Ahmet Selamet, a professor of mechanical engineering at The Ohio State University (Columbus, OH), and his students are helping automotive engineers design new types of pipe adapters that fit into an automotive engine's air intake ductwork to reduce vehicle noise. A car's intake and exhaust systems contain branched pipes. "The pipes generate sound just like a flute or other wind instrument," says Selamet. "My investigation includes the basic physics that lead to the formation of whistles as well as understanding the effective devices and strategies to suppress them." Selamet's technique for eliminating noise is the use of various shapes for deflecting wind away from the coupling interfaces. In experiments, his team reduced whistling sound by 30 dB. For more information, call Selamet at (614) 292-4143 or visit the University's web site at www.osu.edu.
Most cyber attacks could be avoided by adopting a list of Critical Security Controls that were created by the Center for Internet Security. That’s the message from Steve Mustard of the Automation Federation.
How 3D printing fits into the digital thread, and the relationship between its uses for prototyping and for manufacturing, was the subject of a talk by Proto Labs' Rich Baker at last week's Design & Manufacturing Minneapolis.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies.
You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived.
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