A Study on the Fatigue Test of Bogie Frame by Stress Measurement

2008 ◽  
Vol 385-387 ◽  
pp. 645-648 ◽  
Author(s):  
Sung Cheol Yoon ◽  
Chang Sung Jeon ◽  
Won Kyung Kim ◽  
Jeong Guk Kim ◽  
Sang Hoon Chang
Keyword(s):  
Evaluation Method ◽  
Stress Measurement ◽  
Fem Analysis ◽  
Maximum Load ◽  
Load Test ◽  
Test Results ◽  
Static Load Test ◽  
Loading Test ◽  
Bogie Frame ◽  
Design Load

This paper describes the results of structural analysis and loading test of a bogie frame. The purpose of the analysis and test is to evaluate the safety and functionality of the bogie frame under maximum load. The bogie system consist of the bogie frame, suspensions, wheel-sets, a brake system and a transmission system. Of these components, the bogie frame is the major component subjected to the vehicle and passenger loads. The evaluation method used the JIS E 4207 specifications throughout the FEM analysis and static load test. The test results have shown the bogie frame to be safe and stable under design load conditions.

A Study on the Structural Analysis and Loading Test of the Bogie Frame

2006 ◽  
Vol 326-328 ◽  
pp. 1087-1092 ◽  
Author(s):  
Sung Cheol Yoon ◽  
Won Kyung Kim ◽  
Jeong Guk Kim
Keyword(s):  
Structural Analysis ◽  
Evaluation Method ◽  
Fem Analysis ◽  
Maximum Load ◽  
Load Test ◽  
Test Results ◽  
Static Load Test ◽  
Loading Test ◽  
Bogie Frame ◽  
Design Load

This paper describes the results of structural analysis and loading test of a bogie frame. The purpose of the analysis and test is to evaluate the safety and functionality of the bogie frame under maximum load. The bogie system consist of the bogie frame, suspensions, wheel-sets, a brake system and a transmission system. Of these components, the bogie frame is the major component subjected to the vehicle and passenger loads. The evaluation method used the JIS E 4207 specifications throughout the FEM analysis and static load test. The test results have shown the bogie frame to be safe and stable under design load conditions.

A Study on the Fracture Test in Running System of Railway

2010 ◽  
Vol 452-453 ◽  
pp. 49-52
Author(s):  
Sung Cheol Yoon ◽  
Jeong Guk Kim ◽  
Sung Hyuk Park ◽  
Kwang Sun Baik ◽  
Kang Youn Choe
Keyword(s):  
Evaluation Method ◽  
Fem Analysis ◽  
Maximum Load ◽  
Load Test ◽  
Test Results ◽  
Static Load Test ◽  
Loading Test ◽  
Bogie Frame ◽  
Design Load ◽  
Running System

This paper describes the results of structural analysis and loading test of a bogie frame. The purpose of the analysis and test is to evaluate the safety and functionality of the bogie frame under maximum load. The bogie system consist of the bogie frame, suspensions, wheel-sets, a brake system and a transmission system. Of these components, the bogie frame is the major component subjected to the vehicle and passenger loads. The evaluation method used the JIS E 4207 specifications throughout the FEM analysis and static load test. The test results have shown the bogie frame to be safe and stable under design load conditions.

Structural Strength Evaluation of a Carbody by Finite Element Analysis and Load Test

2007 ◽  
Vol 353-358 ◽  
pp. 2728-2731 ◽  
Author(s):  
Sung Cheol Yoon ◽  
Chang Sung Jeon ◽  
Jeong Guk Kim
Keyword(s):  
Structural Analysis ◽  
Performance Test ◽  
Maximum Load ◽  
The Body ◽  
Load Test ◽  
Test Results ◽  
Body Structure ◽  
Loading Test ◽  
Element Analysis ◽  
Multiple Unit

This paper describes a carbody structural analysis and the result of its loading test. The purpose of this study is to evaluate the safety and functionality of the body structure operating under maximum load. Aluminum alloy was used as the body structure’s material. The body structure consisted of side frame, under frame, roof frame, and end frame. Of these components, the side frame and under frame were the most important components considering the vehicle and passenger loads. Both structural analysis and loading test were performed under the condition based on "Performance Test Standard for Electrical Multiple Unit" with the reference code JIS E 7105. The test results showed that the body structure is safe and stable under the condition of designed load.

