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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of the Korean Society for Aviation and Aeronautics
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Journal DOI :
The Korean Society for Aviation and Aeronautics
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Volume & Issues
Volume 21, Issue 4 - Dec 2013
Volume 21, Issue 3 - Sep 2013
Volume 21, Issue 2 - Jun 2013
Volume 21, Issue 1 - Mar 2013
Selecting the target year
Derivation and Verification of the Relative Dynamics Equations for Aerial Refueling
Jang, Jieun ; Lee, Sangjong ; Ryu, Hyuk ;
Journal of the Korean Society for Aviation and Aeronautics, volume 21, issue 4, 2013, Pages 1~10
DOI : 10.12985/ksaa.2013.21.4.001
This paper addresses the derivation of 6-DOF equation of Tanker and Receiver's aircraft for aerial refueling. The new set of nonlinear equations are derived in terms of the relative translational and rotational motion of receiver aircraft respect to the tanker aircraft body frame. Further the wind effect terms due to the tanker's turbulence are included. The derivation of absolute dynamic equation for tanker aircraft written in the inertial frame is calculated from the relative dynamics equations of receiver. The derived relative and absolute equations are implemented the simulation in the same flight conditions to verify the relative motion and compare the trim results by using the MATLAB/SIMULINK program.
Airworthiness Design Study for the Modified Aircraft
Ko, Joon Soo ;
Journal of the Korean Society for Aviation and Aeronautics, volume 21, issue 4, 2013, Pages 11~16
DOI : 10.12985/ksaa.2013.21.4.011
Airworthiness certification is a repeatable process implemented to verify that a specific aircraft can be safely maintained and operated within its approved flight envelope. Airworthiness certification activity for the FA-50 aircraft has been performed according to the Airworthiness Certification Criteria, issued in 2011 by DAPA. It is a right time to study the application of those existing ACC process and tools to the hypothetical modification aircraft. This paper describes airworthiness engineers view of the integrated activities required to substantiate the modified aircraft performance. The compliance methods applicable to the airworthiness certification criteria is also suggested. It will be useful for the establishment of the future Korea modified military aircraft's ACC with the risk assessment and methods of compliances tailored to the legacy aircraft.
Configuration of Network Based GNSS Correction System for Land Transportation Navigation
Son, Minhyuk ; Son, Eunseong ; Lee, Eunsung ; Heo, Moon-Beom ; Nam, Gi-Wook ;
Journal of the Korean Society for Aviation and Aeronautics, volume 21, issue 4, 2013, Pages 17~26
DOI : 10.12985/ksaa.2013.21.4.017
In this paper, a configuration procedure of a transportation infrastructure system for GNSS based very precise real-time positioning is proposed. This infrastructure system consists of several receiving station, a central station, and communication sub-systems. The required performance, design, implementation and verification of each sub-system are explained respectively. The required performance can be broken down into accuracy, integrity, stability, processing time. The design of the each sub-system is performed in accordance with the required performance and each sub-system is built with regard to the design. Lastly the implemented system is verified in comparison with the required performance.
FMEA and FTA for Reliability Analysis of Hybrid Rocket Motor
Moon, Keun Hwan ; Kim, Dong Seong ; Choi, Joo Ho ; Kim, Jin Kon ;
Journal of the Korean Society for Aviation and Aeronautics, volume 21, issue 4, 2013, Pages 27~33
DOI : 10.12985/ksaa.2013.21.4.027
In this study, the FMEA and FTA for reliability analysis of hybrid rocket motor are performed, that was designed in the Hybrid Rocket Propulsion Laboratory of Korea Aerospace University. In order to carry out these analyses the structure of the hybrid rocket motor is hierarchically divided into 36 parts down to the component level and FMEA is carried out with 72 failure modes. Reliability is assessed based on the FMEA, and the results are used in the FTA to evaluate the overall system reliability. In the FMEA, the relationship between the cause and failure modes, effects and their risk priorities are evaluated qualitatively. 27 failure modes are chosen as those with the critical severity that should be improved with priority. As a result of the FMEA / FTA study, a series of design or material changes are made for the improvement of reliability.
Helicopter Attitude Command Response Type Control System Design using SAS Actuators and Trim Actuators
Kim, Eung Tai ; Choi, Inho ; Hyun, JeongWook ;
Journal of the Korean Society for Aviation and Aeronautics, volume 21, issue 4, 2013, Pages 34~40
DOI : 10.12985/ksaa.2013.21.4.034
Attitude command response type required for enhanced handling qualities of helicopter can be implemented by mechanical automatic flight control system with SAS actuators which have limited authorities. However, the early saturation of SAS actuator hinders the helicopter from following the attitude command for large stick command. Auto-trim controller can delay SAS actuator's saturation by utilizing trim actuators and allows the attitude command response type for larger stick command. This paper describes the control law for limited authority system of helicopter with auto-trim. Limited authority system is applied to BO-105 linear dynamic model and simulation is performed along with handling quality analysis.
