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Relevant bibliographies by topics / Drop hammer rig

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Journal articles
Dissertations / Theses
Conference papers

Academic literature on the topic 'Drop hammer rig'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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Journal articles on the topic "Drop hammer rig"

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Birch, R. S., N. Jones, and W. S. Jouri. "Performance Assessment of an Impact Rig." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 202, no. 4 (July 1988): 275–85. http://dx.doi.org/10.1243/pime_proc_1988_202_120_02.

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A recent upgrading of a drop hammer rig was carried out and a series of calibration tests established the energy losses in the existing anvil. Both the test results and the mathematical modelling showed that significant energy losses would occur at high impact loads. An alternative anvil design considerably reduced the energy losses and improved the performance of the drop hammer rig.

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Jones, Norman, R. S. Birch, and R. Duan. "Low-Velocity Perforation of Mild Steel Rectangular Plates With Projectiles Having Different Shaped Impact Faces." Journal of Pressure Vessel Technology 130, no. 3 (June 20, 2008). http://dx.doi.org/10.1115/1.2937767.

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This article studies the perforation of mild steel square and rectangular plates struck normally by cylindrical projectiles having blunt, hemispherical, and conical impact faces. Experimental results are obtained in a drop hammer rig for the perforation of 4mm and 8mm thick plates struck by relatively heavy projectiles weighing between 11.9kg and 200kg and traveling at an initial velocity up to about 13m∕s. The plates were struck at the center and at several positions near the fully clamped supports. The effect of the aspect ratio on the perforation energies of rectangular plates is examined,

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Duplaa, S., O. Coutier-Delgosha, A. Dazin, O. Roussette, G. Bois, and G. Caignaert. "Experimental Study of a Cavitating Centrifugal Pump During Fast Startups." Journal of Fluids Engineering 132, no. 2 (January 28, 2010). http://dx.doi.org/10.1115/1.4000845.

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The startup of rocket engine turbopumps is generally performed only in a few seconds. It implies that these pumps reach their nominal operating conditions after only a few rotations. During these first rotations of the blades, the flow evolution in the pump is governed by transient phenomena, based mainly on the flow rate and rotation speed evolution. These phenomena progressively become negligible when the steady behavior is reached. The pump transient behavior induces significant pressure fluctuations, which may result in partial flow vaporization, i.e., cavitation. An existing experimental

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Held, Steffen, Tobias Siebert, and Lars Donath. "Electromyographic activity of the vastus medialis and gastrocnemius implicates a slow stretch-shortening cycle during rowing in the field." Scientific Reports 10, no. 1 (June 11, 2020). http://dx.doi.org/10.1038/s41598-020-66124-4.

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Abstract The consideration of the temporal and electromyographic (EMG) characteristics of stretch-shortening cycles (SSC) are crucial for the conceptualization of discipline-specific testing and training. Since leg muscles are first stretched (eccentric) and then contracted (concentric) during rowing, it can be assumed that the entire muscle tendon complex performs a SSC. Thus, it should be elucidated whether the rowing cycle can be attributed to either a slow or fast SSC. Therefore, EMG of the vastus medialis and gastrocnemius were captured (n = 10, 22.8 ± 3.1 years, 190 ± 6 cm, 82.1 ± 9.8 kg

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Masten, Ric. "Wrestling with Prostate Cancer." M/C Journal 4, no. 3 (June 1, 2001). http://dx.doi.org/10.5204/mcj.1918.

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February 15, 1999 THE DIGITAL EXAM digital was such a sanitary hi-tech word until my urologist snuck up from behind and gave me the bird shocked and taken back I try to ignore the painful experience by pondering the conundrum of homosexuality there had to be more to it than that "You can get dressed now" was the good doctor’s way of saying "Pull up your pants, Dude, and I’ll see you back in my office." but his casual demeanor seemed to exude foreboding "There is a stiffness in the gland demanding further examination. I’d like to schedule a blood test, ultrasound and biopsy." the doctor’s lips

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Dissertations / Theses on the topic "Drop hammer rig"

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Gao, Xiang, and S3090502@student rmit edu au. "Mix Design and Impact Response of Fibre Reinforced and Plain Reactive Powder Concrete." RMIT University. Civil, Environmental and Chemical Engineering, 2008. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20080424.150722.

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Concrete is the most broadly used material in construction worldwide and Reactive Powder Concrete (RPC, a type of ultra high performance concrete) is a relatively new member of the concrete family. In this work the critical parameters of RPC mix design are investigated and the mix design is explored through a program of concrete casting and testing. Owing to the enhanced microstructure of RPC, porosity and permeability can be significantly decreased in the concrete matrix. This benefits the durability characteristics of RPC elements resulting in a longer service life with less maintenance

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Conference papers on the topic "Drop hammer rig"

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Lonsdale, Cameron, Thomas Rusin, and Thomas Hay. "Research to Understand the Effects of Wheel Impact Loads on Wheel Stress Levels." In 2009 Joint Rail Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/jrc2009-63026.

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In recent years wheel impact loads have become a very important topic in the railroad industry due to operational and safety concerns. Much attention has been given to the level of condemnable wheel impact load as determined by wayside detection systems, and to the root causes of tread defects that lead to these wheel impacts. This paper describes physical testing of a wheelset in an instrumented drop hammer system to examine the effects of impact loading on resultant stress levels at various locations on a wheel’s surface. The drop hammer, typically used for evaluation of draft gears, is loca

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