Numerical investigations are carried out to investigate the reduction in aerodynamic drag of a vehicle by employing dimpled non-smooth surface. The computational scheme was validated experimental data reported literature. mechanism and effect surface on were revealed analysing flow field structure wake. In order maximize performance surface, an optimization method based Kriging surrogate model employed design Four parameters selected as variables, 16-level design-of-experiments orthogonal...

Ride comfort and handling performances are known conflicts for off-road vehicles. Recent publications focus on passenger vehicles class B C roads, while, vehicles, they should be able to run rougher roads: D, E, or F roads. In this paper, a quarter vehicle model with nonlinear damping is established analyze the suspension performance of medium road. The ride comfort, road holding, indicated by weighted root mean square (RMS) value vertical acceleration sprung mass, travel, tire deflection....

Many crystals in nature have simple interatomic microstructures, such as cubic (SC), body-centered (BCC), and face-centered (FCC) lattice symmetries, making these structures extremely stable. Inspired by arrangements, a series of architected micro-channel heat exchangers with rationally designed 3D microstructures were established. A multi-physics mathematical model using thermal-fluid-structure interaction (TFSI) was employed to investigate the coupled transfer performance mechanical...

Abstract With the development of automated vehicles, researches related to vehicle platoon (AVP) have received more and attention. AVP is considered one effective means alleviate traffic congestion reduce energy consumption. This paper studies a three‐layer method avoiding obstacle vehicles in by switching formation for heavy platoon. In decision‐making layer, system based on finite‐state machine established switching. second lane‐changing trajectory optimized quantic polynomial curve...

This paper investigates the effects of tire characteristics on vehicular rollover and lateral stability. Two types with different adhesion coefficients were selected to evaluate relation between propensity Simulations used calculate critical factor analyze parameters handling, including center gravity, payload condition, vehicle speed, two proposed tires. To replicate an actual response, particularly during extreme driving operations, a two-degrees freedom (DOF) planar two-track model...

Hydraulic integrated interconnected regenerative suspension (HIIRS) is a novel system that can simultaneously harvest the vibration energy in and enhance vehicle dynamics. The parameter sensitivity of HIIRS analyzed significant parameters are optimized this paper. Specifically, half-vehicle model with established. Based on model, hydraulic three objectives, ride comfort, road holding, average harvesting power. considered study more abundant than those previous related studies, including...

Eddy current brake (ECB) is an attractive contactless whereas it suffers from braking torque attenuation when the rotating speed increases. To stabilize ECB’s generation property, this paper introduces concept of anti-magneto-motive force to develop ECB model on fundamental magnetic circles. In developed model, eddy demagnetization and influence temperature which make are clearly presented. Using ECB, external internal characteristics simulated through programming by MATLAB . find...

Cyclone separators are used extensively in diverse applications and research domains to collect particle-laden flows. Despite the technological advances this field, no bibliometric reports on topic have been documented. Understanding state of art field is crucial for future research. Using mapping techniques, study examined quality, quantity, development cyclone separators. Relevant data were extracted plain text formats through search queries refined by publication year (2000–2021) document...

The influence of variable operational conditions affects the performance particle collection and separation a regenerative air vacuum sweeper. Therefore, purpose this paper was to numerically investigate factors affecting suction efficiency pick-up head. Using computational fluid dynamics (CFD), model an integrated head developed based on process evaluate removal performance. realizable k-ε discrete models were utilized study gas flow field solid trajectories. structure, sweeping speed,...

The operational temperature of the magnetorheological (MR) fluid retarder is usually over 80 °C, and it reaches 150 °C when heat dissipation doesn't function well. high will seriously affect working efficiency MR by decreasing viscosity fluid, which affects generated braking torque. For analysis behavior retarder, an experimental study a thermal management system using thermoelectric cooling (TEC) module with sink as unit was conducted. variation tendencies for TEC were investigated during...

Abstract Vehicle overload seriously affects the traffic safety, damages road infrastructure, and service life is reduced. There are many shortcomings in current detection methods for overloaded vehicles. Traditional static weighing stations relatively fixed affect efficiency; cost of motion station high, while precision not enough; on-board electronic products require modification vehicles, which difficult to promote. In this paper, a non-contact method based on body vibration proposed....

The inertia, damp and friction force of machine reduces steering-wheel returnability, which drivers occasionally perceive as unpleasant. This phenomenon occurs in any EPS system regardless motor type or mounting location. In this paper the fuzzy logic control scheme based on angle absolute position for steer wheel return-to-center is proposed to improve return ability electric power steering system. different resistive imposed column through reducer. results experiment bench show that...

This article applies iterative learning control (ILC) to road simulation test system and simulates the reproduce a stochastic pavement profile. With uniform white noise as input, using actual measured input-output data dynamic neural network, nonlinear autoregressive moving average model (NARMA) was established. Regarding simulator mission perfect tracking problem in finite time interval, considering pure delay of model, P-type open loop law devised output error parameters were determined...