Category Archives: Reliability@Risk™ – Fred Schenkelberg

#152 – THE DERATING AND SAFETY MARGIN MANUAL – FRED SCHENKELBERG

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ABC FredDo you have derating & safety margin manual in your organization? Is it used regularly? If not, your organization’s products are likely not as reliable as they should be. You are shipping products that are not as robust nor as reliable as your customers deserve.

Derating and safety factors provide a means to select components or create design features that have sufficient margin to accommodate variation in use and strength over time. So why are these tools routinely ignored or given only fleeting attention? Continue reading →

#151 – PRODUCT RELIABILITY DESIGN GUIDELINES: THE DESIGN FOR RELIABILITY MANUAL – FRED SCHENKELBERG

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ABC FredOne way to capture and disseminate reliability engineering related information and advice is through internal documents. This of course only works if they are both useful and used.

The focus should be on gathering and providing essential and meaningful information that will improve the reliability of your product. Another element that makes these design guidelines valuable is if they save time. Engineers love to save time. Continue reading →

#150 – DO YOUR KPI’S ADVERSELY IMPACT RELIABILITY – FRED SCHENKELBERG

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ABC FredKey performance indicators (KPIs) are measurable values related to essential business objectives. A KPI provides a means to monitor the performance of a specific function.

In larger organizations, with sales & marketing, research & development, operations, supply chain, and other teams working to bring products to market, each department has a specific role. For example, the sales team engages with potential customers to assist with the customer’s purchase decision. The organization and the sales team may want to focus on sales growth or average profit margin as KPIs. Continue reading →

#149 – INCORPORATING RELIABILITY INTO DESIGN REVIEWS – FRED SCHENKELBERG

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ABC FredReliability Input into Design Reviews

Consider the following scenario: You are a reliability engineer working for a large corporation that plans to launch a new product. On occasion, you and the team sit down to review the design. The idea is to check the design for any issues with the combined wisdom of all the players involved. Or, perhaps, the review serves as just a status update for the entire team, providing a focus on the most important issues and action items. Continue reading →

#147 – ACHIEVING PROCESS STABILITY – FRED SCHENKELBERG

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ABC FredWhat Is Process Stability?

Everything varies. Your vendors provide components with a range of values. Your production process varies, too. Creating, monitoring, and maintaining process stability enhances your product reliability performance.

When I started my professional life as a manufacturing engineer, a senior engineer told me that we take a product design and can only make it worse. He said that, if we could make every unit exactly according to the nominal values of the drawing, every unit would work well. Continue reading →