Failure analysis and optimization of a suspended structure in the power supply system of the subway

被引：6

作者：

Liu, Long ^{[1
]}

Ding, Ning ^{[1
]}

Xu, Na ^{[1
]}

Guo, Weimin ^{[1
]}

Shi, Junbo ^{[1
]}

Li, Nan ^{[1
]}

Zhang, Lijun ^{[2
]}

Meng, Bingchen ^{[2
]}

Zairi, Fahmi ^{[3
]}

机构：

[1] Qilu Univ Technol, Shandong Acad Sci, Shandong Anal & Test Ctr, Engn Res Ctr Failure Anal & Safety Assessment, Jinan 250014, Peoples R China

[2] Shandong Jiaotong Univ, Traff Judicial Identificat Ctr, Jinan 250100, Peoples R China

[3] Lille Univ, Civil Engn & Geoenvironm Lab, ULR 4515 LGCgE, F-59000 Lille, France

来源：

ENGINEERING FAILURE ANALYSIS | 2020年 / 115卷

基金：

中国国家自然科学基金;

关键词：

Dropper; Fatigue; Fracture; Stainless steel wire; Finite element analysis; FATIGUE FAILURE; WIRE ROPE; STEEL;

D O I：

10.1016/j.engfailanal.2020.104619

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The failure mechanism of the fractured droppers used in power supply systems for subway was analyzed with various technologies. Collected evidences indicated that the droppers fracture due to fatigue crack propagation. The chemical composition and mechanical properties of the dropper material were both complied with the normal 304 stainless steel standard. The metallographic examination showed that the microstructure of the failed dropper was normal. The initial region of the fatigue damage was located at a notch near the bending place. Under the cyclic loads caused by the up and downs of the dropper when the train passes by, the crack initiated, propagated and ruptured finally. Results of finite element simulations suggested that the residual force of the droppers will increase as the chamfering radius is. Improving the manufacturing tool was an effective way to reduce the stress concentration and to increase the residual force of the droppers, thus, to improve the service life of the droppers.

引用

页数：7

共 50 条

[21] Thermal Structure Optimization of a Compact Power Supply Module
Yang, Dongmei
PROCEEDINGS OF THE SEVENTH ASIA INTERNATIONAL SYMPOSIUM ON MECHATRONICS, VOL II, 2020, 589 : 527 - 534
[22] Uninterruptible Photovoltaic Power Supply: A case of system failure
Khouzam, Kame Y.
2009 IEEE POWER & ENERGY SOCIETY GENERAL MEETING, VOLS 1-8, 2009, : 623 - 630
[23] Hardware-In-the-Loop Simulation of Traction Power Supply for Power Flows Analysis of Multitrain Subway Lines
Mayet, Clement
Delarue, Philippe
Bouscayrol, Alain
Chattot, Eric
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 2017, 66 (07) : 5564 - 5571
[24] A choice of the structure of the photovoltaic system for power supply
Lobov B.N.
Kolpakhch’yan P.G.
Belokopytov S.A.
Ali Madzhid A.D.R.
Russian Electrical Engineering, 2015, 86 (07) : 398 - 402
[25] Backup Power Supply System Analysis
Lakota, Bohuslav
Exnar, Zdislav
Matejcek, Miroslav
Sostronek, Mikulas
ADVANCES IN ELECTRICAL AND ELECTRONIC ENGINEERING, 2015, 13 (02) : 115 - 119
[26] Optimization model of power supply system of industrial enterprise
Panteleev, V.
Zilberman, S.
Pilyugin, G.
Petukhov, R.
Sizganova, E.
Mashukov, M.
IX INTERNATIONAL MULTIDISCIPLINARY SCIENTIFIC AND RESEARCH CONFERENCE MODERN ISSUES IN SCIENCE AND TECHNOLOGY / WORKSHOP ADVANCED TECHNOLOGIES IN AEROSPACE, MECHANICAL AND AUTOMATION ENGINEERING, 2018, 450
[27] Optimization of The Control Circuit of A Wireless Power Supply System
Gliga, Marian
Munteanu, Calin
Andreica, Sergiu
Pacurar, Claudia
Giurgiuman, Adina
Constantinescu, Claudia
PROCEEDINGS OF 9TH INTERNATIONAL CONFERENCE ON MODERN POWER SYSTEMS (MPS 2021), 2021,
[28] Costs optimization of the electric power supply by using the it system
Sroczan, Eugeniusz M.
RYNEK ENERGII, 2008, (01): : 18 - 22
[29] Energy Efficiency Analysis of Power System Based on Optimization of Peak Supply and Demand Regulation
Wang Shunjiang
Yang Jinlu
Gao Kai
Li Jiajue
2018 INTERNATIONAL CONFERENCE ON SMART GRID AND ELECTRICAL AUTOMATION (ICSGEA), 2018, : 104 - 107
[30] Optimization of Multitrain Operations in a Subway System
Su, Shuai
Tang, Tao
Li, Xiang
Gao, Ziyou
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS, 2014, 15 (02) : 673 - 684

← 1 2 3 4 5 →