Results 21 to 30 of about 91,489 (305)

Driving automation: Learning from aviation about design philosophies [PDF]

open access: yes, 2007
Full vehicle automation is predicted to be on British roads by 2030 (Walker et al., 2001). However, experience in aviation gives us some cause for concern for the 'drive-by-wire' car (Stanton and Marsden, 1996). Two different philosophies have emerged in
Harris, D, Stanton, NA, Young, MS
core   +1 more source

A Unified Approach for Underwater Homing and Docking of over-Actuated AUV

open access: yesJournal of Marine Science and Engineering, 2021
During the implementation of time-consuming tasks such as underwater observation or detection, AUV has to face a difficult and urgent problem that its working duration is greatly shortened by the limited energy stored in the battery device.
Mingjiu Zuo   +3 more
doaj   +1 more source

Design and Verification of Deep Submergence Rescue Vehicle Motion Control System

open access: yesSensors, 2023
A six degree-of-freedom (DOF) motion control system for docking with a deep submergence rescue vehicle (DSRV) test platform was the focus of this study.
Chunmeng Jiang   +7 more
doaj   +1 more source

Gossamer roadmap technology reference study for a solar polar mission [PDF]

open access: yes, 2013
A technology reference study for a solar polar mission is presented. The study uses novel analytical methods to quantify the mission design space including the required sail performance to achieve a given solar polar observation angle within a given ...
Appourchaux, T   +15 more
core   +1 more source

Dynamic Response Characteristics of the Hydraulic Rotary System of an Azimuth Thruster for a Dynamic Positioning Vessel

open access: yesJournal of Marine Science and Engineering, 2023
The composition characteristics and working principle of the hydraulic rotary system of the azimuth thruster were analyzed. The mathematical model of the rotary dynamic system of the pump-controlled hydraulic motor driving the gear reduction mechanism ...
Ruiqi Liu   +3 more
doaj   +1 more source

Workspace optimization of azimuth thrusters applied by dynamic positioning

open access: yesZhongguo Jianchuan Yanjiu, 2020
Objectives In order to make the dynamic positioning of azimuth thrusters respond to external environmental forces in time, avoid the large-scale rotation of the thrusters and achieve high precision dynamic fixed-point positioning control, research on the
SHANG Liubin, WANG Wei, LIU Zhihua
doaj   +1 more source

The Effect of Brand Thrust on Financial Performance of Property Companies in Indonesia Capital Market

open access: yesJurnal Aplikasi Bisnis dan Manajemen, 2020
The rapid economic growth and development encourage companies to have sustainable competitive advantage in order to compete in the market. One of the strategies to face this competition is building a good brand image.
Njo Anastasia, Dewi Pricilia Sari
doaj   +1 more source

Controllability Analysis and Degraded Control for a Class of Hexacopters Subject to Rotor Failures [PDF]

open access: yes, 2014
This paper considers the controllability analysis and fault tolerant control problem for a class of hexacopters. It is shown that the considered hexacopter is uncontrollable when one rotor fails, even though the hexacopter is over-actuated and its ...
Cai, Kai-Yuan, Du, Guang-Xun, Quan, Quan
core   +1 more source

Implementation of Heading Angle and Depth Keeping Control of ROV with Multiple Thrusters by Thrust Allocation

open access: yes한국해양공학회지, 2018
This study deals with the heading angle and depth keeping control technique for an ROV with multiple horizontal and vertical thrusters by thrust allocation.
Suk-Min Yoon, Chong-Moo Lee, Kihun Kim
doaj   +1 more source

Reduced Actuator Set for Pressure Control and Thrust Distribution for Multinozzle Propulsion Systems

open access: yesInternational Journal of Aerospace Engineering, 2017
This study investigated an approach to reduce the number of actuators used for internal pressure control and thruster allocation in a multinozzle solid propulsion system.
Yeerang Lim   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy