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Impact Velocity Measurement Method Based on Trajectory and Impact Position [PDF]
Sensors, 2022 The impact velocity of falling weight is an instantaneous quantity. Currently, measurement of impact velocity relies on high-speed sensors to capture the moment of impact. The trajectory-position measurement method (TPMM) is proposed in this study.
Hui Liu, Jingfan Wang, Yuantao Wu
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Mechanical Engineering Journal, 2016 In this paper the low-velocity and high-velocity impact damage in a carbon fiber reinforced plastic (CFRP) laminate with toughened interlayers was experimentally characterized.
Rozaini OTHMAN +2 more
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Geosciences, 2020 The terminal velocity of hailstones is an essential quantity in hail research. It is an important value for the kinetic energy of hailstones and has to be carefully considered when laboratory hail impact testing is being planned.
Christian Dieling +2 more
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High-Velocity Impact Welding Process: A Review
Metals, 2019 High-velocity impact welding is a kind of solid-state welding process that is one of the solutions for the joining of dissimilar materials that avoids intermetallics. Five main methods have been developed to date.
Huimin Wang, Yuliang Wang
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Dynamic splitting tensile performance of new and old concrete after high temperature treatment [PDF]
Archives of Civil Engineering, 2021 In order to study the dynamic splitting tensile properties of new and old concrete after high temperature treatment, the effects of different impact velocities and temperatures on failure modes, dynamic splitting strength and energy absorption of new and
Hai Cao
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Shenzhen Daxue xuebao. Ligong ban, 2022 In order to study the impact resistance and dynamic damage rule of reinforced concrete (RC) beams strengthened with carbon fiber reinforced plastics (CFRP) under different impact velocities, four CFRP strengthened RC beams were tested by using a drop ...
ZHANG Yafang +3 more
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Investigation of factors enhancing droplets spreading on leaves with burrs
Frontiers in Plant Science, 2023 IntroductionSpread effect is one of the aspects on deposition quality evaluation of pesticide droplets. It could be affected by many factors such as the microstructure of the target plant leaf surface, physical features of the droplets, and the ...
Pei Wang +7 more
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Simultaneous velocity, impact and force control [PDF]
Robotica, 2009 SUMMARYIn this paper, we propose a control method to achieve three objectives simultaneously: velocity regulation during free motion, impact damping and finally force reference tracking. During impact, the parameters are switched in order to dissipate the energy of the system as fast as possible and the optimal switching criteria are deduced.
Ranko Zotovic Stanisic +1 more
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Design and Analysis of a Fluid-Filled RF MEMS Switch
Sensors, 2023 In the present study, a fluid-filled RF MEMS (Radio Frequency Micro-Electro-Mechanical Systems) switch is proposed and designed. In the analysis of the operating principle of the proposed switch, air, water, glycerol and silicone oil were adopted as ...
Hongyu Zhu +3 more
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Low velocity impact on polymeric foams [PDF]
Journal of Cellular Plastics, 2010 The effect of the impactor nose shape on the penetration behavior of polymethacrylimide foams is investigated in the velocity range of 4—8 m/s. It is observed from experimental results that penetration load depends on the geometry of the impactor and the density of the foam.
Flores-Johnson, E. A., Li, Q. M.
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