Results 11 to 20 of about 1,016,656 (280)
Fundamental Aerodynamics of Non-spinning Soccer Ball
Korean Journal of Sport Science, 2010 null 홍성찬, null 아사히 타케시
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Ball Motion Control in the Table Tennis Robot System Using Time-Series Deep Reinforcement Learning
IEEE Access, 2021 One of the biggest challenges hindering a table tennis robot to play as well as a professional player is the ball’s accurate motion control, which depends on various factors such as the incoming ball’s position, linear, spin velocity and so
Luo Yang +3 more
doaj +1 more source
Evaluation of Aerodynamic Characteristics in Oscillatory Coning Using CFD Methods [PDF]
Proceedings of the 9th European Conference for Aerospace Sciences,
2022, 2022 The wind tunnel rotary-balance testing is widely used in aircraft dynamics to characterise aerodynamics at moderate and high angles of attack during stall and spin regimes. In such experiments an aircraft test model is rotated along the wind-tunnel free-stream velocity vector allowing the measurement of aerodynamic characteristics in steady rotational ...
arxiv +1 more source
Investigation of the Aerodynamic Drag of Baseballs with Gyro Spin [PDF]
The 13th Conference of the International Sports Engineering Association, 2020 The following considers drag measurements of baseballs with backspin (spin axis horizontal and normal to trajectory) and gyro spin (spin axis parallel to trajectory) orientations. Balls were propelled through still air in a laboratory setting at 36 m/s and spin ranging from 1250 rpm to 1750 rpm.
Jeff Kensrud, Lloyd V. Smith, Bin Lyu
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Flying spin qualities testing of airplane [PDF]
Tehnika, 2015 In this paper is presented the theoretical analysis of origins and characteristics of spinning motion. There are precise explanation of every stage spin flight and basic meaning of notion.
Kostić Čedomir J. +2 more
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Bifurcation Flight Dynamic Analysis of a Strake-Wing Micro Aerial Vehicle
Applied Sciences, 2021 Non-linear phenomena are particularly important in -flight dynamics of micro-class unmanned aerial vehicles. Susceptibility to atmospheric turbulence and high manoeuvrability of such aircraft under critical flight conditions cover non-linear aerodynamics
Mirosław Nowakowski +3 more
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The effect of aerodynamics on table tennis
Theoretical and Natural Science, 2023 In the table tennis sport category, the different spin formula of table tennis ball will show different motion state, in which the important physical knowledge that is permeated aerodynamics.
Qinghua Yang
semanticscholar +1 more source
Aerodynamics in the beautiful game
Physics today, 2022 We consider the aerodynamics of football, specifically, the interaction between a ball in flight and the ambient air. Doing so allows one to account for the characteristic range and trajectories of balls in flight, as well as their anomalous deflections ...
J. M. Bush
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Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Purpose MRI is increasingly used for brain and head and neck radiotherapy treatment planning due to its superior soft tissue contrast. Flexible array coils can be arranged to encompass treatment immobilization devices, which do not fit in diagnostic head/neck coils. Selecting a flexible coil arrangement to replace a diagnostic coil should rely
Evangelia Kaza +6 more
wiley +1 more source
Aerodynamic Analysis of a Spinning Missile with Dithering Canards [PDF]
Journal of Spacecraft and Rockets, 2002 A generic spinning missile with dithering canards is used to demonstrate the utility of an overset structured grid approach for simulating the aerodynamics of rolling airframe missile systems. The approach is used to generate a modest aerodynamic database for the generic missile.
Tor A. Nygaard, Robert L. Meakin
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