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Journal articles on the topic 'Rail joint assembly'

Author: Grafiati

Published: 19 February 2023

Last updated: 31 July 2025

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1

Fan, Yang, Hu Changming, Feng Zhanying, Liu Min, and Wang Xumin. "Research on Connector Assembly System and Control Strategy for Large-scale Panel." Journal of Physics: Conference Series 2281, no. 1 (2022): 012010. http://dx.doi.org/10.1088/1742-6596/2281/1/012010.

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Abstract There are technical requirements for the assembly of thousands of separate flange joints on the radar panel. The use of traditional manual assembly has problems such as high labor intensity, low assembly efficiency, and difficulty in uniform assembly quality. Therefore, in response to the above problems, combined with the requirements of high precision of joint assembly position and attitude, and intelligent management and control of the operation process, a set of joint component assembly system based on dual vision positioning, robot + ground rail + multi-axis module drive multi-gri

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2

Ding, Xianli, Deyong Yu, Yongxiang Liu, et al. "Experimental study on waterproof performance of assembled station joints of Shenzhen Rail Transit Line." Vibroengineering Procedia 50 (September 21, 2023): 166–71. http://dx.doi.org/10.21595/vp.2023.23328.

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With the development of underground prefabricated building structure, the influence of waterproof performance on underground engineering construction is becoming more and more important. Based on the analysis of the current situation of waterproof technology of prefabricated subway station joints, this paper conducts similar experiments on the waterproof mechanism and construction characteristics of the water-swelling rubber water-stop selected at the joint, and analyzes the waterproof performance of the assembly joint and the overall performance of the structure. It lays the foundation for th

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Sen, Prakash Kumar, Mahesh Bhiwapurkar, and S. P. Harsha. "Analyzing behaviour of a rail wheel assembly with alumino thermite weldment with modal analysis simulations in ANSYS." Journal of Physics: Conference Series 2070, no. 1 (2021): 012239. http://dx.doi.org/10.1088/1742-6596/2070/1/012239.

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Abstract The Free vibration response of the Railway track is an important area in the design of the Rail and its joints to improve the ride comfort of the passengers. In this study, the rail weld considered is alumino thermite weldment used in majority of Indian Railways network. This paper aims at the study of the vibration response of rail wheel assembly having an AT weld on as a rail joint subjected to free vibration and to find the Natural frequencies of vibration and mode shapes. The geometric model of rail and weldment with wheel and axle components is modelled using Space-claim which is

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Sen, Prakash Kumar, Mahesh Bhiwapurkar, and S. P. Harsha. "Numerical Simulation and Parametric Analysis of Fatigue Crack in UIC60 Rail Thermite Welded Joint." IOP Conference Series: Materials Science and Engineering 1206, no. 1 (2021): 012027. http://dx.doi.org/10.1088/1757-899x/1206/1/012027.

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Abstract The mechanism of rail-wheel contact is the most essential field of study in railway engineering since it requires extensive application expertise, diagnostic skills, and a trustworthy analysis technique. In this research the fatigue life of a UIC60 rail AT weld under vertical load and its parametric effect has been studied, and for that a three-dimensional elastic-plastic finite element model is created using ANSYS space-claim software, and then finite element method is employed to analyse the full-scale model of wheel-track and weld system with realistic three-dimensional solution. M

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Sen, Prakash Kumar, Mahesh Bhiwapurkar, and S. P. Harsha. "Estimation of fatigue life parameters of an Alumino Thermic weld on UIC60 rail joint using LEFM." Journal of Physics: Conference Series 2115, no. 1 (2021): 012051. http://dx.doi.org/10.1088/1742-6596/2115/1/012051.

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Abstract At wheel track contact point, the high stress concentration, poor weld quality, and heterogeneity of weld material are the main factors that cause fatigue crack on any rail weld. Railway network agencies are concerned about the safety of the railway track when it comes to detecting and fixing weld faults to avoid vehicle derailment and loss of lives. This study analysed a numerical simulation of fatigue crack and its evolution under loaded service condition. A 3-D CAD wheel rail weld assembly model was built to study an AT welded joint under fatigue, and for stress concentration facto

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He, Gaiyun, Panpan Shi, Longzhen Guo, and Bohui Ding. "A linear model for the machine tool assembly error prediction considering roller guide error and gravity-induced deformation." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 234, no. 15 (2020): 2939–50. http://dx.doi.org/10.1177/0954406220911401.