A Study on the Measurement of Dynamic Stability Derivatives in the Rolling Motion of Aircraft
Cho, Hwan-Kee ;
Journal of the Korean Society for Aviation and Aeronautics, volume 21, issue 4, 2013, Pages 41~46
DOI : 10.12985/ksaa.2013.21.4.041
This paper deals with an experimental technique for the measurement of dynamic stability derivatives in the roll motion of aircraft. Experimental aquisition method for aircraft's dynamic stability derivatives is conducted on the oscillation condition of aircraft model in the subsonic wind tunnel. The oscillation of aircraft model was forced by the oscillation apparatus. The forced oscillation technique is the method getting data from the internal balance inserted into the aircraft model during oscillating it. Dynamic stability derivatives of rolling motion were calculated by data reduction from the measurements of rolling moment, frequency and amplitude of aircraft model due to forced oscillation under wind conditions. Results of experiment is obtained similar one with those of roll dynamic stability derivatives measured in other institutes.
Warning Signal for Limit Cycle Flutter of 2D Airfoil with Pitch Nonlinearity by Critical Slowing Down
Lim, Joosup ; Lee, Sang-Wook ; Kim, Tae-Uk ;
Journal of the Korean Society for Aviation and Aeronautics, volume 21, issue 4, 2013, Pages 47~52
DOI : 10.12985/ksaa.2013.21.4.047
In this paper, limit cycle flutter induced by Hopf bifurcation is studied with nonlinear system analysis approach and observed for the critical slowing down phenomenon. Considering an attractor of the dynamics of a system, when a small perturbation is applied to the system, the dynamics converge toward the attractor at some rate. The critical slowing down means that this recovery rate approaches zero as a parameter of the system varies and the size of the basin of attraction shrinks to nil. Consequently, in the pre-bifurcation regime, the recovery rates decrease as the system approaches the bifurcation. This phenomenon is one of the features used to forecast bifurcation before they actually occur. Therefore, studying the critical slowing down for limit cycle flutter behavior would have potential applicability for forecasting those types of flutter. Herein, modeling and nonlinear system analysis of the 2D airfoil with torsional nonlinearity have been discussed, followed by observation of the critical slowing down phenomenon.
A Study on Cabin Crew's Perception of Cabin Servicescape to Their Service Performance through Motivation and Direction
Choi, Duk Jin ; Kim, Mun Sun ; Kim, Kee Woong ; Park, Sung Sik ;
Journal of the Korean Society for Aviation and Aeronautics, volume 21, issue 4, 2013, Pages 53~61
DOI : 10.12985/ksaa.2013.21.4.053
In-flight service, depending on the perceptions of service satisfaction because ever turns into a variable, which enables service providers the flexibility of a variable in the end flight service to suit your needs to providing comprehensive and proactive services of the crew will be motivated. In addition, the service provider's motivation to work in a confined space on board the flight service characteristics in-flight service will be a major impact on the environment. This service-oriented environment, in-flight service and motivation in order to verify the impact on services in Cape factors as independent variables and the dependent variable service-oriented multi-regression analysis was performed. As a result, the motivation of the crew and the crew of the service-oriented, with a voluntary service crew services dependent variable parameters that affect the behavior of the acts. Services and service-oriented motivation Cape factors significantly influence both the irradiated while the impact on voluntary service and results verification service aesthetics, cleanliness, and physical service environment, only the voluntary services of the crew a positive effect on that the effects were investigated.
