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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Korean Society of Safety
Journal Basic Information
Journal DOI :
The Korean Society Safety
Editor in Chief :
Volume & Issues
Volume 22, Issue 6 - Dec 2007
Volume 22, Issue 5 - Oct 2007
Volume 22, Issue 4 - Aug 2007
Volume 22, Issue 3 - Jun 2007
Volume 22, Issue 2 - Apr 2007
Volume 22, Issue 1 - Feb 2007
Selecting the target year
Cause Analysis and Measure for Accident of Door Detachment in Elevator Platform
Kim, Eui-Soo ; Kim, Sang-Hyeon ; Kim, Dong-Hwan ; Park, Nam-Kyu ;
Journal of the Korean Society of Safety , volume 22, issue 6, 2007, Pages 1~6
A Recently elevator accidents were occurred and increased due to carelessness of user and violent behavior. The accident of door detachment in elevator platform by electronic motor scooter show a example of safety concerns and insensibility for safety awareness. In this report, we review the cause of accident of door detachment in elevator platform by electronic motor scooter, and show some suggestions of preventing from the safety concerns about this case.
Analysis on Safety Management of Elevator
Choi, Gi-Heung ;
Journal of the Korean Society of Safety , volume 22, issue 6, 2007, Pages 7~12
This study focuses on the statistical analysis on safety management of elevators. Specifically, frequency and severity of accidents in relation to conditional pass in periodic inspection, maintenance, market surveillance are analysed based on the statistical data and social loss due to poor management is estimated. The results of statistical analysis performed in this study will provide logical basis and future direction for improving the safety management system.
A Comparative Study on the Measurement of Smoke from Diesel Vehicle on Chassis-dynamometer using Reflection Photo and Light Extinction Method
Kim, Ju-Chul ; Lee, Choong-Hoon ;
Journal of the Korean Society of Safety , volume 22, issue 6, 2007, Pages 13~19
Diesel car's smoke measurement equipment and method were investigated based on the exhaust gas regulations. Reflection photo method and light extinction method for measuring smoke were compared under conditions of both no load mode and Lug-down 3 mode. Free acceleration mode at no load condition was used for regular inspection of diesel car, and Lug-down 3 mode was used for fine inspection of the diesel car. A correlation between no load mode and Lug-down 3 mode was investigated in this research. The smoke measured with reflection photo method was 1.5
2 times higher than that of light extinction method The correlation coefficient between reflection photo method and light extinction method for measuring smoke was 0.83, which shows comparatively high correlation between the two methods for measuring smoke in diesel engines.
Methodology of Tolerance Analysis of Deformable Assembly
Lee, Kwang-Soo ;
Journal of the Korean Society of Safety , volume 22, issue 6, 2007, Pages 20~26
The new integrated CAD-CAM systems induce an increasing demand for simulation tools, which are able to simulate industrial part assembly processes by welding, gluing, riveting or bolting(more generally by fastening). Concerning fastened flexible parts, there exist no efficient computational aid on tolerance and methodology available on the field. The first part briefly presents the approach method based on the finite element method for TADA(Tolerance Analysis of Deformable Assemblies). The second part compares the results obtained by simulation using the commercial FEM code with the measurements. The principal elements of dispersion have been identified and studied on an experimental basis in order to test the robustness of the TADA model. This has enabled us to verify the model's possibilities as regards industrial constraints such as the use of incompatible meshes or the use of triangular elements and so on.
A Study on Design Sensitivity of Elastomeric O-ring Squeezed and Highly Pressurized Under Laterally One-sided Constrained Condition
Park, Sung-Han ; Kim, Jae-Hoon ; Kim, Won-Hoon ;
Journal of the Korean Society of Safety , volume 22, issue 6, 2007, Pages 27~34
Static or dynamic elastomeric O-ring seals are installed between joining parts, and play key roles of high pressure-tightening. Sealing performance and structural safety of the O-ring are dependent on groove design, plain diameter, squeeze and applications such as pressure and temperature. In this study, to solve O-ring problem squeezed and highly pressurized under laterally one-sided constrained condition, hyperelastic FE analyses are performed, and FE results are compared with measured ones by computer-aided tomography, deformed shape and extrusion depth of the O-ring. Through the comparisons, FE analysis technique was verified. In order to evaluate design sensitivity, Taguchi method was used to select FE analysis cases. Adjustment parameters are clearance gap, groove comer radius, plain diameter and squeeze. By means of verified FE analysis technique, it has been analysed how the parameters have effects on contact stress fields, internal stress fields, and extrusion depths. Sealing performance has been evaluated based on contact stress fields and contact widths, and structural safety on internal stress and strain, extrusion lengths.