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In assembly, error prediction and control according to the error state of the machine parts are the key links to ensuring the accuracy of the entire machine tool. In this study, an assembly error modeling method considering the error of the roller guide and gravity-induced deformation is proposed. First, based on the Hertz contact theory, a nonlinear error propagation model for the roller guide to the moving part is proposed. With this model, the analytical relationship between the straightness error of the guide rail and the errors of the moving part can be established. Then, after the linear

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Jezzini-Aouad, M., Patrick Flahaut, Saïd Hariri, D. Zakrzewski, and L. Winiar. "Improving Fatigue Performance of Alumino-Thermic Rail Welds." Applied Mechanics and Materials 24-25 (June 2010): 305–10. http://dx.doi.org/10.4028/www.scientific.net/amm.24-25.305.

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Rail transport development offers economic and ecological interests. Nevertheless, it requires heavy investments in rolling material and infrastructure. To be competitive, this transportation means must rely on safe and reliable infrastructure, which requires optimization of all implemented techniques and structure. Rail thermite (or alumino-thermic) welding is widely used within the railway industry for in-track welding during re-rail and defect replacement. The process provides numerous advantages against other welding technology commonly used. Obviously, future demands on train traffic are

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Sen, Prakash Kumar, Mahesh Bhiwapurkar, and S. P. Harsha. "A Numerical Simulation of UIC60 Rail-Weld's Fatigue and Crack Growth under Wheel Frictional Contact and Bending." Advanced Engineering Forum 45 (April 4, 2022): 31–42. http://dx.doi.org/10.4028/p-27z21t.

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In service condition rail joints, especially the weldments are under the action of various loadings which are not only working in multiple axis direction but also time-dependent having a cyclic and mixed-mode in nature and non-relative to each other. The surface of the rail and its weldment is acted by very high repetitive stress through the wheel and because of this contact stress the running surface or subsurface may have cracks or fractures due to fatigue. This work is based on numerical simulation of an aluminum thermite weldment on a UIC 60 rail under multi-axial fatigue crack propagation

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Zhang, Jian Fu, Zhi Jun Wu, Ping Fa Feng, and Ding Wen Yu. "Dynamic Modelling and Analysis of Rectangle-Shaped Plastic-Coated Slideways in Machine Tools." Applied Mechanics and Materials 50-51 (February 2011): 37–41. http://dx.doi.org/10.4028/www.scientific.net/amm.50-51.37.

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The plastic-coated slideways have been widely used for form-generating movement in machine tools. Its dynamic behavior plays an important role in the vibration properties of the whole machine. In this work, according to the situation that researches on this subject were rather insufficient, a theoretical research was analyzed concerning the stiffness and damping characteristics of rectangle-shaped plastic-coated slideways. The mathematical model was firstly suggested especially based on the assembly of the saddle and worktable. Both stiffness and damping characteristics on vertical and horizon

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Zhang, Wencui, Jian Zhang, Jingru Yan, and Yaohong Zhu. "Selection of the Key Segment Position for Trapezoidal Tapered Rings and Calculation of the Range of Jack Stroke Differences with a Predetermined Key Segment Position." Advances in Civil Engineering 2021 (December 24, 2021): 1–9. http://dx.doi.org/10.1155/2021/3606389.

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It is generally accepted that selecting the key segment position for trapezoidal tapered rings and controlling the shield machine advancement are challenging tasks for shield tunneling projects. In this work, we propose a method for calculating the key segment position based on the shield tail gap, jack stroke difference, and lining trend. To calculate all possible key segment positions other than that corresponding to the straight joint configuration, the shield tail gap that remains after segment assembly and the jack stroke difference corresponding to the advancement of the segmental lining

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Németh, Attila, and Szabolcs Fischer. "INVESTIGATION OF THE GLUED INSULATED RAIL JOINTS APPLIED TO CWR TRACKS." Facta Universitatis, Series: Mechanical Engineering 19, no. 4 (2021): 681. http://dx.doi.org/10.22190/fume210331040n.

