• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.11
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• pp.3280-3286
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• 2009

In this paper, we designed and manufactured HD Switch Panel parts with micro-etched pattern. By using CAE analysis, we could predict weld-line positions and the amount of shrinkage during injection molding process. We measured the temperature distribution of the mold surface so that we could optimize the processing conditions such as mold temperature. In order to increase the transcription of micro-etched pattern, we applied the E-Mold technology and evaluated the effect of mold temperature on the surface quality. We concluded that the etched pattern was improved(more than 2.5$\to$1.5~1.7) through the measurement of surface gloss and the observation of both SEM and SPM images.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2003.05a
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• pp.112-116
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• 2003

The aim of this study is to extract the design vocabulary of flexibility from analyzing Steven Holl' architectural works. For this purpose, the four works were selected and the design elements like their concepts, elevations, plans, furnitures, lights, materials, and colors were analyzed. The results of this study are as follows ; First, flexible design method is shown in adaptable space planning by using system of hinged panel and multi-functional furniture of various form. Second, Windows were made a plan of the geometric partition of surface and with clear materials for expanding space to outside. Third, the changing of level and the using of the phenomenological elements like a light color, water, and materials were applied for enhancing the image of the flexible space.

• Korean Institute of Interior Design Journal
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• no.2
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• pp.46-53
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• 1994

The Soubise Mansin which construction ended in the latter half of 1730s has several rooms which symbolize Rococo which appeared in the 18 century. The work of the Soubis Mansion done by an architect, Boffrand , is a significant work in which he had introduced a new style of building , Rococo, based on a style of Regency, thereby showing a big leaf in that kind of art. In other words, with the elements already established in the days of Regency-white wood panel, gold molding, mirror technique, etc. -and the characteristics of unprecedent, outstanding spatial forms and Rococo decoration introduced. Rococo had enjoyed its peak of full flourish within the moderation of being never excessively magnificent, beautiful, and dignified. It is a remarkable thing that a model of such perfect ideal beauty was suggested even in the begining state of Rococo and it is deemed that such a point resulted in such influence on other places like the Versalilles Palace, etc.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2004.05a
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• pp.112-115
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• 2004

The government is in progress the traditional retail market redevelopment and remodeling due to atrophy of the traditional retail market in accordant to opening of the circulation market and changing of the consuming patterns. However, it seemed that primitive project was limited to the environment improvement scope. As the shopping environment which is comfortable to the consumers is provided and the design which considers a traditional retail market specific quality is applied from business plan early. It will be useful for the management normalization of traditional retail market actually. The spatial factors were analyzed as follows. 1. The circulation of consumer should be secured to make boundary line of the pass way. 2. The display booth should be standardized for the security of sight. 3. The signage panel should be consolidated in according to the plan. 4. The street vendor's handcart and tent should be arranged for circulations and the vision line.

• Transactions of the Korean Society of Automotive Engineers
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• v.5 no.1
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• pp.120-128
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• 1997

The variations of the temperature field in a passenger compartment were measured by using a HSI true color image processing system and TLC(Thermochromic Liquid Crystal) solution. This temperature measurement technique was proved to be useful for analyzing the ventilation flow. The flow field in the passenger compartment was visualized using a particle streak method with pulsed laser light sheet. The temperature field and flow field in the passenger copartment were affected significantly by the ventilation mode. The panel-vent mode heating had shorter elapse time to reach a uniform temperature than the foot-vent mode under the same ventilation condition and nonuniformity inside the passenger compartment could be minimized effectively by using the bilevel heating mode. The temperature increase rate in the rear passenger compartment was iower than the front compartment, especially in the vicinity of the rear seat occupants' knee level.

• Journal of Aerospace System Engineering
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• v.15 no.4
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• pp.30-39
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• 2021

This paper presents a study on the design and structural substantiation of the interior structure of the new VVIP aircraft. In this study, the structural design and analysis of the compartment with aluminum alloy and sandwich composite panel were performed. The structural design requirements from the Federal Aviation Administration were identified. The structural analysis of the compartment was performed by the utilization of the finite element analysis method, for the structural design process. Therefore, the designed cabin compartment secured the structural integrity, and satisfied its certification standards and design requirements via structural analysis.

• Proceedings of the Korean Society For Composite Materials Conference
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• 2001.05a
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• pp.97-101
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• 2001

Composite materials have been applied widely in interior panels of buildings and transport vehicles. Recently good fire performance and weight reduction are key issues in the fields. In the present study we investigated effects of processing parameters on the performance of honeycomb sandwich panels, especially peel strength of the panel and fire performance. The processing parameters considered were types of matrix resin, resin contents, panel cure conditions, and surface painting process conditions. The results showed that the higher resin content provides the better peel strength. Controled cure steps are also needed to obtain good pee] strength. Paint processing parameters including base putty thickness and paint drying conditions and paint thickness are important to obtain good paint adhesion and good fire performance.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 1994.10a
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• pp.288-294
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• 1994

A study of prediction and qualification techniques for structure borne booming noise is presented in this paper. Result from acoustic normal mode finite element analysis of a 1/2 size vehicle cavity sample model is compared to the that from an experiment. Coupled structural-acoustic analysis is performed on a 1/4 size vehicle cavity sample model surrounded by 2 mm thick normal steel plates. Interior noise levels around passensger's ear position are predicted and reduced by structural modification based on panel participation factor analysis about the sample cavity model. Futhermore, optimization technique in application of anti-vibration pad is studied.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2011.10a
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• pp.457-462
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• 2011

The sidewall of the HEMU-400x consists of two parts. One is the multi-layered structure including aluminium extruded panel and the other is the double glazed window. When the train runs in a tunnel, the equivalent sound insulation performance of the side wall significantly influences the internal noise levels. In aspect of the sound insulation strategy, it is important to make two parts have similar performance. In this study, the intensity sound transmission loss (ITL) is measured on the specimens of the two parts. Mass law deviation (MLD) is considered in order to compare the sound insulation performance of the two parts in respect of the weight. Contribution of each part to the sound insulation is analyzed and the sound insulation strategy is investigated to reduce the interior noise.

• Proceedings of the KSR Conference
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• 1999.05a
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• pp.185-191
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• 1999

This paper deals with a method to predict the noise level inside metro electric cars running a single-line tunnel at the speed of 80km per hour using ray tracing method, a kind of ray acoustics generally used for a high-frequency and air-born noise analysis. The interior of the car including a under-frame, seats, side doors, end doors, door-pockets, side panels, end panel, a roof panel and so on is modeled. And in order to describe the noise power coming inside, artificial noise sources are designated using sound transmission loss data of each section measured from simple tests and external noise level. The noise level inside the car is calculated and its properties are investigated. The results satisfy the criteria on noise level inside the car.