-
641
The Influence of the Track Parameters on Vibration Characteristics of Subway Tunnel
Published 2018-01-01“…A nonlinear coupling model of wheel-track and a finite element calculation model of tunnel and soil were established based on the mechanical character of elastic supporting block ballastless track and the actual parameters of Nanjing soft soil. …”
Get full text
Article -
642
Dynamics Modeling and Trajectory Tracking Control of the Mine Rescue Robot with a Variable Structure
Published 2024-10-01“…According to the structural characteristics of the robot, the steering mechanism of the robot was analyzed, and a dynamics model describing the steering characteristics of the robot considering the mechanical interaction between the front wheel/track and the soil was established. In order to improve the steering performance of the robot, the transient and steady-state responses of the system were analyzed, and the influence of different structural parameters on the steering performance was analyzed. …”
Get full text
Article -
643
THE ASSESSMENT OF SAFETY SYSTEMS IN WWER-1000 NUCLEAR REACTOR USING IAEA SIMULATOR
Published 2017-09-01“…Also, the ACP allowed the nuclear reactor to operate safely at 65%, 61 % and 39% power for the wheel jam of MCP-1, the trip of MCP-1 and the FWP-1 accident, respectively. …”
Get full text
Article -
644
Concept for evaluating the safety of a dynamically loaded gearbox reducer
Published 2025-01-01“…This article presents a concept for evaluating the safety of a dynamically loaded reducer, specifically built into a rotating excavator used in surface coal mines for its working wheel. The presented concept offers three ways to evaluate safety: according to factors of safety, according to operating parameters, and according to load capacity and loads. …”
Get full text
Article -
645
Study on the Modeling Method and Influencing Parameters of Sandblasting Process for Blade Grinding
Published 2022-01-01“…In order to solve the problem of high labor cost and low precision in manual grinding wheel grinding of wind turbine blades, the sandblasting process for blade grinding is proposed. …”
Get full text
Article -
646
STUDY ON THE COMPILATION OF TYPICAL EXCITATION SPECTRUM OF SUSPENSION DYNAMIC K&C TEST
Published 2022-01-01“…The traditional quasi-static K&C characteristic test can not reflect the hysteresis effect caused by shock absorber damping and bushing viscoelasticity comprehensively and effectively, but the suspension dynamic K&C characteristic test can make up the deficiency of the quasi-static characteristic test.Development of dynamic K&C test involves two aspects of excitation spectrum and performance evaluation of the research content, in this paper, A class A sedan for the study of the carrier, through A skid pad road load spectrum sampling test and simulation analysis, through the bench test iterations, designed the suspension K&C dynamic characteristic test of typical excitation spectrum, and its validity is verified by bench test and virtual test.The results show that the dynamic characteristics of the suspension can be reflected effectively by using the typical excitation spectrum designed in this paper, which provides some support for the research of wheel positioning parameters and the development of K&C test technology.…”
Get full text
Article -
647
L’utilisation du téléphone au volant chez les commerciaux hommes et femmes : habitudes de conduite et prises de risque
Published 2020-06-01“…Bluetooth is the only equipment currently tolerated by the law in France; there is however no information concerning phone use habits of sales and marketing people while at the wheel. The aim of this survey which was carried out with a French group of male and female sales and marketing people (N=59) was to identify their driving habits and the possible ensuing risks. …”
Get full text
Article -
648
OPTIMIZATION ANALYSIS OF LARGE DISPLACEMENT MOTORCYCLE SUSPENSION SYSTEM RIDING COMFORT BASED ON APPROXIMATE MODEL
Published 2022-01-01“…The results show that after optimization, the actual vehicle verified that the pitch vibration acceleration peak was reduced by 17.21%, and the front and rear wheel vertical vibration acceleration peaks were reduced by 8.11% and 24.18%, respectively, which improved the ride comfort of the motorcycle and verified the effectiveness of the optimization scheme.…”
Get full text
Article -
649
Design and implementation algorithm of safe driver assistant system based on EOG
Published 2016-07-01“…In order to ensure driving safety, improve the intelligent level of the vehicle control system and realize“keeping hands on the wheel”, a safe driver assistant system (SDAS) based on EOG was proposed. …”
Get full text
Article -
650
Heterogeneous Signal Fusion Method in Driving Fatigue Detection Signals
Published 2021-01-01“…This work will take the normal driver’s breathing signal, eye signals, and steering wheel signal as research objects and collect and isolate the characteristics of the fatigue detection signal. …”
Get full text
Article -
651
Investigating Effects of Nano/SBR Polymer on Rutting Performance of Binder and Asphalt Mixture
Published 2018-01-01“…To this end, the storage stability, rotational viscosity, DSR, and RCR tests on binder and marshal stability were performed, and dynamic creep and wheel track tests on asphalt mix were performed to assess rutting performance. …”
Get full text
Article -
652
PID Controller of Sprayer Chassis by Sliding Mode
