Your Reliability Engineering Professional Development Site
Once an ostrich sticks its head in the sand, any risk it might be facing is gone, right? Of course not!
I believe we are living – relative to electric system reliability – with what we call the ostrich effect. Most of us have our heads stuck in the sand. But guess what? The sand is crumbling, and the ostrich is starting to see things; things he can’t hide from anymore. [Read more…]
Author’s Note: I want to reiterate that this Series about reading the basic fracture surfaces, is for novices who often first come into contact with such failed components. This Series is about the basics (101), and is intended to give readers an appreciation for the value of such ‘broken’ parts to an effective investigation/RCA. While this information will be rudimentary to seasoned materials engineers, I know they will all appreciate heightening awareness to the need to retain such failed parts for analysis, versus throwing them away and just replacing the part. Throwing away failed parts is a recipe for a repeat failure, when one does not understand why the part failed in the first place.
In Part I of this series we focused on Erosion and Corrosion as the the first two (2) failure mechanisms of component failure. When Erosion and Corrosion are apparent, there is generally a loss of metal in some form or fashion. [Read more…]
In the late 90’s, the show “60 Minutes” did showed that an average economy car worth $15,000 new would cost about $95,000 if it was to be built from aftermarket parts, and adding in an allowance for your own labor, excluding the uni-body (which wasn’t for sale). It is more or less a given that manufacturer’s make more money on parts for their products than on the initial sale of the product. The parts market is so lucrative that there is an entire industry of aftermarket, non-OEM parts manufacturers with their own reverse engineering capabilities to sell parts at costs lower than the OEMs. If you’ve ever needed an OEM part in a hurry, the premiums are even higher and lead times can be longer than the aftermarket parts “pirates,” as they are sometimes called. [Read more…]
The Central Artery/Tunnel Project, known as the Big Dig in Boston, selected probably the riskiest delivery method which helped cause the massive schedule and cost growth it experienced. The delivery method is called DBB (design bid build). This article is not about the Big Dig but it is about the risks involved in selecting a delivery method for your construction project. [Read more…]
The problems with the payback period method as a means of analyzing and comparing potential investments extend beyond its problem with the time value of money. In fact, that problem can be corrected (but rarely is in practice) by using a method called the “Discounted Payback Period”, where the future expected cash flows are “discounted” to align them with the present value of the initial investment. But even with that correction, the Payback Period Method is still lacking as a primary return on investment (ROI) analysis tool. [Read more…]
I received an email from someone asking about what Reliability really is. He said he seems to be struggling to understand what it really means. And he’s not alone. Here’s a simple explanation of Reliability the way my mentor, John Moubray, explained it to me. [Read more…]
FMEAs are legal documents that support the demonstration of due care in product development. FMEA teams should ensure their worksheets are consistent with good legal practices for documents, and follow company legal guidelines.
“Common sense often makes good law.” William Orville Douglas, past Justice of the Supreme Court
Author’s Note: I want to reiterate that this Series about reading the basic fracture surfaces, is for novices who often come into contact with such failed components. This Series is about the basics (101), and is intended to give readers an appreciation for the value of such ‘broken’ parts to an effective investigation/RCA. While this information will be rudimentary to seasoned materials engineers, I know they will all appreciate heightening awareness to the need to retain such failed parts for analysis, versus throwing them away and just replacing the part. Throwing away failed parts is a recipe for a repeat failure, when one does not understand why the part failed in the first place. [Read more…]
At first glance, a computerized maintenance management system (CMMS) and Failure Modes And Effects Analysis (FMEA) may appear to be worlds apart. But take a deeper dive, and it’s easy to see that they both share a common component: data. The core of any CMMS is defined by gigabytes of data that guarantee its usefulness and functionality, while the success of the systematic steps in FMEA depends on good quality data.
Many believe strongly in the value of warranties on new / refurbished equipment. They go to great lengths talking about how important it is to do the manufacturer’s recommended maintenance to maintain validity of the warranty. This is a continuation of the last blog article on having too many failures despite following manufacturer’s recommendations. Manufacturer’s usually recommend maintenance and spare parts for their products. In our last blog we can see that those recommendations are often flawed. So what about their warranty? [Read more…]
COVID-19 is now among the ranks of The Black Death, Spanish ‘Flu, and SARS. Another submicroscopic demon is attacking humanity and bringing the mankind of this Information Age to its knees both physically and economically despite its insignificant size.
Viruses have been around longer than man and, when we become part of a future paleaontological record, they will still be plaguing whatever species takes over from us.
We also live alongside other virulent diseases that continue to plague the world. In 2018, TB affected 25% of the world’s population and caused some 1.5 million deaths while malaria affected 220 million people causing another 405,000 deaths. In addition, HIV/AIDS and other diseases such as measles, cholera, and typhoid contribute to the millions of deaths annually. Starvation, while not a disease, decimated mankind at an estimated rate of 21,000 per day in 2019. [Read more…]
Have you ever wondered? In this video I explain the differences between Reliability Centered Maintenance (RCM) and Preventive Maintenance Optimization (PMO). [Read more…]
by Alan Ross
When you start to put a risk and reliability program together for high voltage electrical equipment—primarily transformers—you have to go through a cultural change. I’ve seen it repeatedly, both in the industrial marketplace and the utility marketplace.
It’s never a one-person decision. [Read more…]
This article is directed at those ‘first responders’ who arrive immediately at the failure scene. These are the people who have to ensure the area is safe, preserve the scene for investigators and contribute to a plan to expedite a quick, safe return to production norms.
Many do not understand how valuable failed parts are to the metallurgical/forensic investigators. Broken parts are to metallurgists’, like the murder weapon is to a forensic crime investigator.
This article is meant to educate those that have access to the failed parts first, as to why they should preserve them in their failed state (not cleaning them up). We want to give them enough knowledge to be dangerous and raise their curiosity as to making a call on the fracture patterns they see. [Read more…]
If you’ve ever participated on a project team considering the purchase of a major piece of equipment, you’ve almost certainly heard of “Payback Period” – the length of time projected to recoup an initial investment through cost savings, increase profits, etc. It’s fairly simple to calculate: [Read more…]
