Experimental evaluation of braking pad materials used for high-speed elevator

Ma, Xiaotong; Pan, Gen; Zhang, Peng; Xu, Qian; Shi, Xi; Xiao, Zeliang; Han, Yunting

doi:10.1016/j.wear.2021.203872

Cited by 12 publications

(6 citation statements)

References 27 publications

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“…Testing elevator systems has been investigated with various techniques, e.g., metamorphic testing [6], machine learning [5,56], and model-based development [37]. However, most of them focus on testing functionalities, e.g., braking [20,33], and doors [43] of elevator systems. For instance, Peng et al [38] proposed a dynamic braking torque test method to test both the static and emergency braking torque.…”

Section: Testing Elevator Systemsmentioning

confidence: 99%

Uncertainty-Aware Robustness Assessment of Industrial Elevator Systems

Han

Ali

Yue

et al. 2023

ACM Trans. Softw. Eng. Methodol.

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Industrial elevator systems are commonly used software systems in our daily lives, which operate in uncertain environments such as unpredictable passenger traffic, uncertain passenger attributes and behaviors, and hardware delays. Understanding and assessing the robustness of such systems under various uncertainties enable system designers to reason about uncertainties, especially those leading to low system robustness, and consequently improve their designs and implementations in terms of handling uncertainties. To this end, we present a comprehensive empirical study conducted with industrial elevator systems provided by our industrial partner Orona, which focuses on assessing the robustness of a dispatcher, i.e., a software component responsible for elevators’ optimal scheduling. In total, we studied 90 industrial dispatchers in our empirical study. Based on the experience gained from the study, we derived an uncertainty-aware robustness assessment method (named UncerRobua ) comprising a set of guidelines on how to conduct the robustness assessment and a newly proposed ranking algorithm, for supporting the robustness assessment of industrial elevator systems against uncertainties.

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Section: Testing Elevator Systemsmentioning

confidence: 99%

Uncertainty-Aware Robustness Assessment of Industrial Elevator Systems

Han

Ali

Yue

et al. 2023

ACM Trans. Softw. Eng. Methodol.

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“…The noise performance of the composite material block is superior to the noise performance of the block without any filling material (i.e., the original block) and the block with powder metallurgy material but inferior to that of the block filled with the Mn-Cu damping alloy. Cu-based brake pad [606], full-carbon/ ceramic braking pairs [607], and the P/M pad mated with C/C-SiC disc [608] for high speed trains were tested separately, and compared under same test conditions [609]. The cupper-free brake materials used in automobiles were also extensively tested for replacing traditional cupper-containing brake materials [610][611][612][613].…”

Section: Brake and Friction Materialsmentioning

confidence: 99%

A review of advances in tribology in 2020–2021

Meng

et al. 2022

Friction

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Around 1,000 peer-reviewed papers were selected from 3,450 articles published during 2020–2021, and reviewed as the representative advances in tribology research worldwide. The survey highlights the development in lubrication, wear and surface engineering, biotribology, high temperature tribology, and computational tribology, providing a show window of the achievements of recent fundamental and application researches in the field of tribology.

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“…Yang et al 40 verified that the friction coefficient and temperature of the brake pads have a monotonically increasing relationship with the braking pressure in the range of the braking pressure of 1.0-10.0 MPa through the friction and wear test machine, this may be due to the increase of the test pressure, so that the oxide film on the brake pad surface has been in a state of destruction and regeneration, lead to an increase of the friction coefficient and wear rate of the brake pad. Ma et al 41 measured the friction performance of copper-based brake pads in the high braking pressure range (10.0-56.0 MPa). The verification has shown that the brake pad friction coefficient decreased with the increase of the braking pressure, this was because as the braking pressure increased, the lubricating components of the brake pad will form a smooth and complete friction film, thereby reducing the friction coefficient.…”

Section: Influence Of Brake Pressure On the Performance Of Brake Padsmentioning

confidence: 99%

Research progress on friction and wear properties of powder metallurgy brake pad

Chen

Zhang

et al. 2022

Advances in Mechanical Engineering

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The terrain of China is relatively complex, which leads to the complex and changeable working conditions of high-speed trains during braking. Studying the influence under different braking conditions on the performance of train brake pads is a problem worthy of in-depth discussion. In order to explore the performance changes of powder metallurgy brake pads during train braking, this paper summarizes the friction and wear properties and wear mechanism of powder metallurgy brake pads under different braking conditions; combined with the research status of powder metallurgy brake pad materials, it provides directions for the research of new powder metallurgy materials. Provide reference for the improvement of brake pads of high-speed train in the future.

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Experimental evaluation of braking pad materials used for high-speed elevator

Cited by 12 publications

References 27 publications

Uncertainty-Aware Robustness Assessment of Industrial Elevator Systems

Uncertainty-Aware Robustness Assessment of Industrial Elevator Systems

A review of advances in tribology in 2020–2021

Research progress on friction and wear properties of powder metallurgy brake pad

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