A Study of Optimized Operation for CO
Emission and Aircraft Fuel Reduced Operation Procedures
Hwang, Jeong-Hyun ; Lee, Tae-Gwang ; Hwang, Sa-Sik ;
Journal of the Korean Society for Aviation and Aeronautics, volume 21, issue 4, 2013, Pages 62~70
DOI : 10.12985/ksaa.2013.21.4.062
As the aviation industry looks to the future, fuel saving and
emission reduction play a dominant role in meeting the business challenges presented by global financial uncertainty. The IATA and International Government effort to save fuels, and then save 4 billion gallons of fuel burned, while reducing
emissions by 34 million tons. The various reduction methods adapted airlines and airports. We focused on optimized flight operation procedures for saving fuel and reduction emission cases. IATA and Canada government research reports focused on four methods that Engine Core Washing, Portable Water Management, Single Engine Taxi, APU limit operation. Apply to domestic airlines fuel data, Engine Core washing was saving more than Twenty-four thousand tons
The effect of technology readiness on the usage of Smart Entry Service
Choi, Jin-Ho ; Park, Jin-Woo ;
Journal of the Korean Society for Aviation and Aeronautics, volume 21, issue 4, 2013, Pages 71~76
DOI : 10.12985/ksaa.2013.21.4.071
This paper seeks to investigate the effect of technology readiness on the usage of smart entry service. The questionnaires were distributed to passengers who were experience with smart entry service and structural equation modeling was utilized to analyze the data. The results revealed that optimism had a positive impact on perceived usefulness and insecurity had a negative effect on perceived enjoyment. Perceived ease of use had a positive impact on perceived enjoyment, perceived usefulness and intention to use. In addition, perceived usefulness had a positive impact on intention to use. The results from this paper can be used as basic knowledge for developing the smart entry service activation plan.
A Study on the Air Travel Demand Forecasting using ARIMA-Intervention Model
Kim, Seon Tae ; Kim, Min Su ; Park, Sang Beom ; Lee, Joon Il ;
Journal of the Korean Society for Aviation and Aeronautics, volume 21, issue 4, 2013, Pages 77~89
DOI : 10.12985/ksaa.2013.21.4.077
The purpose of this study is to anticipate the air travel demands over the period of 164 months, from January 1997 to August 2010 using ARIMA-Intervention modeling on the selected sample data. The sample data is composed of the number of the passengers who in the domestic route for Jeju route. In the analysis work of this study, the past events which are assumed to have affected the demands for the air travel routes to Jeju in different periods were used as the intervention variables. The impacts of such variables were reflected in the presupposed demand. The intervention variables used in this study are, respectively, the World Cup event in 2002 (from May to June), 2003 SARS outbreak (from April to May), Tsunami in January 2005, and the influenza outbreak from October to December 2009. The result of the above mentioned analysis revealed that the negative intervention events, like a global outbreak of an epidemic did have negative impact on the air travel demands in a risk aversion by the users of the aviation services. However, in case of the negative intervention events in limited area, where there are possible substituting destinations for the tourists, the impact was positive in terms of the air travel demands for substituting destinations due to the rational expectation of the users as they searched for other options. Also in this study, it was discovered that there is not a binding correlation between a nation wide mega-event, such as the World Cup games in 2002, and the increased air travel demands over a short-term period.
Study on Improving Airport Security to Prevent Air Terrorism
Kim, Kwanho ;
Journal of the Korean Society for Aviation and Aeronautics, volume 21, issue 4, 2013, Pages 90~105
DOI : 10.12985/ksaa.2013.21.4.090
As witnessed in September 11 attacks, air terrorism is often the most effective means to achieve their goals, and thereby requires a sophisticated level of security measures. Moreover, considering the nature of air transportation, the prevention of air terrorism demands a wide range of international cooperation and joint efforts such as timely sharing of information related to air terrorism (such as latest terror techniques and list of terrorists) between nations, International Air Transport Association (IATA) and International Civil Aviation Organization (ICAO) As most air terrorism can be effectively prevented through security and search activities in airports, this study has focused on researching security measures and issues in major airports around the world, along with the potential measures to improve them. To achieve this effect, this paper offers solutions to preventing air terrorism by exploring appropriate responses to various type of air terrorism, deployment of advanced security and search equipment, techniques to identify terrorists, R&D on equipments to physically take down terrorists and systematic improvements on airport security search process.
A Study of Heavy Snow event caused Runway closed
Kim, Young-Chul ;
Journal of the Korean Society for Aviation and Aeronautics, volume 21, issue 4, 2013, Pages 106~111
DOI : 10.12985/ksaa.2013.21.4.106
The heavy snow event occurred on JAN 4, 2010 brought huge disaster such as Gimpo International Airport runway closed, heavy delays of other airport, and property damage of 16 billion won. Though this heavy snow event is involved in the general synoptic scale heavy snow forecast, it recorded too much snow amount and longer duration than expected. To explain this unusual event, we used the conveyor belt theory. By combining the synoptic scale heavy snow forecast and the conveyor belt theory, the characteristics of heavy snow event was well explained.
