Article
Engineering, Mechanical
Sheng Qu, Jianbin Wang, Dafu Zhang, Dadi Li, Lai Wei
Summary: By conducting field tests, investigations, and simulations, this study identifies that bogie hunting instability can lead to frame cracking and recommends regular wheel maintenance and rubber sleeve replacement to prevent this issue.
ENGINEERING FAILURE ANALYSIS
(2021)
Article
Engineering, Mechanical
Xinyuan Zhao, Shuqiang Xie, Yulong Zhang, Qiang Li, Wenjing Wang, Binjie Wang
Summary: This paper conducted fatigue property tests on typical welded joints of a metro bogie frame and determined the effective notch stress S-N curve combined with the effective notch stress concentration factor. The effects of joint dimensions were studied to obtain a safer S-N curve for fatigue reliability analysis. The study provides a theoretical and practical basis for assessing the fatigue of the metro bogie frame under service conditions.
ENGINEERING FAILURE ANALYSIS
(2022)
Article
Engineering, Mechanical
Zifan Zhang, Changle Ru, Qiang Li
Summary: This paper studies the method of accurately predicting the fatigue life of the bogie frame of a metro train. A hybrid frequency-time calibration method is proposed to correct the error between the calculated damage and real damage value. The results show that the calibrated load can be used for the reliability design of later structural optimization.
ENGINEERING FAILURE ANALYSIS
(2022)
Article
Engineering, Mechanical
B. J. Wang, S. Q. Xie, Q. Li, Z. S. Ren
Summary: The study emphasizes the importance of predicting fatigue damage on bogie frames under service environment. By verifying the completeness of measured loads and classifying them into quasi-static and dynamic regions, the study achieves more accurate predictions and covers the measured damage.
INTERNATIONAL JOURNAL OF FATIGUE
(2022)
Article
Transportation Science & Technology
Seyed Ahmad Sanikhani, Mehdi Soroush, Kourosh Alizadeh Kiani, Mohammad Ravandi, Mohsen Rezaeian Akbarzadeh
Summary: This study aims to evaluate the fatigue failure probability of a bogie frame considering the variability of input parameters through a data-driven surrogate model. Mechanical tests and machine learning methods were used to generate a dataset and construct surrogate models. The CatBoost model was found to be the optimal algorithm for reliability evaluation. Results show a high fatigue reliability for the bogie frame under normal conditions, with a cumulative failure probability of less than 0.66% over a 30-year service life. The proposed machine learning-based approach is an efficient tool for evaluating fatigue failure probability with a small set of training data available.
INTERNATIONAL JOURNAL OF RAIL TRANSPORTATION
(2023)
Article
Engineering, Electrical & Electronic
Wei Zhou, Gangli Zhang, Hui Wang, Chang Peng, Xiang Liu, Heting Xiao, Xifeng Liang
Summary: This study proposes a fatigue assessment method for metro vehicle bogie frames, using a theoretical model that relates measured strain to structural stress. The model is validated through experiments and evaluated with damage accumulation rules. The results suggest that this method offers an alternative for maintenance strategies on metro vehicles and other rail-transit vehicles.
Article
Engineering, Civil
Takeo Shirotori
Summary: This study proposes a non-dismantling functional inspection method for bogie components to improve safety and simplify maintenance. The method measures bogie vibration generated when vehicles pass over iron plates and conducts functional inspection based on changes in natural frequency. Experimental results support the effectiveness of the method, with a dynamic numerical model confirming measurement accuracy and presenting potential for efficient maintenance.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART F-JOURNAL OF RAIL AND RAPID TRANSIT
(2021)
Article
Transportation Science & Technology
Guosong Wu, Longjiang Shen, Yuan Yao
Summary: This study investigates the readhesion performance and driving system dynamics of locomotives with bogie frame suspension driving system. A train dynamic model is established to analyze the vibration characteristics in adhesion saturation state and the influencing factors on readhesion performance. The simulation results show that increasing the torsional stiffness of six-bar double hollow shaft coupling and using a traction motor with hard mechanical characteristics can improve the locomotive's readhesion performance. Additionally, increasing the motor suspension stiffness within a certain range is advantageous. Resonance analysis indicates the occurrence of resonance in the driving system when the natural frequency of wheelset's longitudinal vibration is close to the rotary vibration natural frequency or its frequency doubling. Reasonable matching of primary longitudinal stiffness and six-bar double hollow shaft coupling stiffness is emphasized.
