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Effects of pitching motion profile on energy harvesting performance of a semi-active flapping foil using immersed boundary method

Ocean Engineering, 2018
Effects of pitching motion profile on energy harvesting performance of a semi-active flapping foil are numerically studied using immersed boundary method.
Fang-Bao Tian, Wenquan Wang
exaly   +2 more sources

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Pilots' Use of Pitch and Heave Motion Cues in a Pitch Control Task

AIAA Modeling and Simulation Technologies Conference and Exhibit, 2008
During pitch rotation of the aircraft, a pilot, seated well in front of the aircraft center of gravity, is subjected to rotational pitch and vertical heave motion. The heave motion is a combination of the vertical motion of the aircraft center of gravity and heave motion as a result of the pitch rotation.
Zaal, P., Pool, D., De Bruin, J., Mulder, M., van Paassen, M.   +4 more
openaire   +2 more sources

Use of Pitch and Heave Motion Cues in a Pitch Control Task

Journal of Guidance, Control, and Dynamics, 2009
During pitch rotation of the aircraft, a pilot, seated in front of the aircraft center of gravity, is subjected to rotational pitch and vertical heave motion. The heave motion is a combination of the vertical motion of the aircraft center of gravity and the heave motion as a result of the pitch rotation.
Zaal, P., Pool, D., De Bruin, J., Mulder, M., van Paassen, M.   +4 more
openaire   +2 more sources

Modeling and control of pitching motion of a wheeled mobile robot with variable-pitch blades

2015 IEEE/SICE International Symposium on System Integration (SII), 2015
This paper presents a control strategy for a wheeled mobile robot with variable pitch blades which make it highly mobile over irregular terrain. A mathematical model with respect to pitching motion of the robot necessary to climb a stair is developed, and then a nonlinear controller for the pitching motion is proposed, employing input-output ...
Makoto Yokoyama, Masanori Isawa, Kazuya Takahashi   +2 more
openaire   +1 more source

Foot function affects pitching motion: players with floating toes show inconsistent pitching motion

Sports Biomechanics
The purpose of this study was to evaluate how floating toes affect baseball pitching motion. Fifteen young male baseball players pitched from a pitching mound after physical examination, including floating toes, determining if any toes are not in contact with the ground.
Hideaki, Nagamoto, Takumi, Okunuki, Kazuki, Wakamiya, Toshihiro, Maemichi, Toshimi, Aizawa, Toshimasa, Yanai, Tsukasa, Kumai   +6 more
openaire   +2 more sources

The pitching motion of a circular disk

Journal of Fluid Mechanics, 1963
The interaction of a pitching circular disk with the motion induced by the disk in the surrounding fluid is investigated in this paper. MacCamy's (1961) method of simplifying the three-dimensional problem of a circular disk to the two-dimensional problem is found to apply in the present analysis. The integral equation is solved numerically to determine
openaire   +1 more source

A micro pitch and roll motion sensor

TRANSDUCERS '03. 12th International Conference on Solid-State Sensors, Actuators and Microsystems. Digest of Technical Papers (Cat. No.03TH8664), 2004
This paper describes a novel piezoresistive-type microsensor that could be directly mounted on the existing slider/gimbal system of a hard disk drive to simultaneously measure the pitch and roll angles of the slider. The size of the fabricated microsensor is designed as 1 mm/spl times/1 mm/spl times/0.1 mm for picoslider applications.
Jongbaeg Kim, Liwei Lin
openaire   +1 more source

Efficient thrust enhancement by modified pitching motion

Journal of Fluid Mechanics, 2021
Thrust and/or efficiency of a pitching foil (mimicking a tail of swimming fish) can be enhanced by tweaking the pitching waveform. The literature, however, show that non-sinusoidal pitching waveforms can enhance either thrust or efficiency but not both simultaneously.
Zaka Muhammad, Md. Mahbub Alam, Bernd R. Noack   +2 more
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Stationary resonant pitching motions of a controlled satellite.

AIAA Journal, 1969
Summary: A controlled satellite moving in a slightly elliptical orbit, with one axis of the satellite perpendicular to the orbit plane, is considered. The control system involves two single-degree-of-freedom gyroscopes in a so-called roll-vee configuration.
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Dynamic Pitching Moment Measurement of a Wing Executing Pitch and Plunge Motion

10th International Energy Conversion Engineering Conference, 2012
nite wing model, free to pitch about its quarter-chord, is driven through large-amplitude plunge oscillations in the open jet of a low speed wind tunnel. The history of the pitch and plunge motions is used to derive lift and pitching moment behavior, through a range of rates.
Kevin Goal, Daniel Sun, Vrishank Raghav, Akshaya Srivastava, Narayanan Komerath   +4 more
openaire   +1 more source