Results 101 to 110 of about 12,042 (216)
MachinesExtreme pantograph–catenary contact force (PCCF) oscillations pose a serious challenge to the stable coupling between pantograph and catenary in high-speed railway systems.
Zhun Han +7 more
doaj +1 more source
Optimal Control of a Tri-axial Spacecraft Simulator Test bed Actuated by Reaction Wheels [PDF]
فصلنامه علوم و فناوری فضایی, 2016 This article describes the details of a Tri-axial Spacecraft Simulator Testbed (TSST) that has been developed as part of a research program on spacecraft multi-body rotational dynamics and control in Space Research Laboratory (SRL) at K. N.
Hojat Taei +4 more
doaj
Attitude Control of Nanosatellite Using Optimal Quadratic Linear and Nonlinear Methods [PDF]
فصلنامه علوم و فناوری فضاییLinear algorithms are the most widely used method for satellite attitude control using reaction wheels because of their simplicity and low computational cost. The first part of the paper introduces different attitude determination and control algorithms,
Arash Abarghooei +2 more
doaj +1 more source
Deep Reinforcement Learning with embedded LQR Controllers
IFAC-PapersOnLine, 2020 This work has been accepted to IFAC for publication under a Creative Commons Licence CC-BY-NC ...
openaire +3 more sources
Actuator torques for LQR, Case I.
, 2022 Actuator torques for LQR, Case I.
Jamshed Iqbal (82302) +4 more
core +1 more source
Enhanced LQR Control for Unmanned Helicopter Based on Active Model
, 2007 为了解决无人直升机控制问题,通过把主动建模与LQR(Linear Quadratic Regulator)控制相结合,提出一种能补偿模型差的控制方法。该方法在悬停状态下,采用简化模型设计LQR控制器,并通过UKF(Un-scented-Kalman-Filter)在线估计简化模型与全状态模型的模型差,使用模型差作为补偿项对LQR控制增强。针对实际直升机动力学模型进行仿真,验证了基于UKF的估计和增强LQR控制的有效性。仿真实验结果证明,基于UKF的主动建模技术能够快速估计状态和参数变化 ...
赵新刚 +4 more
core
, 2017 This paper presents the dc-dc zeta converter control. In order to cope with parameters uncertainty, the convex polytope modeling of the dc-dc zeta converter is introduced.
Sarkawi, Hafez, Yoshito, Ohta
core +1 more source
MathematicsThe automotive suspension must perform competently to support comfort and safety when driving. Traditionally, car suspension control tuning is performed through trial and error or with classical techniques that cannot guarantee optimal performance under ...
Bala Abdullahi Magaji +3 more
doaj +1 more source
Study on maintaining formations during satellite formation flying based on SDRE and LQR
Open Physics, 2017 Due to the influence of various perturbations of space, satellites flying in formation cannot maintain specific configurations for long durations [1, 2]. In order to ensure that formation configurations are able to meet the requirements of space missions,
Ke Zhang, Zhenqi He, Meibo Lv
doaj +1 more source