INTERNATIONAL JOURNAL OF RAIL TRANSPORTATION
(2023)
Article
Engineering, Mechanical
Vesa Nieminen, Antero Tuohineva, Maija Autio
Summary: This paper presents a method for reconstructing operational wheel loads based on strain gauge measurements on a tram bogie, with physical calibrations verifying the load-strain relationship. A novel calibration arrangement is proposed to generate linearly independent load cases for a fully equipped bogie. The good correlation between the reconstructed operational stresses and the measured stresses indicates the validity of the identified loads for fatigue assessment.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Engineering, Mechanical
Chaotao Liu, Ye Song, Fansong Li, Pingbo Wu, Yunguang Ye
Summary: Metro bogie frames occasionally experience fatigue failure during operation. Through fatigue fractography, it is determined that the fusion defect of the weld root at the frame's hot spot is the internal cause of fatigue failure. Based on field testing, it is found that the modal frequency of the frame coincides with the wheel-rail coupling vibration frequency under specific track structures, which is the external cause of the frame's fatigue failure. The wheel out-of-roundness (OOR) and the curved track with a radius below 600 m also significantly impact the fatigue life. The evaluation of the residual life provides a reference for optimizing the maintenance strategy of the bogie frame.
ENGINEERING FAILURE ANALYSIS
(2023)
Article
Engineering, Multidisciplinary
Yi Sun, Lai Wei, Sheng Qu, Huanyun Dai
Summary: This paper discusses the fatigue state estimation of the metro bogie frame based on limited sensors using frequency domain methods. The cases of middle-frequency and high-frequency vibration fatigue damage of a metro bogie frame are studied, with main excitations coming from wheel/rail interactions. The study focuses on the most common modal vibration of the bogie frame and explores the possibilities of fatigue failure monitoring on specific transfer paths. Various coherence analysis methods are used to eliminate unnecessary input signals, and power spectral densities and cross power spectral densities are calculated to obtain transfer functions for stress estimation. The results show good consistency with experimental data.
STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL
(2023)
Article
Engineering, Mechanical
C. Qu, Y. Li, J. Z. Jiang, G. J. Tucker, S. A. Neild, M. C. Smith, A. Gleeson, S. Odetunde, Y. Muhamedsalih
Summary: This study investigates the potential of hydraulic-damping-integrated primary suspension in reducing primary yaw stiffness while maintaining ride comfort, as well as the trade-off between primary yaw stiffness reduction and suspension stroke requirement. The results show that the optimal hydraulic-damping-integrated suspension can significantly reduce primary yaw stiffness without affecting ride comfort, leading to potential cost savings in wheel-rail maintenance.
VEHICLE SYSTEM DYNAMICS
(2023)
Article
Engineering, Electrical & Electronic
Seokheum Baek, Xueguan Song, Myungil Kim, Jaesung Kim
Summary: This study focuses on the multiobjective optimization of a brake end beam of a bogie frame considering stress, fatigue, and weight. A finite element analysis is used to obtain stress distribution and fatigue life assessment. The results suggest that the proposed approach is effective and has potential for optimal design of components in the bogie frame.
JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY
(2021)
Article
Engineering, Mechanical
Ravi Kumar, Tarun Sharma, Anand Shekhar, Nalinaksh S. Vyas
Summary: This article investigates the failures in the primary suspension system of LHB coaches and proposes design modifications to enhance fatigue life. Through the development of a flexible finite element model and simulation of different loading conditions, it is found that fatigue in primary helical springs and failure of hydraulic dampers are major factors contributing to the failures. The suggested modifications in the design of the primary suspension springs improve fatigue life without requiring significant changes to associated components or manufacturing setup.
ENGINEERING FAILURE ANALYSIS
(2022)
Article
Engineering, Multidisciplinary
Chengxiang Ji, Shouguang Sun, Qiang Li, Wenjing Wang, Zunsong Ren, Guangxue Yang
Summary: This paper presents a novel method for applying measured load spectra to different high-speed train bogie frames. The method utilizes virtual track irregularity and a simplified vehicle dynamics model to predict the actual load histories on the bogie frames based on the inverted measured load history.
