Hardware Design of Track Circuit in Rail Transit Test System Based on ICL8038

2014 ◽  
Vol 599-601 ◽  
pp. 1531-1534 ◽  
Author(s):  
Chun Hong Hu ◽  
Yu Chen ◽  
Bai Xiang Sun ◽  
Guo Rui Zhai
Keyword(s):  
Hardware Design ◽  
Experimental System ◽  
Test System ◽  
Testing System ◽  
Rail Transportation ◽  
Functional Requirements ◽  
Practical Operation ◽  
Railway Signal ◽  
The University ◽  
Professional Teaching

Rail transportation experimental system is the urgent need of modern railway signal professional teaching equipment in the university. This equipment can deepen students' understanding of theoretical knowledge and improve their ability of practical operation. In this paper, the hardware design of rail power supply circuit in the testing system was completed. Using ICL8038 as a signal generator of the power output board, the design met the functional requirements in practical test.

Design and Simulation of High-Frequency Track Circuit for Rail Transportation Experimental System

2014 ◽  
Vol 568-570 ◽  
pp. 1253-1256
Author(s):  
Chun Hong Hu ◽  
Yuan Tian ◽  
Guo Rui Zhai ◽  
Jun He
Keyword(s):  
High Frequency ◽  
Experimental System ◽  
Test System ◽  
Theoretical Knowledge ◽  
Rail Transportation ◽  
Functional Requirement ◽  
Frequency Test ◽  
Practical Operation ◽  
Railway Signal ◽  
Track Circuit

Rail transportation experimental system is the urgent need of modern railway signal professional colleges and universities teaching equipment. This equipment can deepen students' understanding of theoretical knowledge and improve their ability of practical operation. In this article the design schemes of track circuit for high-frequency test system are simulated. Through the result of simulation the design meet the functional requirement.

The Research of Flexible Testing System

2013 ◽  
Vol 756-759 ◽  
pp. 701-704
Author(s):  
Gang Niu ◽  
Guo Shun Chen ◽  
Wen Bin Cao ◽  
Ya Jun Zhang ◽  
Wen Ya Bai
Keyword(s):  
Detection System ◽  
Hardware Design ◽  
Test System ◽  
Testing System ◽  
Equipment Maintenance ◽  
Signal Conditioning ◽  
The Core ◽  
Flexible Technology ◽  
Software And Hardware ◽  
Design Ideas

For the purpose of solving the problems, such as many kinds of C3I equipment signals to be test, complicated technology and technology fast updates, a test system based on flexible technology is proposed. In this system, the core technical cocept of systematize and developmental design is adopt. In this paper, the design ideas, software and hardware design and test diagnosis process are described in detail. The detection system based on flexible test achieves calling testing resources according to the different objects, interfaces conversion and signal conditioning. The system has good characteristics on flexibility, reliability, adaptability and expand [1-, which is of great significance for the equipment maintenance and support.

Framework and performance analysis of college English testing system based on data mining technology

2021 ◽  
pp. 1-11
Author(s):  
Liu Narengerile ◽  
Li Di ◽  
Keyword(s):  
Data Mining ◽  
Test System ◽  
Test Time ◽  
Testing System ◽  
Test Results ◽  
System Software ◽  
Examination System ◽  
Mining Technology ◽  
College English ◽  
And Performance

At present, the college English testing system has become an indispensable system in many universities. However, the English test system is not highly humanized due to problems such as unreasonable framework structure. This paper combines data mining technology to build a college English test framework. The college English test system software based on data mining mainly realizes the computer program to automatically generate test papers, set the test time to automatically judge the test takers’ test results, and give out results on the spot. The test takers log in to complete the test through the test system software. The examination system software solves the functions of printing test papers, arranging invigilation classrooms, invigilating teachers, invigilating process, collecting test papers, scoring and analyzing test papers in traditional examinations. Finally, this paper analyzes the performance of this paper through experimental research. The research results show that the system constructed in this paper has certain practical effects.

Promoting positive washforward through personalised test feedback and other benefits: Piloting a computer-based testing system

2020 ◽  
Vol 10 (1) ◽  
pp. 235-244
Author(s):  
Elena A. M. Gandini ◽  
Tania Horák
Keyword(s):  
Foreign Language ◽  
Testing System ◽  
Test Results ◽  
Test Feedback ◽  
Teachers And Students ◽  
Computer Based ◽  
Computer Based Testing ◽  
The University ◽  
Future Learning ◽  
Personalised Feedback

AbstractThis contribution reports on the developing and piloting of a computer-based version of the test of English as a foreign language produced by the University of Central Lancashire (UCLan), where it is currently used for the admission of international students and the subsequent evaluation of their language progress. Among other benefits, computer-based testing allows for better and individualised feedback to both teachers and students, and it can provide a more authentic test experience in light of the current digital shift that UK universities are undergoing. In particular, the qualitative improvement in the feedback available for test-takers and teachers was for us a crucial factor. Providing students with personalised feedback, that is, directly linked to their performance, has positive washforward, because it means we can guide their future learning, highlighting the areas they need to work on to improve their language skills and giving them suggestions on how to succeed in academia. Furthermore, explaining the meaning of test results in detail improves transparency and ultimately washback, as teachers can use the more accessible marking criteria, together with information on how their students performed, to review plans and schemes of work for subsequent courses.

