific project. In some cases we have to work to improve the overall program while striving to create a reliable product. Let’s explore what you should do when you are building a reliability model for a new project and would like to use previous reliability history. If the data is not available what do you do? What are your options? Let’s discuss what happens when the procurement team consistently selects the least expensive and least reliable components. What are your options? You can and should change the way entire departments do business, for the good of the project and the organization. Let’s discuss the scope of your role as a reliability engineer. This Accendo Reliability webinar originally broadcast on 19 May 2015.

Should RCM be applied to all assets.pdf

Accendo Reliability

T or F Must have failure data.pdf

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Reliability and test planning takes time and it’s easy to use the plan worked out for the last program. Yet this doesn’t consider the new risks or technology or use conditions that impact product reliability. If you find resistance as you propose improvements to the reliability plan or to the test plan, what can you do to gain acceptance? If the source of resistance that what we did last time worked, why change, then what steps can you take to secure support for the needed changes? If you organization only does the same thing and wonders why the product reliability is not improving, then let’s talk. Let’s explore how to break the cycle of just do the same as last time and focus on reliability plans and testing that add value. In this webinar let’s explore how to create plans and testing that actually helps your team improve the reliability of the products. This Accendo Reliability webinar originally broadcast on 7 October 2014.

Building a Reliability Plan

Accendo Reliability

Each product development project is different. Different features, customers, use cases, and expectations. Let’s discuss how to build a custom reliability program that fits your specific situation. “Insanity: doing the same thing over and over and expecting different results.” – attributed to Albert Einstein, basically describes many organizations reliability program plans. The idea that a set of activities will effectively address all of the reliability risks of a new design is all too common in industry. Why is this? Let’s explore recognizing the current situation and which activities will provide the most value. The focus should be on creating a product that meets customer and business expectations withe lowest risk and cost. In this interactive webinar, we will discuss a couple of different situations and how to develop and manage the right reliability program. Startups with brand new technology to mature industrial equipment families of products all have reliability performance expectations, it is how we create and execute the reliability activities in support of the project that is key. Each element of the entire program should add value, not done ‘just because we always do that.” With just a little thought you can create and justify a tailored plan. Join the discussion. This Accendo Reliability webinar originally broadcast on 9 September 2014.

Establishing Reliability Goals

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The way we communicate goals directly impacts the achievement of the goal. Creating and succinctly stating a reliability goal necessary for the leadership it provides an organization when designing a new product. The reliability goal statement includes four elements: function environment probability of success duration. The function definition provides one means to define failure conditions. The environment includes elements such as weather and elements related to use frequency. The probability of success and duration should always be stated in a couplet. Setting more than one probability and duration couplet further defines reliability over the expected lifespan of the product. And setting multiple couplets enables various focuses of the goal that concern different periods of time or constituents. Setting and stating a clear and complete reliability goal delineates the boundary between a reliable enough product and one that is not. The goal enables the design team to balance the myriad of other design considerations along with product reliability in a meaningful manner. This Accendo Reliability webinar originally broadcast on 12 August 2014.

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