Article
Engineering, Civil
J. Tanaskovic, D. Milkovic, V. Lucanin, G. Vasic Franklin
THIN-WALLED STRUCTURES
(2015)
Article
Thermodynamics
Suzana Lj. Linic, Goran J. Ocokoljic, Slavica S. Ristic, Vojkan J. Lucanin, Mirko S. Kozic, Basko P. Rasuo, Bore V. Jegdic
Article
Engineering, Mechanical
J. Tanaskovic, V. Lucanin, D. Milkovic, G. Simic, M. Milos
EXPERIMENTAL TECHNIQUES
(2014)
Article
Engineering, Mechanical
Vojkan J. Lucanin, Mirjana A. Puharic, Dragan D. Milkovic, Snezana D. Golubovic, Suzana Lj Linic
INTERNATIONAL JOURNAL OF HEAVY VEHICLE SYSTEMS
(2012)
Article
Engineering, Multidisciplinary
D. Milkovic, G. Simic, Z. . Jakovljevic, J. Tanaskovic, V. Lucanin
Article
Engineering, Civil
Nebojsa Bogojevic, Vojkan Lucanin
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART F-JOURNAL OF RAIL AND RAPID TRANSIT
(2016)
Article
Transportation Science & Technology
Sandra Kasalica, Radisav Vukadinovic, Vojkan Lucanin
PROMET-TRAFFIC & TRANSPORTATION
(2012)
Article
Engineering, Mechanical
Suzana Linic, Vojkan Lucanin, Srdjan Zivkovic, Marko Rakovic, Slavica Ristic, Bojana Radojkovic, Suzana Polic
Summary: A multidisciplinary research method was used to create a series of bio-inspired flattened airfoils based on kingfisher biomimicry, and aerodynamic characteristics were obtained using panel methods at low and moderate subsonic speeds. The study suggests further development of numerical methods and codes for pre-computational fluid dynamics run.
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
(2021)
Article
Engineering, Mechanical
Aleksandar R. Radosavljevic, Vojkan J. Lucanin, Bernhard Ruger, Snezana D. Golubovic
Article
Engineering, Mechanical
Mirjana Puharic, Suzana Linic, Dusan Matic, Vojkan Lucanin
TRANSACTIONS OF FAMENA
(2011)
Article
Engineering, Mechanical
Dragan D. Milkovic, Goran Z. Simic, Jovan D. Tanaskovic, Vojkan J. Lucanin, Sasa Z. Radulovic
Article
Engineering, Mechanical
Dragan Milkovic, Goran Simic, Jovan Tanaskovic, Zivana Jakovljevic, Vojkan Lucanin
FACTA UNIVERSITATIS-SERIES MECHANICAL ENGINEERING
(2015)
Article
Engineering, Mechanical
Mirjana Puharic, Dusan Matic, Suzana Linic, Slavica Ristic, Vojkan Lucanin
Article
Engineering, Mechanical
Jovan D. Tanaskovic, Dragan D. Milkovic, Vojkan J. Lucanin, Goran Z. Simic
Article
Engineering, Mechanical
Willy Ank de Morais, Railson Bolsoni Falcao, Mario Boccalini Jr, Fernando Jose Gomes Landgraf
Summary: This study compares the fatigue behavior of bcc Nb-48 wt%Ti (Ti-36at%Nb) alloy parts processed by Laser Powder Bed Fusion (L-PBF) using two different types of powders (spherical powder produced by Plasma Atomization and irregularly shaped powder produced by Hydride-Dehydride). The results show that the fatigue behavior is similar for both powders, but the specimens produced from the Hydride-Dehydride powder have higher dispersed results. Fracture primarily occurs in the porosities near the machined sample surface, and the fatigue cracks propagate in a zigzag mode parallel to the L-PBF building direction.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
Guoxi Jing, Shuai Sun, Teng Ma, Shubo Li, Tian Ma, Junchao Wei, Jianchao Pang
Summary: This study proposes a parameter identification method for predicting the TMF life of CGI materials used in cylinder heads. The study evaluates the TMF behavior of RuT450 material and successfully predicts its TMF life using multi-objective optimization. The results highlight the influence of plastic strain amplitude, temperature, and strain rate on the damage mechanism and life prediction.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
Xin Zhang, Xu Li, Weipeng Xu, Kuidong Gao, Kao Jiang, Xinyu Wang, Hongxin Wei
Summary: Conical picks are commonly used in tunnel excavation and often experience high temperatures during the cutting process. This study investigated the influence of temperature on the wear of conical picks and proposed a method for measuring rock abrasiveness that takes into account the thermal effect. The experimental results showed that cooling liquid reduced the maximum temperature and the mean mass loss of the conical pick. Additionally, the study examined the characteristics of oxygen and found evidence of peeling, cracking, and oxidation on the grinding rod used for rock abrasiveness measurement.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
Vivek Srivastava, Deependra Singh, A. G. Rao, V. P. Deshmukh
Summary: Engine gear failures are a significant concern in various industries. Investigating each gear failure and determining the root cause is important for preventing future failures. This study used experimental and numerical analysis techniques to investigate the premature failure of a flywheel gear in a marine diesel engine. The findings revealed that the gear failed due to overload stresses caused by overload torque generated from sudden inertial thrust in the internal combustionengine.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
Jun Zhang, Weidong Liu, Feilong Liu, Zhiqiang Yang, Jinfang Peng, Minhao Zhu
Summary: During a major overhaul of an aeroengine, a cracked stator vane of the low-pressure compressor was discovered, with the crack originating from a corrosion pit located on the arc transition between the leading edge and the upper edge plate. The fracture surface exhibited signs of fatigue cracks, indicating a pit-related fatigue crack. Metallographic examination revealed that most corrosion pits were distributed beneath the bulging or peeling paint layer on the leading edge and the concave side. Identification of the corrosion products showed the presence of sulfate and alumina, suggesting atmospheric corrosion as a likely cause for the cracked stator vane.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
