Results 11 to 20 of about 2,437 (216)

Parameter Optimization Method for Power System of Medium-Sized Bus Based on Orthogonal Test

open access: yesEnergies, 2022
Accurate and reasonable matching design is a current and difficult point in electric vehicle research. This paper presents a parameter optimization method for the power system of a medium-sized bus based on the combination of the orthogonal test and the ...
Xingxing Wang   +7 more
doaj   +1 more source

Analysis of Tire Acoustic Cavity Resonance Energy Transmission Characteristics in Wheels Based on Power Flow Method

open access: yesApplied Sciences, 2021
As a kind of low-frequency vehicle interior noise, tire acoustic cavity resonance noise plays an important role, since the other noise (e.g., engine noise, wind noise and friction noise) has been largely suppressed.
Wei Zhao   +4 more
doaj   +1 more source

Research on dynamic characteristics of wind turbine tower with different analysis methods

open access: yesJournal of Hebei University of Science and Technology, 2015
A wind turbine located in Yunnan is taken as an example in this paper. By using the analytical method and the finite element method, the modal analysis of wind turbine tower is carried out, then the structural dynamic behavior is obtained.
Ji YAO   +6 more
doaj   +1 more source

On the Influence of Ride Height Changes on the Aerodynamic Performance of Wheel Designs

open access: yesInternational Journal of Automotive Engineering, 2015
On the road a passenger car's ride height is elevated both by the radial expansion of the tires due to centrifugal forces and aerodynamic lift. Wheel size and design influence these forces and therefore may affect aerodynamic drag more than predicted ...
Schnepf Bastian   +2 more
doaj   +1 more source

Effects of Detailed Tire Geometry and Wheel Rotation on the Aerodynamic Performance of Deflectors

open access: yesInternational Journal of Automotive Engineering, 2023
Wheels and tires account for approximately 25% of the overall aerodynamic drag on a vehicle. Though researchers have investigated the accurate representation of rotating tires and wheels in aerodynamic simulations, they primarily focused on the ...
Akihiro Nakata   +3 more
doaj   +1 more source

DESIGN OF WORK SLOW WIND-WHEEL POWER PLANT WITH PADDLES OF PERMANENT TYPE AFTER ITS RADIUS

open access: yesInternational Journal of Computing, 2014
The task of optimizing velocity rotation of low-speed wind-wheel and optimal profile of its paddles according to criterion at most possible selection of power from weak air flow is set and worked out in the article. The method of determination the necessary angles of own turn of paddles and axis of rotation of wide-wheel shaft with higher speed of air ...
Roman Zinko, Taras Kruts, Ihor Lozovyj
openaire   +2 more sources

Wave diffraction of a hybrid wind turbine foundation with a double-layer aquaculture cage

open access: yesFrontiers in Marine Science, 2022
A hybrid wind turbine foundation combined with a double-layer offshore net cage for marine aquaculture is proposed in this paper. To study the diffraction and hydrodynamic loads on the structure for waves with small steepness, a numerical model was ...
Xiaokang Zhu   +3 more
doaj   +1 more source

Analysis of aerodynamic and aeroacoustics of full scale landing gear

open access: yesXibei Gongye Daxue Xuebao, 2022
The aerodynamic noise of a landing gear is an important source of airframe noise. The analysis of its noise characteristics plays an important role in the design of a low-noise landing gear.
TIAN Siyuan   +5 more
doaj   +1 more source

The coupled vibration of train and bridge as high-speed trains meet in crosswind [PDF]

open access: yesRailway Sciences, 2022
Purpose – This paper aims to study the influence of aerodynamics force of trains passing each other on the dynamic response of vehicle bridge coupling system based on numerical simulation and multi-body dynamics and put forward the speed threshold for ...
Wenhua Guo, Xinmin Hong, Chunxia Chen
doaj   +1 more source

Analysis and multi-objective optimization design of wheel based on aerodynamic performance

open access: yesAdvances in Mechanical Engineering, 2019
In the past studies, the influence of wheel structure design and optimization on the aerodynamic drag of car and heat transfer performance of brake disc was less studied.
Dengfeng Wang   +3 more
doaj   +1 more source

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