Research on Numerical Integration Algorithm for MDOF Pseudo-Dynamic Test

2012 ◽  
Vol 204-208 ◽  
pp. 4820-4826
Author(s):  
Xin Guo ◽  
Li Hua Zhu ◽  
Tian Li Wang
Keyword(s):  
Dynamic Test ◽  
Experimental System ◽  
Test System ◽  
Unconditional Stability ◽  
Comparison Study ◽  
Restoring Force ◽  
Integration Algorithm ◽  
Integration Algorithms ◽  
Simulation Results ◽  
Force Characteristics

This paper focuses on two integration algorithms used for pseudo-dynamic test, explicit Newmark algorithm and implicit alpha-C algorithm. The comparison study between the test and simulation results shows that: the non-uniform distribution of mass, restoring force characteristics and higher frequency vibration modality are simulated more accurately using the alpha-C algorithm than using explicit Newmark algorithm. The alpha-C algorithm also leads to high iterative accuracy and unconditional stability. Replacing the explicit Newmark algorithm in original experimental system by implicit alpha-C algorithm, the MDOF pseudo dynamic test system can be realized successfully.

A New Hardware-in-the-Loop Test System for Electronic Control Unit of Dual-Clutch Transmission Vehicle

2012 ◽  
Vol 490-495 ◽  
pp. 13-18 ◽  
Author(s):  
Ran Chen ◽  
Lin Mi ◽  
Wei Tan
Keyword(s):  
Numerical Simulation ◽  
Electronic Control Unit ◽  
Control Unit ◽  
Test System ◽  
Testing System ◽  
Primary Concern ◽  
Hardware In The Loop ◽  
Electronic Control ◽  
Simulation Environment ◽  
Dual Clutch Transmission

Hardware-in-the-loop simulation (HILS) is a scheme that incorporates some hardware components of primary concern in the numerical simulation environment. This paper discusses the implementation and benefits of using the HIL testing system for electronic control unit of dual-clutch transmission (DCT) vehicle.

scholarly journals Model Development for Combined University Admission System in Respect of Bangladesh

2021 ◽  
Vol 17 ◽  
pp. 111-117
Author(s):  
Sagor Mahmud ◽  
Ashikur Rahman Khan ◽  
Mahamudul Hasan Rana ◽  
Mai̇n Uddi̇n
Keyword(s):  
Model Development ◽  
Test System ◽  
Admission Process ◽  
Related Data ◽  
University Admission ◽  
Survey Form ◽  
Admission Tests ◽  
Admission System ◽  
Admission Test ◽  
The University

The intake system of our public university is each university conduct individual admission test. Each university has its self-admission test system. The student has to take part in the admission test for a particular subject and individual faculty of a university. In this scenario, the student has to take part in many admission tests. It's tough, time-consuming and costly to participate in many admission tests. In this circumstance, it's very much essential to discover a different or alternative process so that we can come out from such botheration and hassles. No method has been developed yet to release from these complexities and problems. This paper presents the issues of traditional admission system and how to solve this problem. To get a highly accurate model, admission related data is collected, then data is filtered, analysis and several experiments were executed. In this paper, we proposed three models that serve as the core design for the university admission system and then it is checked by a survey form, whether the model validates the requirements or not. The integrated admission system is convenient among three models. This model can reduce the limitation of the traditional admission system and provide a quality admission process.

Finite Element Analysis of Rail-End Bolt Hole and Fillet Stress on Bolted Rail Joints

2017 ◽  
Vol 2607 (1) ◽  
pp. 33-42 ◽  
Author(s):  
Kaijun Zhu ◽  
Yu Qian ◽  
J. Riley Edwards ◽  
Bassem O. Andrawes
Keyword(s):  
Finite Element ◽  
Vertical Displacement ◽  
Rail Transit ◽  
Rail Transportation ◽  
Element Analysis ◽  
Transit System ◽  
Transit Systems ◽  
Service Failures ◽  
The University ◽  
Continuously Welded Rail

A rail joint typically is one of the weakest elements of a track superstructure, primarily because of discontinuities in its geometric and mechanical properties and the high-impact loads induced by these discontinuities. The development of continuously welded rail has significantly reduced the number of rail joints, but many bolted joints remain installed in rail transit systems. Because of the unique loading environment of a rail transit system (especially high-frequency, high-repetition loads), defects related to bolted rail joints (e.g., joint bar failures, bolt hole cracks, and cracks in the upper fillet) continue to cause service failures and can pose derailment risks. Recent research in the Rail Transportation and Engineering Center at the University of Illinois at Urbana–Champaign has focused on investigating crack initiation in the bolt hole and fillet areas of bolted rail joints. Stress distribution was investigated at the rail-end bolt hole and upper fillet areas of standard, longer, and thicker joint bars under static loading conditions. Numerical simulations were organized into a comprehensive parametric analysis performed with finite element modeling. Preliminary results indicated that the longer joint bar performed similarly to the standard joint bar but the thicker joint bar reduced rail vertical displacement and rail upper fillet stresses compared with the standard joint bar. However, the thicker joint bar also may generate higher stresses at the rail-end bolt hole. Additionally, joint bar performance was dependent on the rail profile and bolt hole location.

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