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This article summarizes the research results related to our own conducted extensive laboratory tests of polymer composite and steel fishplated glued insulated rail joints (GIRJs), namely axial tensile tests as well as vertical static and dynamic tests. The investigation dealt with the examination of GIRJs assembled with steel and special glass-fiber reinforced plastic (polymer composite) fishplates, both of them for CWR railway tracks (i.e. so-called gapless tracks or, in other words, railway tracks with continuously welded rails). The exact rail joint types were MTH-P and MTH-AP, consistently

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Rathod, Chandrahas, David Wexler, Vladimir Luzin, Paul Boyd, and Manicka Dhanasekar. "A Neutron Diffraction Investigation of Residual Stresses in Rail Ends after Severe Deformation of Rail Surfaces." Materials Science Forum 777 (February 2014): 213–18. http://dx.doi.org/10.4028/www.scientific.net/msf.777.213.

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Insulated rail joints (IRJs) are a primary component of the rail track safety and signalling systems. Rails are supported by two fishplates which are fastened by bolts and nuts and, with the support of sleepers and track ballast, form an integrated assembly. IRJ failure can result from progressive defects, the propagation of which is influenced by residual stresses in the rail. Residual stresses change significantly during service due to the complex deformation and damage effects associated with wheel rolling, sliding and impact. IRJ failures can occur when metal flows over the insulated rail

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Hao, Xiaotian, and Hailong Wang. "Computer-Aided Analysis of Small Clear Space Intersection Tunnel and Heavy Load Railway Surrounding Rock Structure Dynamic Response Characteristics Analysis under Intelligent Manufacturing." Scientific Programming 2022 (September 28, 2022): 1–13. http://dx.doi.org/10.1155/2022/9667979.

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Among many tunnel construction projects, small clear tunnels have been the focus of urban rail transit construction in recent years. The purpose of this research work is to study the dynamic response characteristics of the surrounding rock structure of a heavy-duty railway with a small clearance crossing tunnel. It is proposed to analyze the dynamic response characteristics of the surrounding rock structure through the frequency response function. The vertical acceleration, tensile force, stress, and internal strength of the pipe section are specifically analyzed. The influence of the pipe joi

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A., Nemeth, and Fischer S. "LABORATORY TEST RESULTS OF GLUED INSULATED RAIL JOINTS ASSEMBLED WITH TRADITIONAL STEEL AND FIBRE-GLASS REINFORCED RESIN-BONDED FISHPLATES." Science and Transport Progress. Bulletin of Dnipropetrovsk National University of Railway Transport, no. 3(81) (June 27, 2019): 65–86. https://doi.org/10.15802/stp2019/171781.

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<strong>Purpose.</strong> The authors’ aim is to evaluate more precisely the deterioration process of glued insulated rail joints with polimer-composite and steel fishplates regarding to own laboratory tests. <strong>Methodology.</strong> The laboratory tests were executed by three-point static and three-point dynamic (fatigue) bending tests’ measurement results related to glued insulated rail joints with fibre-glass reinforced polymer-composite fishplates (brand: APATECH). During the research the static three-point bending tests were performed on rail joints assembl

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15

Skripachev, I. F., A. S. Klementov, N. L. Skripacheva, and T. V. Belous. "TO THE ISSUE OF AXIAL FORCE CONTROL IN THREADED JOINTS, MAINLY IN RAIL FASTENINGS TO RAILROAD SLEEPER PADS." Spravochnik. Inzhenernyi zhurnal, no. 327 (June 2024): 27–35. http://dx.doi.org/10.14489/hb.2024.06.pp.027-035.

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Method of attaching rails to railway sleeper pads and devices to implement the method refers to the field of mechanization of railway transport and can be used in the assembly, repair and maintenance of railroad track. The purpose of the study is to develop a method of attaching the rail to sleeper pads, which would guarantee the standard rail-to-sleeper pads pressure with minimal variation of its nominal value. The method of applying a vertical load to the nut of the terminal bolt and, therefore, to its stem in two stages makes it possible to apply a vertical force at the first stage that is

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16

Andenæs, Erlend, Torill Raugstad, Jonas Strid, Lars Gullbrekken, and Tore Kvande. "Watertight insertion of heavy sliding doors in exterior walls." Journal of Physics: Conference Series 2654, no. 1 (2023): 012112. http://dx.doi.org/10.1088/1742-6596/2654/1/012112.

