Results 11 to 20 of about 499,828 (261)

Analytical and experimental research on impact load during rapid engagement of gas turbine

open access: yesZhongguo Jianchuan Yanjiu, 2022
ObjectivesThis paper proposes a theoretical calculation method for obtaining the impact load and dynamic response of shafting during the rapid engagement process of a combined gas turbine and gas turbine (COGAG) power plant.
Hao CHEN   +4 more
doaj   +1 more source

Experimentally investigating comparison between the behavior of fibrous concrete slabs with steel stiffeners and reinforced concrete slabs under dynamic–static loads

open access: yesOpen Engineering, 2022
Three scaled concrete slabs were cast and tested till failure under drop-weight impacts and static loads, sequentially. Two of the three slabs contained 0.5% steel fiber while the third slab was constructed by using only steel bar reinforcement (i.e ...
Ali Adnan Al Zahid   +1 more
doaj   +1 more source

Impact Re-Loaded [PDF]

open access: yesfteval Journal for Research and Technology Policy Evaluation Issue 48/July 2019 - Proceedings of the Conference "Impact of Social Sciences and Humanities for a European Research Agenda Valuation of SSH in mission-oriented research", 2019
Es gibt verschiedene Versuche, die Bedeutung von „Auswirkung“ im Zusammenhang mit und aufgrund von wissenschaftlichen Forschungen aus den Sozial- und Geisteswissenschaften zu umschreiben und zu erfassen.1 Trotz aller lobenswerten Bemuhungen konnen diese Definitionen nicht den Eindruck aufheben, dass die anfangliche Notwendigkeit besteht, eine zu ...
Thomas König   +2 more
openaire   +1 more source

A study on the effect of continuous impact load on thermal life of main transformer in urban rail transit

open access: yes机车电传动, 2023
The main transformer is key power equipment connecting the main network with the urban rail transit grid, and therefore, its safe and stable operation has great significance.
YE Qing, ZHAO Wenbin, ZHENG Xin, XU Bin
doaj  

Experimental and Numerical Study on the Strain Behavior of Buried Pipelines Subjected to an Impact Load

open access: yesApplied Sciences, 2019
Long-distance oil and gas pipelines are inevitably impacted by rockfalls during geologic hazards such as mud-rock flow and landslides, which have a serious effect on the safe operation of pipelines. In view of this, an experimental and numerical study on
Feifei Dong   +4 more
doaj   +1 more source

Residual strength and toughness after impact loading for RC slabs strengthened with different layers of geogrid

open access: yesPrzegląd Naukowy Inżynieria i Kształtowanie Środowiska, 2023
This study presents an experiment for investigating the residual strength and toughness of reinforced concrete, RC, and slab reinforced by a geogrid as shrinkage reinforcement along with lower tensile steel reinforcement. Three different parameters were
Aya M. E. AHMED   +3 more
doaj   +1 more source

Analysis of impact load on tubing and shock absorption during perforating

open access: yesOpen Physics, 2019
During the past few decades, the technologies of the higher-shot densities, larger perforating guns and tubing-conveyed perforation (TCP) combined well testing have been used widely used for well completions.
Deng Qiao   +4 more
doaj   +1 more source

Mechanical response of aluminum foam sandwich structure under impact load

open access: yesMaterials Research Express, 2022
This study investigates the mechanical response of aluminum foam sandwich panels, sandwich cylindrical shells, and sandwich shallow shells under impact loads.
Wenke Lu, Junyan Zhang
doaj   +1 more source

Research on Dynamic Characteristics of Canopy and Column of Hydraulic Support under Impact Load

open access: yesEnergies, 2022
In the process of coal mining, the canopy and column play an important role in the safety support of hydraulic support. However, due to the complex and changeable coal seam conditions, the hydraulic support is significantly affected by the impact load ...
Qingliang Zeng   +4 more
doaj   +1 more source

An Approach to Predicting the Ballistic Limit of Thin Textile-Reinforced Concrete Plates Based on Experimental Results

open access: yesBuildings, 2023
In this article, a partial selection of experiments on enhancing the impact resistance of structural components with non-metallic, textile-reinforced concrete is discussed. The focus is on the experimental investigations in which the impact resistance of
Marcus Hering   +3 more
doaj   +1 more source

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