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721
Research of Digital Closed-loop Manufacturing Technology of Curvic Coupling
Published 2020-10-01“…By using the method of Tikhonov regularization and L Curve to solve linear system of equations, the adjustment parameters of machine tool and grinding wheel parameters could be obtained to correct the tooth profile error. …”
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722
Connection Between Track Geometry Quality and Dynamic Vehicle Response at Various Speeds
Published 2023-09-01“…Firstly, the influence of the longitudinal level irregularities on the vertical wheel-rail forces was examined. Secondly, the correlation between the lateral axle box acceleration and the cross level irregularities was investigated. …”
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723
High Speed Grinding of EN31 Steel with Alumina Nanofluid Coolant
Published 2022-01-01“…The MRR could be increased by either increase in wheel speed, depth of cut, and feed rate. An increase in MRR increases the surface temperature leading to thermal defects on surfaces. …”
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724
The risk control of rollover safety for new energy vehicles based on wire controlled chassis system
Published 2025-01-01“…IntroductionTechnological innovation is the key to ensuring the safety performance of new energy vehicles, which is crucial for ensuring the safety performance of new energy vehicles.MethodsIn order to ensure the safety and dynamism of new energy vehicles, a fuzzy dynamic Markov control strategy was adopted to design a vehicle’s anti-rollover wire controlled chassis system, analyze its fuzzy failure efficiency, and combine fault tree analysis to assess the safety integrity level of the vehicle.ResultsThe results showed that the proposed control strategy achieved a wheel turning angle error of within 0.002° for new energy vehicles, indicating good vehicle performance. …”
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725
Development and Performance Evaluation of Machine-Type Reciprocating Churner
Published 2024-12-01“…This device is composed of chassis, churner, churn carrier, connector or crank, rotating wheel, driving system or power transmission and balance weights. …”
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726
Intelligent Optimization Scheduling Strategy for Energy Consumption Reduction for Equipment in Open-Pit Mines Based on Enhanced Genetic Algorithm
Published 2024-12-01“…To solve this model, we have developed an improved genetic algorithm that integrates roulette wheel selection and elite preservation strategies. …”
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727
RESEARCH ON AXIAL MODIFICATION OF CROWD REDUCER GEARS OF LARGE MINING ELECTRIC EXCAVATOR
Published 2019-01-01“…Using the thin slice gear model,statistical average load of excavator mining process is taken as the reference load of modification,the minimum contact stress of gears at the excavator mining position withmaximum statisticalcrowd force is regarded as the objective,the slope modification of the two stage pinion(driving wheel) of the crowd reducer is carried out.Further, no edge load at tooth surface in each mining location is regarded as the objective,the crown modification of the two stage pinion of the crowd reducer is carried out.In the process of excavator mining,compare with pinion without modification,the maximum stress(including contact stress of tooth surface and bending stress of tooth root)of thepinionwith modification decreases significantly,and the edge contact condition of tooth surface is obviously improved.After modification,when the gear is subjected to the statistical maximum load of excavator mining process,the stress value of the gearis still less than the allowable stress.Simulation results show that,axial modification of crowd reducer gears of large mining electric excavator has positive significance for improving carrying ability and contact condition of gears.…”
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728
Static Analysis of Tubular Space Frame Chassis of an Electric Racing Car Made of ASTM A106 Grade B
Published 2023-05-01“…Then calculate the centre of gravity and the reaction force at the mounting supports on each wheel. The chassis design has a length of 2300mm, a width of 1100mm and a height of 1100 mm. …”
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729
The effect of steering axis inclination on the dynamic stability of vehicles with an articulated steering
Published 2025-01-01“…Additionally, in automobiles wheel caster angle is applied to facilitate maintaining the straight-line direction. …”
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730
A Probabilistic Assessment Model for Train-Bridge Systems: Special Attention on Track Irregularities