Analysis of Safety of the Chemical Facilities by Korea Risk Based-Inspection in the Petrochemical Plant
Kim, Tae-Ok ; Lee, Hern-Chang ; Shin, Pyng-Sik ; Choi, Byung-Nam ; Jo, Ji-Hoon ; Choi, Byung-Young ; Park, Sung-Hoo ; Kim, Hung-Kun ;
Journal of the Korean Society of Safety , volume 22, issue 6, 2007, Pages 35~40
As a way of improving the safety of the chemical facilities, the risk based-inspection(RBI) was executed for the facilities of the applied petrochemical plant using KS-RBI Ver. 3.0 program developed based on the API-581 based resource document(BRD). From an evaluation result of KS-RBI program, we could find the evaluation of the process safety management(PSM) for the applied plant, risk of the applied process, risk of static facilities and pipes, and the demage mechanism of the facilities. Also, we could suggest a proper inspection plan(frequency and method of inspection) using the calculated risk and the status of the facilities. Therefore, the applied plant could be achieved a reduced inspection cost by an extension of inspection frequency, improved productivity, improved reliability of the facilities, and a computerized history management.
A Study on the Possibility of Electrical Fires due to the Short Circuit and Ground Fault of Power Cable Supported by an Iron Fence
Kim, Jeong-Hun ; Park, Byoung-Ki ; Song, Jong-Hyeok ; Jung, Ki-Chang ;
Journal of the Korean Society of Safety , volume 22, issue 6, 2007, Pages 41~45
Short circuit and ground fault account for the primary causes of electrical fires. In this research, real-scale experiments were conducted to assess the possibility of electrical fires due to these causes. The experiment conditions were identical with an actual fire accident, in which the power cable was supported by an iron fence. The purposes of this research are to investigate the short circuit caused by wire cutting, the conductivity of the iron fence depending on its coating conditions, and the ground fault of one wire or two wires in an effort to reconstruct the fire accident. The test results show that, owing to the instant operation of circuit breaker in the moment of short circuit or ground fault, the generated ignition energy is far less than necessary to start an ignition. Therefore it is concluded that electrical fire is highly unlikely if the electric system is protected by a circuit breaker with normal functions.
A Study on the Burning Rate of Fire Retardant Treated Wood
Park, Hyung-Ju ;
Journal of the Korean Society of Safety , volume 22, issue 6, 2007, Pages 46~54
The purpose of this study was to examines the burning rate of fire retardant treated wood in the cone heater with a one-dimensional integral model. The wood samples used in this study were four species. The species of woods are Redwood, White oak, Douglas fir and Maple. Each sample was nominally 50mm thick and 100mm square. Samples were exposed to a range of incident heat fluxes 10 to
using the cone heater. A one-dimension integral model has been used to predict burning rate, heat of gasification, flame heat fluxes, charring rate and char depth of samples. As a result measurement of mass loss rate, softwoods(Redwood and Douglas fir) has relatively low value than those for hardwoods(White oak and Maple). Average charring rate of woods in case of fire retardant treatment showed reduction effect of 41.29%, 50.00%, 48.18% and 60.82% for Redwood, Douglas fir, White fir and Maple, respectively. Almost all the predictions from integral model showed faster charring than those measured. Average difference between predictions and experimental data was 16%, 9.5% and 11.8% for N, F1 and F2 respectively. Water-soluble fire retardant used in this study find out more effect in hardwood than softwood from the result of measurement of mass loss rate and average charring rate.
The Safe Erection Method of Suspension Bridges by Construction Sequence Analysis
Bang, Myung-Seok ;
Journal of the Korean Society of Safety , volume 22, issue 6, 2007, Pages 55~62
The structural safety of long span bridges such as suspension bridges is smaller under the construction stage than in the completion. But the importance of construction sequences has been neglected in most of safety check programs. On this study is developed the structural analysis method of suspension bridges considering construction sequences and structural analyses are performed by step by step during construction. This can be used to determine the safest erection method. The results shows that the more critical structural behavior appears under construction than after completion.
A Study on the Risk Index Model of Work Type in Architectural Construction Work
Chang, Seong-Rok ; Go, Seong-Seok ; Lee, Jong-Bin ;
Journal of the Korean Society of Safety , volume 22, issue 6, 2007, Pages 63~68
The purpose of this study is to verify the relation between the risk index using AHP(Analytic Hierarchy Process) and the risk index using Computing Model. For doing the objective, this research classified 22 work types in architectural construction work from the analysis Korean architectural standard specification and Korea occupational safety & health agency code. Based on the classified 22 work types in architectural construction work, the risk index of each work type was calculated by AHP and Computing Model. For verifying the correlation of risk index between AHP and Computing Model methods, SAS version 8.0 System, which is one of the statistics programs, was used.
