Results 1 to 10 of about 21,021,184 (254)

An Optimization Method of High-Speed Railway Rescheduling to Meet Unexpected Large Passenger Flow

open access: yesJournal of Advanced Transportation, 2022
In the rapidly changing multimodal transportation market, not only the obligation in providing train services but also the responsibility in helping other transportation modes to meet emergencies are instrumental for maximizing the generalized benefit of
Junduo Zhao   +3 more
doaj   +1 more source

Alleviation of Dynamic Stall Moments by Morphing Flap

open access: yesHangkong gongcheng jinzhan, 2021
Active deflection of trailing edge control surface can reduce the adverse effect of airfoil dynamic stall on aerodynamic characteristics.This study set out to investigate the performance of morphing flap on dynamic stall alleviation.
OUYANG Yan   +3 more
doaj   +1 more source

Model Predictive Feedforward Control for High-Dynamic Speed Control of Combustion Engine Test Beds

open access: yesIEEE Open Journal of Industry Applications, 2021
Hardware-in-the-Loop tests have become a key factor in decreasing development time of various drive systems. In this context, high performance test beds, where feedback control plays a major role, are necessary to meet the demanding requirements such as ...
Dennis Erdogan   +3 more
doaj   +1 more source

Design of a New Catheter Operating System for the Surgical Robot

open access: yesApplied Bionics and Biomechanics, 2021
In interventional surgery, the manual operation of the catheter is not accurate. It is necessary to operate the catheter skillfully and effectively to protect the surgeon from radiation injury.
Xu Ma   +4 more
doaj   +1 more source

Automated Vehicle’s Overtaking Maneuver with Yielding to Oncoming Vehicles in Urban Area Based on Model Predictive Control

open access: yesApplied Sciences, 2021
The rapid development of automated driving technology has brought many emerging technologies. The collision avoidance (CA) function by braking and/or steering maneuver of advanced driver assistance systems (ADAS), which contributes to the improvement of ...
Yan Zhang   +2 more
doaj   +1 more source

A Hybrid Dragonfly Algorithm for Efficiency Optimization of Induction Motors

open access: yesSensors, 2022
Induction motors tend to have better efficiency on rated conditions, but at partial load conditions, when these motors operate on rated flux, they exhibit lower efficiency.
Niraj Kumar Shukla   +2 more
doaj   +1 more source

Torque effect on vibration behavior of high-speed train gearbox under internal and external excitations

open access: yesRailway Engineering Science, 2023
The high-speed train transmission system, experiencing both the internal excitation originating from gear meshing and the external excitation originating from the wheel–rail interaction, exhibits complex dynamic behavior in the actual service environment.
Yue Zhou   +7 more
doaj   +1 more source

Traffic Analysis of Specific Motorways with Different Usage Characteristics in Hungary with the Method of Section Control

open access: yesActa Technica Jaurinensis, 2020
This article presents the result of the large-scale average speed analysis made in Hungary at two motorways in 12 different sections. During the analysis speeds of normal and reduced operations were analysed.
Zsolt Sándor, Ákos Monostori
doaj   +1 more source

Self-Tuning Neural Network PID With Dynamic Response Control

open access: yesIEEE Access, 2021
PID controllers are widely used and adaptable to various types of systems. However, for the response to be adequate under different conditions, the PID gains must be adjusted. The tuning is made according to the difference between the reference value and
Omar Rodriguez-Abreo   +4 more
doaj   +1 more source

Chatter Control by Spindle Speed Variation in High-Speed Milling [PDF]

open access: yes, 2009
High-speed milling operations are often limited by regenerative vibrations. The aim of this paper is to analyze the effect of spindle speed variation on machine tool chatter in high-speed milling. The stability analysis of triangular and sinusoidal shape
Arnaud, Lionel   +3 more
core   +2 more sources

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