Study on high-speed stability of automobile based on aerodynamic lift feedback

2021 ◽  
Vol 10 (3) ◽  
pp. 293
Author(s):  
Shuichang Liu ◽  
Fengzhao Mao ◽  
Qibo Lin ◽  
Ye Xiao ◽  
Jiaqi Shi ◽  
...  
Keyword(s):  
High Speed ◽  
Speed Stability ◽  
Aerodynamic Lift

Study on high-speed stability of automobile based on aerodynamic lift feedback

2021 ◽  
Vol 10 (3) ◽  
pp. 293
Author(s):  
Yong Zhang ◽  
Jiaqi Shi ◽  
Ye Xiao ◽  
Qibo Lin ◽  
Fengzhao Mao ◽  
...  
Keyword(s):  
High Speed ◽  
Speed Stability ◽  
Aerodynamic Lift

scholarly journals Design and aerodynamic analysis of an Automotive Adaptive Rear Diffuser

2021 ◽  
Vol 9 (8) ◽  
pp. 1611-1626
Author(s):  
Heet Patel
Keyword(s):  
Fuel Economy ◽  
High Speed ◽  
Electronic Circuit ◽  
Aerodynamic Drag ◽  
Vital Role ◽  
Aerodynamic Forces ◽  
Aerodynamic Efficiency ◽  
Speed Stability ◽  
Diffuser Angle ◽  
Aerodynamic Lift

Abstract: Traditional vehicles are designed to bring out the best performance, good fuel economy, fewer emissions, and good high-speed stability. In this process of designing a vehicle, the underbody geometry of a car plays a vital role and is often neglected because of its complicated design bits. Though the presence of uneven surfaces causes the layers of air to separate resulting in generating turbulence. This report is about designing an active rear diffuser of a car. The rear diffuser is an aerodynamic device that is installed in the end part of the underbody of a car. Diffuser now a day is quite a common aerodynamic device that is used in performance cars. The main moto of attaching a diffuser is to reduce the wake produced behind the car and help the streamlines to converge better. The prime focus of this study is to design an active rear diffuser that will not only help in providing great high-speed stability and aerodynamic efficiency but will also use the aerodynamic forces adversely to help the car stop faster and on its track. This is made possible first by understanding the effects of diffuser angle on the aerodynamic forces acting on the car. Further, to actually transform the computational values into a working model, an electronic circuit is designed which mimics the exact movement of the diffuser according to the speed and other driving conditions. Keywords: Adaptive, diffuser, automobile, aerodynamic, aerodynamic Drag, aerodynamic Lift

The Influence of Aerodynamic Lift on High Speed Stability

1999 ◽  
Author(s):  
Jeff Howell ◽  
Geoff Le Good
Keyword(s):  
High Speed ◽  
Speed Stability ◽  
Aerodynamic Lift

High-speed stability of a rigid rotor supported by aerostatic journal bearings with compound restrictors

2011 ◽  
Vol 44 (1) ◽  
pp. 9-17 ◽  
Author(s):  
Yuta Otsu ◽  
Kei Somaya ◽  
Shigeka Yoshimoto
Keyword(s):  
High Speed ◽  
Journal Bearings ◽  
Rigid Rotor ◽  
Speed Stability

AERODYNAMIC LIFT FORCES ON MULTIHULLED MARINE VEHICLES

2021 ◽  
Vol 152 (A2) ◽  
Author(s):  
A G W Williams ◽  
M Collu ◽  
M H Patel
Keyword(s):  
High Speed ◽  
Vehicle Stability ◽  
Aerodynamic Design ◽  
Forward Motion ◽  
Marine Vehicles ◽  
Marine Transport ◽  
Stability Model ◽  
Lift Forces ◽  
High Payload ◽  
Aerodynamic Lift

The need for high-speed high-payload craft has led to considerable efforts within the marine transport industry towards a vehicle capable of bridging the gap between conventional ships and aircraft. One such concept uses the forward motion of the craft to create aerodynamic lift forces on a wing-like superstructure and hence, reduce the displacement and skin friction. This paper addresses the specific aerodynamic design of multihull for optimal lift production and shows that significant efficiency can be achieved through careful shaping of a ducted hull, with lift-to-drag ratios of nearly 50 for a complete aerodynamic hull configuration. Further analysis is carried out using a hybrid vehicle stability model to determine the effect of such aerodynamic alleviation on a theoretical planing hull. It is found that the resistance can be halved for a fifty metre, three hundred tonne vehicle with aerodynamic alleviation travelling at 70 knots. Results are presented for a candidate vessel.

Exploring research on high-speed vehicle attitude control with plasma virtual flap manipulation

2018 ◽  
Vol 233 (10) ◽  
pp. 3627-3634
Author(s):  
Wang Xin ◽  
Yan Jie ◽  
Zhang Yerong
Keyword(s):  
Attitude Control ◽  
High Speed ◽  
Long Duration ◽  
Aerodynamic Control ◽  
Control Authority ◽  
Attitude Controller ◽  
Lift And Drag ◽  
Cruise Flight ◽  
Aerodynamic Lift ◽  
High Speed Vehicle

This work provides an attitude solution for a high-speed vehicle using plasma aerodynamic control called “plasma virtual flap” manipulation. This paper describes the concept of using plasma active control as plasma virtual flap for off-design attitude manipulation problem. Design of an attitude controller considering plasma aerodynamic effects for the high-speed vehicle is presented. The aerodynamic lift and drag force features in the high speed, long duration cruise flight with plasma actuator effect are introduced, where the estimated models and attitude controller are established. This paper documents the development and capabilities of plasma virtual flap attitude control authority. Simulation results are presented to exhibit the effectiveness of the proposed method.

High-speed Rotation and Speed Stability of the Sodium-driven Flagellar Motor inVibrio alginolyticus

1995 ◽  
Vol 251 (1) ◽  
pp. 50-58 ◽  
Author(s):  
Kazumasa Muramoto ◽  
Ikuro Kawagishi ◽  
Seishi Kudo ◽  
Yukio Magariyama ◽  
Yasuo Imae ◽  
...  
Keyword(s):  
High Speed ◽  
Flagellar Motor ◽  
High Speed Rotation ◽  
Speed Rotation ◽  
Speed Stability

Improvement of high-speed stability of an aerostatic bearing-rotor system using an active magnetic bearing

2014 ◽  
Vol 15 (12) ◽  
pp. 2565-2572 ◽  
Author(s):  
Hee-Do Jang ◽  
Jongwon Kim ◽  
Dong-Chul Han ◽  
Dong-Young Jang ◽  
Hyeong-Joon Ahn
Keyword(s):  
High Speed ◽  
Magnetic Bearing ◽  
Rotor System ◽  
Active Magnetic Bearing ◽  
Aerostatic Bearing ◽  
Speed Stability

HIGH SPEED STABILITY AND CONTROL PROBLEMS

1959 ◽  
pp. 1-9:36
Author(s):  
Malcolm J. Abzug
Keyword(s):  
High Speed ◽  
Control Problems ◽  
Stability And Control ◽  
Speed Stability ◽  
And Control
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