Browsing by Author "Kushner, Frank"
Now showing items 1-8 of 8
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Kushner, Frank; Walker, Doug; Hohlweg, William C. (Texas A&M University. Turbomachinery Laboratories, 2002)Rotating stall, even with multiple cells, can contribute to piping excitation due to acoustic energy traveling down the pipe as a plane wave. The main objective of the paper is to describe causes and solution of fatigue ...
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Kushner, Frank; Richard, Shawn J.; Strickland, Robert A. (Texas A&M University. Turbomachinery Laboratories, 2000)One of the most difficult diagnostic problems for centrifugal compressors is fatigue failure of an impeller, especially those with covers. The structure of a covered impeller is inherently resistant to alternating forces ...
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Kushner, Frank (Texas A&M University. Turbomachinery Laboratories, 1996)Techniques for rotating stall verification and analysis of detrimental effects are described. Majority of dynamic pressure data presented herein are from centrifugal compressors, including one unit that required field ...
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Hardin, Jim; Kushner, Frank; Koester, Stephen (Texas A&M University. Turbomachinery Laboratories, 2003)This paper describes two steam turbine governor valve failures in the same installation, the troubleshooting that determined the root cause, and the new valve designed to prevent similar failures. The original governor ...
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Li, Jiming; De Choudhury, Pranabesh; Kushner, Frank (Texas A&M University. Turbomachinery Laboratories, 2003)Stringent stability screening criteria by the American Petroleum Institute (API) result in higher level rotor stability analyses to be performed on more intermediate-pressure compressor rotors and in more detail. These ...
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Li, Jiming; Kushner, Frank; DeChoudhury, Pranabesh (Texas A&M University. Turbomachinery Laboratories, 2000)The rotordynamic and leaking characteristics of two types of gas damper seals, honeycomb seal and pocket damper seal, were experimentally evaluated on a rotating test rig. The effect of supply pressure, preswirl, and seal ...
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Kushner, Frank; Strickland, Robert A.; Shurina, James (Texas A&M University. Turbomachinery Laboratories, 2013)Rotating disk and blade fatigue failures are usually a low percentage of failures in most machinery types, but other than coupling / shaft end failures remain some of the most problematic for extensive repairs. High-cycle ...
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Kushner, Frank (Texas A&M University. Turbomachinery Laboratories, 2004)Rotating blade and disk fatigue failures cause a fairly small percentage of machine shutdowns, but can require extensive repairs and downtime. This tutorial focuses on steam turbines, centrifugal compressors, and axial ...