Underwater Robot with Negative Pressure Effect Plates for Maintenance of Underwater Structures

2019 ◽  
Author(s):  
Daiki Yamada ◽  
Takahiro Takebayashi ◽  
Hirotaka Kato ◽  
Norimitsu Sakagami ◽  
Sadao Kawamura
Keyword(s):  
Negative Pressure ◽  
Pressure Effect ◽  
Underwater Robot ◽  
Underwater Structures

scholarly journals Flexible PEBAX/graphene electromagnetic shielding composite films with a negative pressure effect of resistance for pressure sensors applications

RSC Advances ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 1535-1543 ◽  
Author(s):  
Biao Zhao ◽  
Xi Zhang ◽  
Jiushuai Deng ◽  
Chun Zhang ◽  
Yang Li ◽  
...  
Keyword(s):  
Negative Pressure ◽  
High Efficiency ◽  
Pressure Effect ◽  
Composite Films ◽  
Pressure Sensors ◽  
Electromagnetic Shielding ◽  
Good Sensitivity ◽  
Emi Shielding ◽  
Shielding Properties

Graphene/PEBAX composite films present high-efficiency EMI shielding properties and good sensitivity as well as sensing stability.

Development of a Dam Body Inspection Robot by using Negative-Pressure Effect Plate

2016 ◽  
Vol 2016 (0) ◽  
pp. 1P1-17b2
Author(s):  
Yousuke YUMOTO ◽  
Sonoko SAKAI ◽  
Norimitsu SAKAGAMI ◽  
Sadao KAWAMURA
Keyword(s):  
Negative Pressure ◽  
Pressure Effect ◽  
Inspection Robot

Optimization Design and Simulation of Negative-Pressure Removing-Chip Mechanism of Deep Hole

2012 ◽  
Vol 215-216 ◽  
pp. 105-110 ◽  
Author(s):  
Biao Wang ◽  
Li Qin Zhao ◽  
Qing Yan Ma
Keyword(s):  
Negative Pressure ◽  
Optimization Design ◽  
Pressure Effect ◽  
Influence Factors ◽  
Hole Drilling ◽  
Hydraulic Pressure ◽  
Drilling Process ◽  
Deep Hole ◽  
Deep Hole Drilling ◽  
Injection Angle

In the deep-hole drilling process, chips can not be easily removed, so the influence factors of the negative-pressure removing-chips were analyzed on the existing DF negative-pressure removing-chip mechanism by the hydraulic pressure theory and the injection angle κ and negative pressure gap S were analyzed with FLUENT software. The results show that negative pressure effect were best in 32°of κ and 0.4 mm of S and negative pressure effect are better in 28°of κ and 0.5mm of S , which lay good theoretical foundation for the optimization and characteristics of negative pressure mechanism in near-dry deep-hole drilling.

Development of dam inspection robot with negative pressure effect plate

2019 ◽  
Vol 36 (8) ◽  
pp. 1422-1435 ◽  
Author(s):  
Norimitsu Sakagami ◽  
Yosuke Yumoto ◽  
Takahiro Takebayashi ◽  
Sadao Kawamura
Keyword(s):  
Negative Pressure ◽  
Pressure Effect ◽  
Inspection Robot
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