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Determination of Dynamic Loads in a High-Frequency Direct-Stress Fatigue Machine (Classic Reprint) - Softcover
Synopsis
Excerpt from Determination of Dynamic Loads in a High-Frequency Direct-Stress Fatigue Machine
The deflection of the dynamometer was measured visually by a beam of light Which indicated the static and dynamic loads directly on a scale. The static loads were indicated by a sharp line of light and the dynamic loads were indicated by a band of light. The mean load, which appeared as a narrow line when the machine did not oscillate, corresponded to the average of the extreme values of the light band during operation of the machine. The load range was controlled automatically by means of a photo - electric regulating device actuated by the light beam of the dyna mometer and thereby controlling the power input to the electrical drive.
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- PublisherForgotten Books
- Publication date2024
- ISBN 10 0260691976
- ISBN 13 9780260691972
- BindingPaperback
- LanguageEnglish
- Number of pages36
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Determination of Dynamic Loads in a High-Frequency Direct-Stress Fatigue
Print on DemandSeller: Forgotten Books, London, United Kingdom
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Paperback. Condition: New. Print on Demand. This book is a detailed and technical guide for engineers and technicians involved in dynamic load testing and fatigue analysis. The author presents a method to accurately calibrate and use instrumented test bars to determine dynamic loads applied to specimens during high-frequency fatigue testing. Static calibration of instruments is explained, and a custom recording procedure is outlined that utilizes differential comparator amplifiers to dramatically increase oscilloscope resolution. The book is based on a study of a specific electromagnetic, direct-stress fatigue machine, but the principles and methods described can be applied to other types of fatigue testing machines and experimental setups. The author shares insights gained from evaluating the performance of the fatigue machine's built-in optical dynamometer, which showed it consistently overestimated the mean loads compared to the instrumented test bars. A variety of test parameters are discussed, including operating frequency, cyclic load, specimen stiffness, and fixture effects, providing valuable information for accurate fatigue testing across different experimental conditions. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Seller Inventory # 9780260691972_0
Quantity: Over 20 available