Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Shi-Hwan Oh"'
Publikováno v:
Transactions of the Korean Society for Noise and Vibration Engineering. 21:828-833
A reaction wheel assembly(RWA) is the largest disturbance source that can induce high frequency micro-vibration on an optical payload of satellites. To ensure a tight pointing-stability budget of satellites, the RWA disturbance effect on spacecraft s
Publikováno v:
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. :990-994
Actuator-induced disturbances are among the most crucial factors in correct spacecraft attitude pointing and stability for fine attitude control problems. In order to develop a CMG as an actuator for fine controls, CMG-induced disturbances should be
Publikováno v:
Journal of the Korean Society for Aeronautical & Space Sciences. 38:702-708
Reaction wheel assemblies(RWA) are expected to be one of the largest high frequency disturbance sources to the optical payload of satellites. To ensure the tight pointing-stability budget and high image quality of satellites, a vibration isolation de
Publikováno v:
Transactions of the Korean Society for Noise and Vibration Engineering. 20:263-271
A reaction wheel is commonly used, as an important actuator, to control the attitude of a satellite. Operation of the reaction wheel plays a role of an excitation source to loading equipment inside the satellite. As requirements for environmental vib
Publikováno v:
Journal of Astronomy and Space Sciences. 25:481-490
Reaction wheel is one of the actuators for spacecraft attitude control, which generates torque by changing an inertial rotor speed inside of the wheel. In order to generate required torque accurately and estimate an accurate angular momentum, wheel s
Publikováno v:
Journal of the Korean Society for Aeronautical & Space Sciences. 36:48-56
Nowadays, CMG(Control Moment Gyros) becomes one of the essential actuators for satellite attitude control. The method to define the key requirements of CMG is suggested to avoid CMG`s singularity problem for the limited envelope of angular momentum o
Publikováno v:
The Journal of the Acoustical Society of America. 111:180-188
An active feedforward control system has been developed to reduce the road booming noise that has strong nonlinear characteristics. Four acceleration transducers were attached to the suspension system to detect reference vibration and two loudspeaker
Publikováno v:
Automatica. 36:1041-1048
In this paper, we propose a method to design robust sliding hyperplanes in the presence of mismatched parametric uncertainty based on quadratic stability. The robust sliding hyperplane is constructed from a Riccati inequality associated with quadrati
Publikováno v:
SAE Technical Paper Series.
Publikováno v:
Active Sound and Vibration Control: theory and applications ISBN: 9780852960387
This chapter presents an application of active noise control techniques for passenger comfort in cars. At the analysis stage nonstationary vibrations of the front and rear wheels are generated by nonuniform road profiles and change of vehicle speed.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04458093cd2e95b234bd76cb71e5f245
https://doi.org/10.1049/pbce062e_ch14
https://doi.org/10.1049/pbce062e_ch14