Experimental Study on the Fatigue Strength of the Bogie Frame for Tilting Railway Vehicles

2006 ◽  
Vol 321-323 ◽  
pp. 590-593 ◽  
Author(s):  
Nam Po Kim ◽  
Jung Seok Kim ◽  
Sung Il Seo ◽  
Tae Won Park
Keyword(s):  
Experimental Study ◽  
Fatigue Strength ◽  
Fatigue Loading ◽  
Load Test ◽  
Static Load Test ◽  
Fatigue Load ◽  
Loading Test ◽  
Bogie Frame ◽  
Goodman Diagram ◽  
Tilting Train

This paper shows the experimental study to evaluate the fatigue strength of a bogie frame for Korean tilting train. The various load cases were established based on the international standard (UIC615-4) and the special tilting load case, which is unique in the tilting train, was derived by dynamic analysis and logical assumption of operation under worst tilting condition. The experimental study was conducted by means of two ways, both static and fatigue loading test. Through the static load test, the safety against fatigue was assessed using Goodman diagram of the material used. The fatigue load test was carried out up to 1x107cycles. The fatigue strength was assessed by fatigue crack inspection by means of NDT test at the stage of 6x106cycles and 1x107cycles.

A Study on Structual Strength in Body Structure of Composite Material

2010 ◽  
Vol 654-656 ◽  
pp. 2668-2671
Author(s):  
Sung Cheol Yoon ◽  
Joon Hyung Ryu ◽  
Jeong Guk Kim
Keyword(s):  
Composite Structure ◽  
Performance Test ◽  
Honeycomb Structure ◽  
Load Test ◽  
Test Results ◽  
Static Load Test ◽  
Design Load ◽  
Aluminum Honeycomb ◽  
Multiple Unit ◽  
Tilting Train

This study introduces the structural analysis and the testing results of the composite structure which is applied to tilting train in Korea. The composite structure is made of aluminum honeycomb structure materials like a sandwich. The static load test was performed to evaluate the structural characteristic and stability of the composite structure. Considering the vertical, compressive, torsional load and 3-point supporting type as a testing terms, the structural stability of a carbody was evaluated. Load test are based on "Performance Test Standard for Electrical Multiple Unit" with the reference code JIS E 7105. The test results have been very safety and stable for design load conditions.

scholarly journals Experimental Study on Mechanical Property of Stiffening-ribbed-hollowpipe Reinforced Concrete Girderless Floor with Four Clamped Edges Supported

2013 ◽  
Vol 7 (1) ◽  
pp. 170-178 ◽  
Author(s):  
Weijun Yang ◽  
Yongda Yang ◽  
Jihua Yin ◽  
Yushuang Ni
Keyword(s):  
Mechanical Property ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Reinforced Concrete ◽  
Large Scale ◽  
Load Test ◽  
Static Load Test ◽  
Loading Test ◽  
Element Analysis ◽  
Clamped Edges

In order to study the basic mechanical property of cast-in-place stiffening-ribbed-hollow-pipe reinforced concrete girderless floor, and similarities and differences of the structural performance compared with traditional floor, we carried out the destructive stage loading test on the short-term load test of floor model with four clamped edges supported in large scale, and conducted the long-term static load test. Also, the thesis conducted finite element analysis in virtue of ANSYS software for solid slab floor, stiffening-ribbed-hollow-pipe floor and tubular floor. The experiment indicates that the developing process of cracks, distribution and failure mode in stiffening-ribbed-hollow-pipe floor are similar to that of solid girderless floor, and that this kind of floor has higher bearing capacity and better plastic deformation capacity. The finite element analysis manifests that, compared with solid slab floor, the deadweight of stiffening-ribbed-hollow-pipe floor decreases on greater level while deformation increases little, and that compared with tubular floor, this floor has higher rigidity. So stiffening-ribbed-hollow-pipe reinforced concrete girderless floor is particularly suitable for long-span and large-bay building structure.