Juan Jose Jimenez de Cisneros Fonfria, Ester Olmeda, Susana Sanz, Maria Garrosa, Vicente Diaz
Summary: Energy absorbing devices in vehicles can partially transform impact energy and protect passengers. In this paper, the failure analysis of the underframe crumple zone in a train car was conducted through finite element simulations, showing that the component acted properly after the impact.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
Fengqi Zhang, Gang Luo, Haiyang Zhang, Peihong Cong, Lulu Liu, Wei Chen
Summary: In this study, a predictive model for bird strike trajectory was developed based on the quasi-linear viscoelastic model. By combining simulation analysis under multiple conditions, the model reproduced the trajectory change law in low and medium speed bird impact experiments.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
S. M. de Gouveia, L. de Abreu Correa, D. B. Teles, M. Oliveira, T. G. R. Clarke
Summary: Emergency Shutdown Valves (EDSVs) are used in industrial applications to interrupt fluid flow during hazardous events. The damage to the valve seats can be detected by analyzing the pressure and torque data. This study compared three processing options and found that evaluating the complete signature with a Gradient Boosting Classifier algorithm is the most effective strategy.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
Xinyan Jin, Kai Wang, Hongwei Qian
Summary: This study investigated the root cause of an abnormal premature groove-clogging failure on a sink roll in a hot-dip galvanizing line. It was found that the failure was caused by the buildup of a large amount of Fe2Al5Znx dross in the grooves, and the key factor was the control of Tstrip.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
Zhiqiang Li, Jie Li, Cen Li, Xiaodong Xie, Zhiyong Yang
Summary: In this study, the microstructure evolution of the material in the hot spot area of the high-speed train brake disc was observed and the mechanism of mechanical property degradation was obtained through tensile tests. The research results provide guidance for crack damage identification of the brake disc and condition-based maintenance.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
Lijia Luo, Yincheng Wang, Wei Chen, Zuming Zhao, Wenfei Chen, Shiyi Bao
Summary: Tube-to-tube impact wear is a significant factor in the failure of alloy 690 tubes in nuclear steam generators. This paper investigates the wear damage mechanism and detection method of alloy 690 tubes under tube-to-tube impact loads. The results reveal the wear damage mechanism through analysis of macro and micro morphologies as well as metallographic structures. A nonlinear ultrasonic wave mixing method is proposed for damage detection and a detection device is developed to implement this method. Experimental results indicate that the damage mode of tube-to-tube impact wear varies with impact load and cycle number, and the nonlinear modulation index is effective in assessing the damage degree of alloy 690 tubes.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
Xing-Ju Yang, Feng Lin, Xu Du, Lu Qiu
Summary: This paper proposes a novel method of improving the progressive collapse resistance of RC frame structures by adding locally debonded kinked steel plates (KPs). Experimental tests and finite element analysis reveal that the addition of KPs significantly enhances the ultimate resistance and deformability of the beam-slab substructures. The mechanism of resistance improvement is explained, and an analytical model is developed for predicting the ultimate resistance of the structures.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
Xiaohe Wang, Zengqiang Cao
Summary: This paper presents a dynamic installation (DI) method based on electromagnetic force to reduce damage to composite laminates and improve joint performance. The study shows that DI can effectively decrease installation resistance, reduce severe damage to laminates, and improve stress distribution in the joint.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
Jitong Cui, Yingying Kong, Cuiwei Liu, Baoping Cai, Faisal Khan, Yuxing Li
Summary: This paper presents a method for quantifying the failure probability of hydrogen doped pipelines and utilizes Bayesian network for quantitative calculation. The results show that this method can more accurately assess the failure probability of hydrogen doped pipelines and provide a decision basis for preventing failure accidents.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
Yiping Jiang, Maoru Chi, Jungang Yang, Liangcheng Dai, Yuchen Xie, Zhaotuan Guo
Summary: This article investigates and simulates the derailment of empty freight trains at the switch section of a turnout in the diverging route, and proposes preventive measures. The results show that the derailment is caused by the combined effect of various factors, and reducing the longitudinal coupler force and the wheel rail friction coefficient can decrease the possibility of derailment. Additionally, installing a guard rail in front of the turnout can effectively prevent derailment.
ENGINEERING FAILURE ANALYSIS
(2024)
