scholarly journals Design and Experimental Study of Automatic Delivery Device for Granular Material Based on PLC

2018 ◽  
Keyword(s):  
Experimental Study ◽  
Granular Material ◽  
Delivery Device

scholarly journals Experimental study of shear bands formation in a granular material

2017 ◽  
Vol 140 ◽  
pp. 10001 ◽  
Author(s):  
Thai Binh Nguyen ◽  
Sean McNamara ◽  
Jérôme Crassous ◽  
Axelle Amon
Keyword(s):  
Experimental Study ◽  
Granular Material ◽  
Shear Bands

Experimental study of particle dampers applied to wind turbine blades to reduce low-frequency sound emission

2021 ◽  
Vol 263 (6) ◽  
pp. 71-82
Author(s):  
Braj Bhushan Prasad ◽  
Fabian Duvigneau ◽  
Daniel Juhre ◽  
Elmar Woschke
Keyword(s):  
Experimental Study ◽  
Granular Material ◽  
Wind Turbine ◽  
Laser Scanning ◽  
Turbine Blades ◽  
Low Frequency ◽  
Small Scale ◽  
Full Potential ◽  
Sound Emission ◽  
Wind Turbine Blades

Sound emission from an onshore wind turbine is one of the significant hurdles to use wind energy to its full potential. The vibration caused by the generator is transmitted to the blades, which radiates the sound to the surrounding. The purpose of this experimental study is to present a passive vibration reduction concept, which is based on the high damping properties of granular materials. The efficiency of this concept will be investigated using a laser scanning vibrometer device. For the experimental purpose in the laboratory, small-scale replicas inspired by the original configurations are used as reference geometries for the wind turbine generator and the blades. Vibrations of the prototype, with and without granular material filling, will be determined and compared with each other. The influence of the amount of granular material inside the structure is also investigated. Apart from this, different types of granular filling are examined with respect to their efficiency in reducing the amplitude of vibration of the structure while being as light as possible in order to design a lightweight solution, which increases the overall mass of the wind turbine marginally.

Some geotechnical characteristics of fragmented Queenston Shale

1985 ◽  
Vol 22 (3) ◽  
pp. 403-408 ◽  
Author(s):  
R. H. Caswell ◽  
B. Trak
Keyword(s):  
Experimental Study ◽  
Particle Size ◽  
Shear Strength ◽  
Granular Material ◽  
Key Words ◽  
Strength Properties ◽  
Stress Strain ◽  
Triaxial Apparatus ◽  
Geotechnical Characteristics ◽  
Strain Behaviour

This paper presents the results of an experimental study to determine the stress–strain behaviour of fragmented Queenston Shale from Russell, Ontario and to investigate how its strength properties altered when the material was subjected to repeated slaking cycles. Slaking tests showed that large (cobble-size) blocks of the material degrade rapidly to a particle size of 20 mm upon exposure to water and air. Consolidated drained tests in a large triaxial apparatus under monotonic loading conditions on specimens of fresh and slaked material were performed. They indicate that the shear strength of fragmented Queenston Shale of particle size smaller than 20 mm is not affected by slaking. Key words: Queenston Shale, compaction shale, granular material, rockfill, slaking, shear strength, consolidated drained tests.

scholarly journals EXPERIMENTAL STUDY ON DEFORMATION PROPERTY OF FIBROUS MATERIAL IN FIBER REINFORCED GRANULAR MATERIAL

2015 ◽  
Vol 30 (0) ◽  
pp. 89-96
Author(s):  
Shintaro MIYAMOTO ◽  
Noriyuki NAYASUFUKU ◽  
Ryohei ISHIKURA ◽  
Kiyonobu KASAMA
Keyword(s):  
Experimental Study ◽  
Granular Material ◽  
Fibrous Material ◽  
Deformation Property ◽  
Fiber Reinforced
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