Results 31 to 40 of about 3,287,769 (244)

Estimation effect of load reduction of acrylic foam film by dynamic three-point bending test

Nihon Kikai Gakkai ronbunshu, 2016
In this research, impact reduction effect of acrylic foam film was clarified by using dynamic three-point bending testing machine. The specimens were an aluminum alloy (JIS A6063) beams with an acrylic foam films on surfaces of the beams.
Kyohei TAKEO, Tadaharu ADACHI, Ryohei KORETOH, Hitoshi TADA   +3 more
doaj   +1 more source

Application of pattern search method to power system valve-point economic load dispatch

, 2007
Direct search (DS) methods are evolutionary algorithms used to solve constrained optimization problems. DS methods do not require any information about the gradient of the objective function at hand, while searching for an optimum solution.
AL-Othman, A.K., Al-Sumait, J.S., Sykulski, J.K.   +2 more
core   +1 more source

TV fatigue crack monitoring system [PDF]

, 1977
An apparatus is disclosed for monitoring the development and growth of fatigue cracks in a test specimen subjected to a pulsating tensile load. A plurality of television cameras photograph a test specimen which is illuminated at the point of maximum ...
Exton, R. J.
core   +1 more source

Updated relations for the uniaxial compressive strength of marlstones based on P-wave velocity and point load index test

Innovative Infrastructure Solutions, 2016
Although there are many proposed relations for different rock types to predict the uniaxial compressive strength (UCS) as a function of P-wave velocity (VP) and point load index (Is), only a few of them are focused on marlstones.
Abbas Abbaszadeh Shahri, S. Larsson, F. Johansson   +2 more
semanticscholar   +1 more source

Effect of Indenter Angle on Bearing Performance of Coal and Accompanying Rocks Under Point Load and Characterization of Mechanical Parameters

Energy Science & Engineering
Coal, mudstone, sandstone, and limestone, which are common in coal mines, were selected as research objects, and 60°, 90°, and 120° indenters were used to conduct point load tests to study the deformation and failure laws of rocks under point loads. This
Qian Wang, Yujiang Zhang, Delong Cui, Guorui Feng, Yunlou Du, Shuai Zhang, Haojie Cheng, Zhengjun Zhang   +7 more
doaj   +1 more source

Extrapolation of Tractor Traction Resistance Load Spectrum and Compilation of Loading Spectrum Based on Optimal Threshold Selection Using a Genetic Algorithm

Agriculture, 2023
To obtain the load spectrum of the traction resistance of the three-point suspension device under tractor-plowing conditions, a load spectrum extrapolation method based on a genetic algorithm optimal threshold selection is proposed.
Meng Yang, Xiaoxu Sun, Xiaoting Deng, Zhixiong Lu, Tao Wang   +4 more
doaj   +1 more source

Test 2145: John Deere 6135E [PDF]

, 2016
ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications ...
Nebraska Tractor Test Lab,
core   +1 more source

Nonlinear semi-numeric analysis and simplified analysis of polymer fiber-reinforced concrete prisms under three-point bending test conditions [PDF]

E3S Web of Conferences
This paper presents a semi-numeric nonlinear analysis and a simplified analysis for evaluating the load-displacement behavior of polymer fiber-reinforced concrete elements under three-point bending test conditions.
Unuk Ziga
doaj   +1 more source

Analysis of Load Inhomogeneity of Two-Tooth Difference Swing-Rod Movable Teeth Transmission System under External Excitation

Machines, 2022
In order to improve the load state of the two-tooth difference swing-rod movable teeth transmission system, in this paper, a dynamic equivalent calculation model of the transmission system is established based on lumped parameter theory, and then a ...
Rui Wei, Yali Yi, Menglei Wu, Meiyu Chen, Herong Jin   +4 more
doaj   +1 more source

Correlation Study Between Point Load Test And Uniaxial Compressive Strength and Tensile Strength of Some Sedimentary Rocks In Mosul City

Engineering and Technology Journal, 2012
The point load test is used as a quick and inexpensive means of obtaining rock strength indexes when logging core samples in either a field or laboratory setting.
Thamer M. Nuri, A. Nasser, Y. Ali, Shaima Ahmed   +3 more
semanticscholar   +1 more source