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Abstract The joints around heavy terrace doors are considered a weak point in rain-exposed façades, as it is vulnerable to defects in design and construction. The insertion process of heavy sliding doors is a notable challenge. Design recommendations from manufacturers as well as national advisory agencies are currently lacking. This paper presents a full-scale laboratory study on the water tightness of heavy sliding doors with joints waterproofed according to five different solutions. The door assembly is mounted in a pressurized cabinet with water spray nozzles to simulate wind-driven rain.

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17

A., NEMETH, FEKETE I., SZALAI S., and FISCHER S. "SUPPLEMENTARY LABORATORY INVESTIGATIONS OF MODERN PLASTIC-POLYMER FISHPLATES FOR RAIL JOINTS." Science and Transport Progress. Bulletin of Dnipropetrovsk National University of Railway Transport, no. 6(84) (December 29, 2019): 86–102. https://doi.org/10.15802/stp2019/195212.

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<strong>Purpose.</strong> The authors’ goal is to determine the behavior of insulated rail joints with polymer-composite fishplates without glueing in the consideration of dynamic loadings regarding to own laboratory tests. In this paper they introduce the applied measurement opportunities. <strong>Methodology.</strong> Dynamic (fatigue) bending tests were performed by insulated rail joints assembled with plastic-polymer fishplates. The special laboratory measurements are related to digital picture/video measurement technique and assessment method executed by GOM hardware

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18

Kishor, Uikey, Saiyam Shailendra, Joy Morin, and Bhalavi Mona. "Efficacy of Monolateral External Fixator in the Complicated Traumatic Lower Extremity through Limb Reconstruction System with Evaluating The Result in Respect to Time for Union, Knee Range of Motion and Shortening." International Journal of Toxicological and Pharmacological Research 13, no. 8 (2023): 124–28. https://doi.org/10.5281/zenodo.11097456.

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<strong>Background: </strong>High-impact accident, often resulting from such as car crashes, motorcycle, and falls from heights, is a significant cause of fatalities among the younger population worldwide. The implications of losing a young and active member of the population due to such traumatic incidents are indeed profound and multifaceted, affecting individuals, families, communities, and the nation as a whole. The LRS (limb reconstruction system) consists of an assembly of clamps usually two or three which can slide on a rigid rail & can be connected by compression distraction u

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19

Liu, Pengfei, Kai Wei, Kaiyun Wang, and Quanbao Feng. "Testing of modified primary stiffness for heavy-haul locomotives operating on sharper-radius curves." Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics 233, no. 3 (2019): 531–48. http://dx.doi.org/10.1177/1464419319836006.

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For the typical wheelset drive subsystem with axle-suspended motor, the coupled vibration differential equations of wheelset and axle hung motor are derived. The mechanical model of traction rod is established. The subsystems are integrated into a whole locomotive-track coupled dynamic model which is verified from the aspects of load transfer and curving negotiation performance. To reduce the wheel–rail dynamic interaction of six-axle heavy-haul locomotive passing through curves in old existing lines, the parametric optimization flow of primary rubber joint is presented. The stiffness of 12 ne

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20

Wang, Lin, and Hua Ge. "Effect of rain leakage on hygrothermal performance of highly insulated wood-framed walls: a stochastic approach." Canadian Journal of Civil Engineering 46, no. 11 (2019): 979–89. http://dx.doi.org/10.1139/cjce-2019-0223.

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Wind-driven rain is one of the most important moisture sources that may lead to moisture damage risks of building envelopes, particularly when the rainwater unintentionally infiltrates into the envelope assembly through defects of the wall components. This paper proposes a stochastic modelling approach to evaluate the impact of rain infiltration on hygrothermal performance of highly insulated wood-framed walls, including an I-joist deep cavity wall, two exterior insulated walls, and a conventional 2×6 stud wall as the baseline wall. The stochastic hygrothermal models of the walls are created b

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Darenskiy, Oleksandr, Nataliya Bygaets, Olga Horiyinova, Sergey Voznenko, and Stanislav Kulik. "A longer service life of intermediate elastic fastenings KPP-5 due to application of pads PRP-3.2." MATEC Web of Conferences 230 (2018): 01004. http://dx.doi.org/10.1051/matecconf/201823001004.