A Study on the Relationship of Ship Automation System and Safety
Kim, Bi-A ; Lee, Jae-Sik ; Oh, Jin-Seok ;
Journal of the Korean Society of Safety , volume 22, issue 6, 2007, Pages 69~73
The recent huge maritime casualties and their environmental impacts showed that human error in ship navigation is one of the primary causes leading to accidents. In order to reduce maritime accidents and human errors in ship navigation, it is very important and urgent to improve the skills of navigators and develop advanced navigation support system for ship operations. For example, a SCMS(Ship Control and Management System), INS(Integrated Navigation System) and PCS(propulsion Control System) which are considered as a ship automation system was operated in ship. Furthermore, the most recent automation ships collision incidents warn us that only making automation ships alone is not sufficient for improving ship safety. Effective interaction between officer and ship automation system is essential for safety. In this paper, the interactive relationship between officer and the ship automation system was studied, then the research result for reducing maritime casualties will be presented.
Development of Operation Planning System for Worker's Productivity
Lim, Seok-Jin ; Park, Byung-Tae ; Park, Myon-Woong ; Paik, Seung-Yeol ; Jeong, Suk-Jae ;
Journal of the Korean Society of Safety , volume 22, issue 6, 2007, Pages 74~80
In manufacturing industry, machining technology for metal cutting processes has been considered traditional and economic dimensions such as production cost, production time and quality of a final product. However, owing to governmental regulations and the change of owner's cognizance, the safety of the workers becomes important in those fields. In this paper, the operation planning system developed as a key component of CAPP(Computer Aided Process Planning) system is introduced for milling operations. The main issue in the system is to determine the cutting conditions in achieving a balanced consideration of productivity and worker's safety. For this reason, the system performs the modification process of standard cutting conditions to satisfy those requirements. Related to machining safety in metal cutting, representative and habitual mistakes that operators perform without considering carefully the characteristic of machine or work piece are described and then the detailed algorithm and functions of the developed system is introduced and discussed.
Foot Classification for Manufacturing of Comfortable Shoes
Leem, Young-Moon ; Bang, Hey-Kyong ; Shin, Kyoung-Jin ;
Journal of the Korean Society of Safety , volume 22, issue 6, 2007, Pages 81~86
The purpose of this study is to provide foot classification on 30 generation young men and women by factor analysis and cluster analysis. The sample for this work was chosen from data which were collected and measured by Size Korea during two years(
). In order to analyze and compare features of the foot of men and women, analysis was performed about 871 subjects(male: 422, female: 449) on 24 body parts including height, width, thickness, circumference, length and angle. According to the result of factor analysis about measured data, there were seven factors and six factors for men and women respectively. After cluster analysis, data for men and women were commonly divided by three types for utilization of research results. Type 1 and type 3 had wide distribution about men. Type 2 had wide distribution about women. The results of this study can be applied in manufacturing and design of comfortable shoes and socks.
A Study on the Oxygen Saturation Level Changes in the Blood Exposed to the Static Magnetic Field
Jung, Yong-Chul ; Lee, Dong-Hoon ;
Journal of the Korean Society of Safety , volume 22, issue 6, 2007, Pages 87~90
The effects of static magnetic field on the human biological system are becoming increasingly more important with the adaption of static magnet in the medical community. It is the goal of this paper to review the effects of static magnetic fields on oxygen saturation level in blood. The results of this paper show that the oxygen saturation level increased in the blood in index finger when the static magnetic dipole was fitted on index finger.
An Empirical Review of Korean Perception for Technological Risks
Chung, Ik-Jae ;
Journal of the Korean Society of Safety , volume 22, issue 6, 2007, Pages 91~97
A survey of risk perception in Korea was conducted in 2001 with a special emphasis on industrial and technological risks. This article summarizes the characteristics of risk perception in consideration of socio-demographic background of respondents. The survey with sample size of 1,870 evaluates the perceived level of 25 risk items in the areas of transportation, chemicals, environment, industry, and nuclear power generation. Risks are categorized by using factor analysis to clarify attitudinal or behavioral properties of risk perception. Research findings show that the level of perceived risk does not correspond to the statistical level. Socio-demographic variables are significant predictors in explaining risk perception, or the discrepancies between "subjective" and "objective" risks. Effective risk communication can reduce the perceptional discrepancies, improve the awareness of technological risks, and ultimately facilitate the process of making and implementing policies for risk management and safety regulation. This article tries to provides policy guidelines for "Who is the target for risk communication" and "Which risk has the policy priority for safety improvement." Married females at the age of 30s and 40s with lower education and lower income in small cities are more vulnerable to risk misperception than other groups. More information and knowledge regarding unfamiliar, intangible, new technological risks should be delivered to the vulnerable groups for reducing perceptional bias. Society-wide safety can be improved by integrating policy, human, and social factors as well as techno-engineering advances.