Published 2017-01-01“…In order to solve the straight line drive coordinated control problem of the four-wheel independent drive sprayer chassis, the dynamic model of sprayer chassis and electromagnetic proportional valve controlled hydraulic motor model are established. …”
Get full text
Article -
653
Analysis and Research of the Generating Plane Inclination Angle of the Plane Enveloping Internal Meshing Worm Drive
Published 2017-01-01“…Based on the principle of gear meshing,the worm tooth surface contact and the induced curvature equation are constructed,by using the numerical calculation method and the Hertz contact stress calculation model,the influence of worm wheel tooth number and center distance change on the plane enveloping internal meshing worm drive under the condition of the single head plane enveloping internal meshing worm drive is analyzed. …”
Get full text
Article -
654
Design of A Novel Robot with Omni-directional Mobile and Obstacle-crossing Function
Published 2016-01-01“…It can move in omni-direction on flat floor with three degrees of freedom in plane,and is also able to passively overcome obstacles of up to 4 times of its wheel radius within the 45 degree slope range. By using rectangle configuration,the four Mecanum motorized wheels is arranged on a climbing structure on each side which is consisted by double cranks and spring coupling. …”
Get full text
Article -
655
Cause and Elimination Mechanism of Circularly Shift Range for the Multi-range Hydro-mechanical CVT
Published 2017-01-01“…To avoid the circularly shift range on multi-range hydro-mechanical continuously variable transmission(HMCVT),taking the multi-range hydro-mechanical CVT of the wheel tractor of YTO-400 as example,the transmission characteristic of multi-range hydro-mechanical CVT is analyzed.The causes of the circularly shift range are researched,and eliminating mechanism is presented.The effectiveness of principle of averting the circularly shift range is simulated by using the theory of Finite State Machine,which employs the actual and theoretical displacement ratio,output speeds of multi-range hydro-mechanical CVT as the control parameter.The research results indicate that,the volumetric efficiency of the pump-motor system is the important reason for the factor of efficiency difference of the circularly shift range.By controlling the increase of the theory displacement ratio of the multi-range hydro-mechanical CVT,the actual displacement ratio is maintained at the same time,which effectively avoids the cycle change of the multi-range hydro-mechanical CVT.A theoretical foundation for the development of multi-range hydro-mechanical CVT control system is provided.…”
Get full text
Article -
656
Multi-objective Optimization and Strength Simulation Analysis of Planetary Reducer with Small Tooth Number Difference
Published 2016-01-01“…Therefore,based on the elastic multi- tooth contact effect,taking the basic parameters of gear as design variables,and a multi- objective optimization model of small tooth difference planetary drive is established,while targeting on maximum efficiency as well as smallest volume and the internal and external gear equal strength of the core unit of the planet wheel. The optimization results show that the internal and external gear strength is close enough,and the meshing efficiency raised to 99. 65%,construction volume decreased by29. 3%. …”
Get full text
Article -
657
Drivability Improvement Control for Vehicle Start-Up Applied to an Automated Manual Transmission
Published 2017-01-01“…Based on a piecewise model of powertrain, a multiple-model predictive controller (mMPC) is designed with the engine speed, clutch disc speed, and wheel speed as the measurable input variables and the engine torque reference and clutch friction torque reference as the controller’s output variables. …”
Get full text
Article -
658
Synaptic Remodeling in the Dentate Gyrus, CA3, CA1, Subiculum, and Entorhinal Cortex of Mice: Effects of Deprived Rearing and Voluntary Running
Published 2010-01-01“…No direct effects of deprived rearing on rates of synaptic turnover were found in any of the studied regions. However, adult wheel running had the effect of leveling layer-specific differences in synaptic remodeling in the dentate gyrus, CA3, and CA1, but not in the entorhinal cortex and subiculum of animals of both rearing treatments. …”
Get full text
Article -
659
Motorcycle Parking Security System based on Website and QR Code Technology
Published 2023-09-01“…Users scan the provided QR code to access the website, where they will be prompted to enter a password that functions as a controller for the locking and unlocking process of the motorcycle's front wheel using a servo motor. Furthermore, to detect forced removal attempts, the system is equipped with an alarm that notifies the parking attendant. …”
Get full text
Article -
660
Analysis of Natural Characteristic and Loci Veering / Crossing of Double Helical Planetary Gear Train
Published 2015-01-01“…,the central components axial torsional vibration mode,the central components translational mode and the planet wheel vibration mode. Based on the loci veering / crossing principle,the influences of loci veering and loci crossing on the transmission characteristic are analyzed from the perspective of modal strain energy and vibration modes.The simulation results demonstrate that vibration modes and modal energy exchange abruptly when a loci crossing occurs,while vibration modes and modal energy change step- by- step but do not exchange when a loci veering occurs. …”
Get full text
Article