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Since 2003 Ukrainian railways have used KPP-5 intermediate elastic fastenings. These fastenings unlike their predecessors (for example, terminal-bolted fastenings (KB) widely used on railways), first of all, have fewer elements. The KPP-5 fastening does not include screw joints, which considerably increases the pressing force between rail and tie, and resistance to track displacement forces. This may lead to reduction of the total labour input for routine track maintenance due to cutback of track works needed for mounting terminal and insert bolts. The article deals with forecasting the operat

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Fedin, Vladimir, Alexey Bortz, Yulia Ronzhina, Yevgeniy Dudkin, and Ludmila Andreeva. "JUSTIFICATION OF RAIL FASTENING SELECTION FOR HEAVY HAUL RAILWAY OPERATION." Bulletin of scientific research results, no. 1 (March 17, 2018): 71–86. http://dx.doi.org/10.20295/2223-9987-2018-1-71-86.

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Objective: To improve track maintenance, which includes the reduction of damageability and life endurance improvement of ferroconcrete rail sleepers in maintenance, elimination of factors of increased dynamic impact on sub rail support, rail fastening design for heavy haul operation, which provides for traffic safety and improvement of economic performance indicators under increased mechanical loading conditions, taking into account severe weather conditions (freeze and thaw). Methods: Service damage analysis, laboratory and benchmark tests of individual track elements and in the assembled con

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Turbański, Wojciech, Maciej Sydor, Łukasz Matwiej, and Krzysztof Wiaderek. "Moisture swelling and shrinkage of pine wood versus susceptibility to robotic assembly of furniture elements." Annals of WULS, Forestry and Wood Technology 115 (September 26, 2021): 63–71. http://dx.doi.org/10.5604/01.3001.0015.5274.

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Moisture swelling and shrinkage of pine wood and susceptibility to robotic assembly of furniture elements. Background and Objectives. Processing technology, storage conditions and wood properties affect the actual dimensions of wooden elements. It was decided to experimentally check how the dimensions of samples, made of the selected wood species, will change under the influence of different storage conditions, typical for industrial environments. And especially how these changes will affect the susceptibility to assembly of upholstery frame rails that form a box joint. Materials and Methods.

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Bielek, B., D. Szabo, and J. Klem. "New test equipment for testing the watertightness of facade structures in-situ." IOP Conference Series: Materials Science and Engineering 1252, no. 1 (2022): 012004. http://dx.doi.org/10.1088/1757-899x/1252/1/012004.

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Abstract With the current trend of construction of high-rise buildings in urban agglomerations, ensuring watertightness of their facade structures exposed to the effects of high-intensity wind-driven rain is coming to the fore. Laboratory experimental testing of water impermeability of elements of building envelope structures and their joints is performed in the process of preparation of the facade implementation in accordance with STN EN 1027: 2002 in rain chamber equipment. Due to the fact that the quality and functional properties of the finished facade are significantly influenced by the a

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Nemeth, A., and S. Fischer. "LABORATORY TEST RESULTS OF GLUED INSULATED RAIL JOINTS ASSEMBLED WITH TRADITIONAL STEEL AND FIBRE-GLASS REINFORCED RESIN-BONDED FISHPLATES." Science and Transport Progress. Bulletin of Dnipropetrovsk National University of Railway Transport, no. 3(81) (June 27, 2019): 65–86. http://dx.doi.org/10.15802/stp2019/171781.

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Nicolau, Antoniu, Marius Nicolae Baba, Camelia Cerbu, Cătălin Cioacă, Luminița-Maria Brenci, and Camelia Cosereanu. "Evaluation of 3D-Printed Connectors in Chair Construction: A Comparative Study with Traditional Mortise-and-Tenon Joints." Materials 18, no. 1 (2025): 201. https://doi.org/10.3390/ma18010201.

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The present paper investigates the possibility of replacing the traditional L-type corner joint used in chair construction with a 3D printed connector, manufactured using the Fused Filament Fabrication (FFF) method and black PLA as filament. The connector was designed to assemble the legs with seat rails and stretchers, and it was tested under diagonal tensile and compression loads. Its performance was compared to that of the traditional mortise-and-tenon joint. Stresses and displacements of the jointed members with connector were analyzed using non-linear Finite Element Method (FEM) analysis.

