Friction predication on pin-to-plate interface of PTFE material and steel

Bi, Zhuming; Mueller, Donald W.

doi:10.1007/s40544-018-0224-8

Cited by 18 publications

(7 citation statements)

References 21 publications

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“…The adhesion coefficient of the right drums were set as the peak adhesion coefficient after applying polytetrafluoroethylene (PTFE) tape. PTFE is an ideal material for low adhesion simulation because of its low friction coefficient and wear resistance, and high temperature resistance [36]. The running simulation model was completed after inputting the adhesion coefficient parameters.…”

Section: Simulation Verificationmentioning

confidence: 99%

Double-Drum Test Bench for Variable Load Transfer Simulation by Electromechanical Inertia Compensation

Xing

Guoye

Gong

et al. 2019

Sensors

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To improve the accuracy and actual road equivalence of vehicle performance testing using test benches, a double-drum test bench that meets the test requirements of vehicle control system prototypes and in-use vehicles was designed. Dynamic models of the single-wheel test bench and the vehicle test bench were established, and mechanisms were theoretically analyzed for single-wheel variable adhesion and vehicle load transfer for equivalent testing using the variable placement angle. The mechanism of electromechanical inertia compensation was studied to realize stepless simulation of vehicle inertia and simulate dynamic load while braking. The simulation model of the vehicle test bench system was established based on MATLAB/Simulink. Simulations were carried out to verify the anti-lock braking system (ABS) performance test functionality of the test bench under high adhesion, bisectional, and low adhesion conditions. Referring to the simulation conditions, ABS tests under actual test bench and road conditions were carried out. Results demonstrated that the mechanism of variable load transfer simulation by electromechanical inertia compensation improves the equivalent accuracy compared to that of its road test equivalent, verifying the feasibility of the simulation mechanism. This study could help further improve the accuracy and reduce the cost of vehicle performance testing, thus greatly benefitting the vehicle development and testing industry.

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Section: Simulation Verificationmentioning

confidence: 99%

Double-Drum Test Bench for Variable Load Transfer Simulation by Electromechanical Inertia Compensation

Xing

Guoye

Gong

et al. 2019

Sensors

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show abstract

“…It causes the huge waste of resources, economic losses, and even production accidents in the heavy equipment industry. The use of solid lubricating coatings/film surface technologies is one of the main ways to solve the above problems in heavy load wear and elevated temperature ablation [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Mechanism of thermoviscoelasticity driven solid-liquid interface reducing friction for polymer alloy coating

et al. 2023

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High-temperature ablation is a common failure phenomenon that limits the service life of the transmission parts on heavy-duty machines used in heavy load, high temperature, high shock conditions due to in-sufficient supply of lubricating oil and grease. Traditional self-lubricating coatings prepared by inorganic, organic or organic-inorganic hybrid methods are prone to be oxidated at high temperatures to lose their friction reducing function, so that it is difficult to meet the engineering requirements of high-temperature lubrication. We design viscoelastic polymer coatings by a high-temperature self-lubricating and wear-resistant strategy. Polytetrafluoroethylene (PTFE, Tm = 329 °C) and polyphenylene sulfide (PPS, Tg = 84 °C, Tm = 283 °C) are used to prepare a PTFE/PPS polymer alloy coating. As the temperature increases from 25 to 300 °C, the PTFE/PPS coating softens from glass state to viscoelastic state and viscous flow state, which is owing to the thermodynamic transformation characteristic of the PPS component. Additionally the friction coefficient (µ) decreased from 0.096 to 0.042 with the increasing of temperature from 25 to 300 °C. The mechanism of mechanical deformation and surface morphology evolution for the PTFE/PPS coating under the multi-field coupling action of temperature (T), temperature–centrifugal force (T–Fω), temperature–centrifugal force–shearing force (T–Fω–Fτ) were investigated. The physical model of “thermoviscoelasticity driven solid–liquid interface reducing friction” is proposed to clarify the self-lubricating mechanism determined by the high-temperature viscoelastic properties of polymers. The high-temperature adjusts the viscosity (η) of the coating, increases interface slipping and intensifies shear deformation (τ), reducing the friction coefficient. The result is expected to provide a new idea for designing anti-ablation coatings served in high temperature friction and wear conditions.

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“…In this vein, microporous polytetrafluoroethylene (PTFE) is proposed as a suitable support layer owing to its excellent chemical and thermal stability, hydrophobicity and high porosity. More importantly, its ultralow coefficient of friction is ideal for fast transport of permeates during separation process [45].…”

Section: Introductionmentioning

confidence: 99%

Ultrathin poly (vinyl alcohol)/MXene nanofilm composite membrane with facile intrusion-free construction for pervaporative separations

Yang

Xie

Thornton

et al. 2020

Journal of Membrane Science

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Friction predication on pin-to-plate interface of PTFE material and steel

Cited by 18 publications

References 21 publications

Double-Drum Test Bench for Variable Load Transfer Simulation by Electromechanical Inertia Compensation

Double-Drum Test Bench for Variable Load Transfer Simulation by Electromechanical Inertia Compensation

Mechanism of thermoviscoelasticity driven solid-liquid interface reducing friction for polymer alloy coating

Ultrathin poly (vinyl alcohol)/MXene nanofilm composite membrane with facile intrusion-free construction for pervaporative separations

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