Static Load Test of Frame-Structure Slab

2013 ◽  
Vol 790 ◽  
pp. 227-230
Author(s):  
Jian Feng Su ◽  
Yu Feng Xu
Keyword(s):  
Carrying Capacity ◽  
Static Load ◽  
Load Test ◽  
Frame Structure ◽  
Test Results ◽  
Static Load Test ◽  
Important Method ◽  
Floor Slab ◽  
Testing Scheme

Floor slab static load test is a important method to judge the performance and carrying capacity of the slab. This paper, with the background of a factory frame-structure slab, introduced the testing scheme, the details of the testing process as well as the test results. The testing cases provide a useful reference for the same type of project.

Cross-Sensitivity Characteristics of Instrumented Wheelset Associated With Longitudinal Force and Lateral Contact Position

2021 ◽  
Author(s):  
Takatoshi Hondo ◽  
Takayuki Tanaka ◽  
Shoya Kuniyuki ◽  
Mitsugi Suzuki
Keyword(s):  
Measurement Accuracy ◽  
Contact Point ◽  
Fem Analysis ◽  
Longitudinal Force ◽  
Lateral Position ◽  
Contact Forces ◽  
Load Test ◽  
Static Load Test ◽  
Cross Sensitivity ◽  
The Cross

Abstract It is crucial to grasp wheel-rail contact forces in the evaluation of running safety and curving performance of railway vehicles. To measure the wheel-rail contact forces, instrumented wheelset, which has the strain gauges on the wheel surface, is widely used. The purpose of this research is to increase the measurement accuracy of the wheel-rail contact forces by understanding the detailed characteristics of the instrumented wheelset. Although the various researches on the instrumented wheelset have been carried out to increase the measurement accuracy of wheel-rail contact forces, there are few works considering the longitudinal force and the lateral shift of the wheel-rail contact point. However, sometimes the longitudinal force has a non-negligible influence on the measurement accuracy on the instrumented wheelset. In this paper, the authors clarify the cross-sensitivity characteristics of the instrumented wheelset when the longitudinal force is applied to the various lateral position on the wheel tread through the FEM analysis and the static load test. The authors also propose a method to approximate the cross-sensitivity as an analytical function of the lateral and circumferential contact positions.

Prediction method of bridge static load test results based on Kriging model

2020 ◽  
Vol 214 ◽  
pp. 110641 ◽  
Author(s):  
Pengzhen Lu ◽  
Zijie Xu ◽  
Yangrui Chen ◽  
Yutao Zhou
Keyword(s):  
Static Load ◽  
Prediction Method ◽  
Kriging Model ◽  
Load Test ◽  
Test Results ◽  
Static Load Test

scholarly journals Load Carrying and Hydrostatic Performances of Innovative Encapsulated Anchorage System for Unbonded Single Strand

2019 ◽  
Vol 2019 ◽  
pp. 1-16
Author(s):  
Min Sook Kim ◽  
Young Hak Lee
Keyword(s):  
Stress Concentration ◽  
Transfer Test ◽  
Load Transfer ◽  
Maximum Load ◽  
Load Test ◽  
Static Load Test ◽  
Element Analysis ◽  
Bearing Plate ◽  
Anchorage System ◽  
Load Carrying

A new anchorage system is proposed having a circular bearing plate and curvature between the bearing plate and the anchor head to improve stress concentration. A lid with a screw instead of the grouting method is also proposed to prevent moisture penetration. The details of the anchorage device have been chosen to reduce stress concentration based on the finite element analysis. Static load test, load transfer test, and hydrostatic test of fabricated devices were carried out according to ETAG 013 to evaluate the proposed design. As results, the anchorage slip and stabilization satisfied the recommendations of ETAG 013. The maximum load in the load transfer test was at least 1.1 times the ultimate tendon strength. The results of the hydrostatic test showed that the developed anchorage device is watertight to protect against corrosion. As a result of bursting force test, it was confirmed that the proposed anchorage device has more advantages than the conventional rectangular anchorage devices in terms of stress distribution.

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