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Petrukhin, Volodymyr. "Modular loading units and modular cargo transport complexes for intermodal transportation liquid cargo." Journal of Mechanical Engineering and Transport 18, no. 2 (2024): 141–47. http://dx.doi.org/10.31649/2413-4503-2023-18-2-141-147.

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The purpose of the article is to analyze the problems of liquid cargo transportation between Ukraine and the EU countries, due to the non-interoperability of their railway transport systems. The analysis of existing solutions in the intermodal way of transporting liquid cargo was carried out. Their shortcomings are pointed out and their solution proposed by introducing a modular tank container MVO 480.00.110-02 for intermodal transportation of fuels and lubricants (F&L), liquefied petroleum gases (LPG), oil and other liquid cargoes by rail transport of 1435/1520 mm gauges. In the condition

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Camarena, Ernesto, Evan Anderson, Josh Paquette, Pietro Bortolotti, Roland Feil, and Nick Johnson. "Land-based wind turbines with flexible rail-transportable blades – Part 2: 3D finite element design optimization of the rotor blades." Wind Energy Science 7, no. 1 (2022): 19–35. http://dx.doi.org/10.5194/wes-7-19-2022.

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Abstract. Increasing growth in land-based wind turbine blades to enable higher machine capacities and capacity factors is creating challenges in design, manufacturing, logistics, and operation. Enabling further blade growth will require technology innovation. An emerging solution to overcome logistics constraints is to segment the blades spanwise and chordwise, which is effective, but the additional field-assembled joints result in added mass and loads, as well as increased reliability concerns in operation. An alternative to this methodology is to design slender flexible blades that can be sh

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Al-Kulabi, Ali Khazaal Jawad. "The Concept of Desertification, Its Causes and Effects, and Treatments." Journal La Lifesci 3, no. 1 (2022): 1–13. http://dx.doi.org/10.37899/journallalifesci.v3i1.550.

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Since the United Nations General Assembly passed two resolutions in December 1974, the term "desertification" has become a part of international development discourse: The first is a call to all countries to pay attention to desertification research and work together to explore its causes and find strategies to prevent it. The decision to organize an international conference on desertification in 1977 was the second. From August 29 to September 9, 1977, the conference was held in Nairobi, Kenya. The term "desertification" seems to have taken the place of prior words like "desert encroachment."

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Bringi, Viswanathan, Mircea Grecu, Alain Protat, Merhala Thurai, and Christian Klepp. "Measurements of Rainfall Rate, Drop Size Distribution, and Variability at Middle and Higher Latitudes: Application to the Combined DPR-GMI Algorithm." Remote Sensing 13, no. 12 (2021): 2412. http://dx.doi.org/10.3390/rs13122412.

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The Global Precipitation Measurement mission is a major U.S.–Japan joint mission to understand the physics of the Earth’s global precipitation as a key component of its weather, climate, and hydrological systems. The core satellite carries a dual-precipitation radar and an advanced microwave imager which provide measurements to retrieve the drop size distribution (DSD) and rain rates using a Combined Radar-Radiometer Algorithm (CORRA). Our objective is to validate key assumptions and parameterizations in CORRA and enable improved estimation of precipitation products, especially in the middle-t

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Кукушкин, С. С., та А. Н. Белов. "Перспективы развития волоконно-оптических систем измерений". Автоматика, связь, информатика, № 2(2) (4 лютого 2025): 19–23. https://doi.org/10.62994/at.2025.2.2.004.

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Статья посвящена исследованиям в области распределенных и точечных волоконно-оптических измерений (РВОИ и ТВОИ). Представлены результаты этих исследований. Показаны направления разрешения проблем, связанных с одновременным использованием различных возможностей волоконно-оптической техники (ВОТ) для поиска наиболее продуктивных методов и технологий комплексирования антагонистических функций передачи диагностической информации на основе волоконно-оптических линий связи. The article is devoted to research and obtained results related to the field of distributed and point-based fiber-optic measure

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Firrone, Christian Maria, and Giuseppe Battiato. "A Test Rig for the Experimental Investigation on the Nonlinear Dynamics in the Presence of Large Contact Interfaces and Numerical Models Validation." Journal of Vibration and Acoustics 143, no. 3 (2020). http://dx.doi.org/10.1115/1.4048560.