Published 2021-01-01“…In this paper, a probabilistic model devoted to investigating the dynamic behaviors of train-bridge systems subjected to random track irregularities is presented, in which a train-ballasted track-bridge coupled model with nonlinear wheel-rail contacts is introduced, and then a new approach for simulating a random field of track irregularities is developed; moreover, the probability density evolution method is used to describe the probability transmission from excitation inputs to response outputs; finally, extended analysis from three aspects, that is, stochastic analysis, reliability analysis, and correlation analysis, are conducted on the evaluation and application of the proposed model. …”
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731
Thermal EHL Characteristics Investigation on Axle Box Bearings of Railway Vehicle Based on Slicing Method
Published 2019-01-01“…Therefore, in this paper, we fully consider the time-varying nonlinear contact load of bearings and track irregularity in establishing the bearing-wheel-rail system coupling-dynamics model. The dynamic response of axle box bearings is obtained by taking the vertical, strong impact-time-varying load on the carrying saddles as the external excitation. …”
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732
Analysis of Coupling Effect and Heavy Load of High-Temperature Stability of Asphalt Mixture
Published 2022-01-01“…To study the variation in the high-temperature stability of asphalt mixtures under extreme high temperature and heavy load, rut tests and analyses were carried out with both the APA (asphalt pavement analyzer) test and CLWT (Chinese wheel load test). In this paper, the relationship model between the dynamic stability of asphalt mixtures and the temperature, load, and binder viscosity is established; this model provides a method for evaluating the temperature stability of asphalt mixtures under nonstandard temperature conditions. …”
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733
Simulation and Optimization of Acoustic Package of Dash Panel Based on SEA
Published 2020-01-01“…The instrument panel assembly is an important structure to shield powertrain noise and front wheel noise, and the instrument panel sound insulation system plays a key role in it. …”
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734
Bonding Durability Evaluation of Polymer-Modified Emulsified Asphalt Microsurfacing
Published 2024-01-01“…Based on the mixing time, wet track abrasion test, and load wheel test, the composition rationality of the microsurfacing mixture was verified. …”
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735
Intercropping and environmental seasonality modulate the physiology and growth of Hancornia speciosa (Gomes)
Published 2024-03-01“…Crops (experimental plots) were planted using a Nelder wheel design. Results Over the two years, H. speciosa was observed to experience seasonal regulatory changes, some of which were mitigated by the intercropping. …”
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736
Detection of Rail Defects Using Phased Array Ultrasonic Technique
Published 2025-01-01“…Only a darker shade of color in the area has an impact load from the wheel applied when a train changes to another direction. …”
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737
Trajectory Tracking Control for WMRs with the Time-Varying Longitudinal Slippage Based on a New Adaptive SMC Method
Published 2019-01-01“…Wheeled mobile robots (WMRs) in real complex environments such as on extraterrestrial planets are confronted with uncertain external disturbances and strong coupling of wheel-ground interactions while tracking commanded trajectories. …”
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738
Analysis of the Gyroscopic Stability of the Wheelset
Published 2014-01-01“…Nowadays, the rolling stock has entered the era of high speed, and the wheel rotates faster than in the past. The influence of gyroscopic effect on stability is little understood. …”
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739
Wire-arc directed energy deposition of martensitic stainless steel hardfacing alloy: Microstructure and abrasion wear resistance
Published 2025-01-01“…The investigation focuses on exploring the relationship between the microstructure of the hardfacing layer and its hardness, tensile properties, impact toughness, and wear behavior under dry sand rubber wheel testing conditions. Counterintuitively, it was found that applying a post-deposition tempering thermal treatment significantly enhances the abrasion resistance of the hardfacing layer, albeit at the cost of reducing its hardness. …”
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740
Interpreting Aerodynamics of a Transonic Impeller from Static Pressure Measurements
Published 2018-01-01“…The impeller is a high-speed, high-pressure-ratio wheel used in small gas turbine engines. The experiment was conducted on the single stage centrifugal compressor facility in the compressor research laboratory at Purdue University. …”
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