Study on Choice Attributes for Low-Cost Carriers Using IPA
Park, Young Sik ;
Journal of the Korean Society for Aviation and Aeronautics, volume 21, issue 4, 2013, Pages 112~118
DOI : 10.12985/ksaa.2013.21.4.112
Air travel demand has recently been growing and establishment and operation of low-cost carriers have been increased. Against this backdrop, low-cost carriers need to figure out diversified customer demand for low-cost carriers and ways to maximize marketing efficiency before applying it to the field so that they can attain superiority to large carriers in increased intensified competition. Low-cost carriers need to be differentiated from other carriers for the purpose of improving profits. Toward this end, this study conducted analysis on importance and satisfaction with carrier choice using IPA with regard to low-cost carrier customers. In conclusion, the paper accurately examined advantages and disadvantages of low-cost carriers compared to general carriers based on results of IPA analysis and suggested managerial strategies to enhance competitiveness based on division into four parts including maintenance and enforcement (1st quadrant, Delay compensation, Booking rapidity, Check rapidity, Crew service, refund service, baggage service, punctuality, transit services, airlines images), concentrated improvement (2nd quadrant, price, Convenience of seat), passive administration (3rd quadrant, Boarding service, cabin cleanliness, flight schedule, whether local crew on board, meal service, in-flight entertainment service), and enhanced satisfaction (4th quadrant, duty-free service, Variety of routes), so that practical suggestions could be presented to employees working in the field.
A case study on the Occurrence Category of aircraft accidents and serious incidents in Korea in the 2000's
Choi, Young-Jae ; Ahn, Jae-Hyung ; You, Kyung-In ; Park, Jung-Gown ;
Journal of the Korean Society for Aviation and Aeronautics, volume 21, issue 4, 2013, Pages 119~125
DOI : 10.12985/ksaa.2013.21.4.119
Since year 2001 to the present time, the aircraft accidents and serious incidents in our country have surpassed 150 occurrences. The Boeing has published the statistical summary of commercial jet airplane accidents annually for the past 10 years on the basis of the occurrence categories defined by the CICTT(CAST/ICAO Common Taxonomy Team), and the number of occurrences is in order of loss of control(LOC-I), controlled flight into terrain(CFIT) and runway excursion (RE). Like the NTSB and the EASA, when fatal and non-fatal accidents are aggregated, though fatality rate is low, abnormal runway contact(ARC), system/component failure(SCF-PP/NP), ground handling(RAMP) rank high in the CICTT occurrence categories. With the less occurrence frequency, it is difficult to statistically analyze the aircraft accidents in our country, thus customarily the accidents and the serious incidents on aggregate are consolidated, and the statistical analysis is performed. This study categorizes the accidents and serious incidents to the domestic transportation aircraft in the past 10 years according to the CICTT occurrence categories, that is compared with foreign practices, and the implications have been discussed. From years 2001 through 2010, the accidents to the domestic transportation aircraft occurred in order of system failure(SCF-NP), ARC and power plant failure(SCF-PP), and when the accidents and the serious incidents are consolidated and analyzed, it is verified that a distribution appears similar to the European accident occurrence categories defined from 300 accident occurrence data.
A Study on the Improvement Methods on Cabin Safety Actions in Aircraft Accidents -Focused on Cabin Crew Safety Performances & Passenger Perceptions of Cabin Safety Information -
Yoo, Kyung-In ; Yoo, Kwang-Eui ; Lee, Chun-Ki ;
Journal of the Korean Society for Aviation and Aeronautics, volume 21, issue 4, 2013, Pages 126~136
DOI : 10.12985/ksaa.2013.21.4.126
Aircraft accidents these days, following the mega sizing trend of the aircraft, result in enormous losses of human lives apart from those of property, which cannot be replaced by any means. As most recently, in April 20, 2012, a Boeing 737 passenger plane departed Karachi on an augural flight to Islamabad, Pakistan, crashed close to an express highway on final approach, all 121 passengers and 6 crew members were killed. As such a large number of fatalities have been recorded in aircraft accidents while accident investigation results show that more than 95% of aircraft accidents are now survivable. There are three basic stages in surviving the aircraft accident: surviving the crash impact, the evacuation process and the hostile post evacuation environmental elements. These stages require the cabin crew's expeditious and appropriate actions on the basis of systematic and thorough cabin safety training in order to increase occupants' survivability, along with the passengers' preparedness. In this aspect, this paper examines the issues acting as the impediments to the passenger survival in inflight emergency situations, that are the deficiencies with cabin crew safety training, related performances and the shortcomings in passengers' knowledge on inflight safety information, leading to their inappropriate responses to emergency situations. These issues are analyzed and the root causes are identified, suggesting the resolving countermeasures.