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Abstract The simulation of the coupling between components modeled by finite elements (FEs) plays an important role for the prediction of the forced response of the assembly in terms of resonant frequencies, vibration amplitudes, and damping. This is particularly critical when the time-varying stress distribution must be limited for vibrating components with thin thickness coupled with large contacts. Typical examples can be found in aeronautical structures (plates, panels, and bladed disk components) assembled with bolted flanges, riveted lap joints, or joints without hole discontinuities lik

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Cascino, Alessio, Enrico Meli, and Andrea Rindi. "A strategy for lightweight designing of a railway vehicle car body including composite material and dynamic structural optimization." Railway Engineering Science, July 3, 2023. http://dx.doi.org/10.1007/s40534-023-00312-6.

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AbstractRolling stock manufacturers are finding structural solutions to reduce power required by the vehicles, and the lightweight design of the car body represents a possible solution. Optimization processes and innovative materials can be combined in order to achieve this goal. In this framework, we propose the redesign and optimization process of the car body roof for a light rail vehicle, introducing a sandwich structure. Bonded joint was used as a fastening system. The project was carried out on a single car of a modern tram platform. This preliminary numerical work was developed in two m

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Viana, G., RJC Carbas, M. Costa, MD Banea, and LFM da Silva. "A new cohesive element to model environmental degradation of adhesive joints in the rail industry." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, August 10, 2020, 095440622094890. http://dx.doi.org/10.1177/0954406220948901.

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This work studied the capability of structural adhesives to bond an aluminium rail used to assemble the seats inside the train. Scaled specimens of these joints were mechanically tested under a range of temperatures (−40 °C up to 80 °C) before and after ageing in distilled water in order to simulate real life conditions. A three-dimension numerical simulation was carried out to understand the magnitude of stresses present in the adherends and in the adhesive layer. A new cohesive element was developed using the finite element (FE) to predict the behaviour of an adhesive joint after environment

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Wu, Juyang, Sha Ma, Ran Wang, et al. "A novel technique for constructing prefabricated subway stations under open excavation with inner support." Proceedings of the Institution of Civil Engineers - Engineering Sustainability, October 24, 2023, 1–9. http://dx.doi.org/10.1680/jensu.23.00015.

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Prefabricated construction is essential for realising green, efficient and sustainable development of rail transit. However, limited space in foundation pits and cross-interference with inner struts mean that the advantages of existing prefabrication technology cannot be leveraged effectively to build subway stations under open excavation with inner support. In this paper, this problem is addressed by introducing a modular design method and two novel connection technologies. The proposed modular design method is sufficiently adaptable to balance the use of space between the station structure a

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Moustafa, Mohamed, allah Medhat Abd, Ramy Magdy, Ahmed Abdrabou, Islam Shaheen, and Hussein M. Kamal. "ANALYTICAL STUDY AND CONSERVATION PROCESSES OF SCRIBE BOX FROM OLD KINGDOM." August 7, 2017. https://doi.org/10.5281/zenodo.840011.

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The scribe box under study dates back to the old kingdom. It was excavated by the Italian expedition in Qena (1935-1937). The box consists of the lid and the body. The inner side of the lid is decorated with ancient Egyptian inscriptions written with a black pigment. The box was made by using several panels assembled together by wooden dowels and secured with vegetable ropes. The entire box is covered with a red pigment. This study aims to use analytical techniques to identify and have deep understanding for the box compo-nents. Moreover, the authors were significantly interested in using infr

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Gíslason, Kári. "Independent People." M/C Journal 13, no. 1 (2010). http://dx.doi.org/10.5204/mcj.231.

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There is an old Danish fable that says that the Devil was watching when God created the earth, and that, as the creation progressed, he became increasingly agitated over the wondrous achievements he was made to witness. At the end of it all, the Devil turned to God, and said, ‘Now, watch this.’ He created Iceland. It’s a vision of the country that resembles my own. I have always thought of Iceland as the island apart. The place that came last in the earth’s construction, whoever the engineer, and so remains forever distant. Perhaps that’s because, for me, Iceland is a home far from home. It is

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