• Title, Summary, Keyword: Passenger cabin

Search Result 128, Processing Time 0.065 seconds

Acoustic Coupling Between Passenger and Luggage Compartments Through Loudspeaker Holes Using Indirect BEM (스피커 구멍을 통한 차실과 트렁크 공간과의 음향 연성에 대한 간접경계요소해석)

  • 정지훈;이정권
    • Transactions of the Korean Society of Automotive Engineers
    • /
    • v.5 no.3
    • /
    • pp.66-75
    • /
    • 1997
  • Sound transmission from the luggage comparment into the car cabin is important in the viewpoint if exhaust and road noises of passenger cars. In this paper, acoustic modal coupling between passenger and luggage compartments through loudspeaker holes at parcel shelf is dealt with for a sedan type passenger car with rigid rear seat. For these purposes, a half-scaled model car is tested and computed by the indirect BEM. Predicted acoustic transfer functions are compared with experimental ones and they agree reasonably well. It is found that the fore-aft resonance frequencies of the passenger cavity in the absence of coupling holes are tend to shift to higher frequencies when the luggage compartment is coupled to the passenger cavity.

  • PDF

Comfortable leisure space and prevention of vibration for large passenger ship (대형 여객선의 쾌적한 레져공간 확보 및 최적 방진설계)

  • Eom, J.K.;Kwun, H.;Park, J.H.;Han, S.Y.
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
    • /
    • /
    • pp.368-372
    • /
    • 2008
  • Habitability is one of the most important points when a passenger ship is cruising. In particular, anti-vibration design should be considered preferentially to offer passenger a comfort cabin and leisure space. But, a passenger ship is different from a general commercial ship in the view point of the structural arrangement. It is restricted within narrow limits to reinforce wide panels and local structures of a passenger ship because of its interior design. Moreover, the allowable vibratory limits for a passenger ship are much lower than those of a commercial ship. In this study are introduced the procedure of the vibration analysis, the structural improvement method for prevention of vibration and the results of vibration measurement during exciter test and sea trials.

  • PDF

Status of particulate matter pollution in urban railway environments (도시철도 환경의 미세먼지 오염 현황)

  • Kim, Jong Bum;Lee, Seung-Bok;Bae, Gwi-Nam
    • Journal of odor and indoor environment
    • /
    • v.17 no.4
    • /
    • pp.303-314
    • /
    • 2018
  • The urban railway system is a convenient public transportation system, as it carries many people without increasing traffic congestion. However, air quality in urban railway environments is worse than ambient air quality due to the internal location of the source of air pollutants and the isolated space. In this paper, characteristics of particulate matter (PM) pollution in urban railway environments are described from the perspective of diurnal variation, chemical composition and source apportionment of PM. PM concentrations in concourse, platform, passenger cabin, and tunnel are summarized through an analysis of 34 journal articles published in Korea and overseas. This information will be helpful in developing effective policies to reduce PM pollution in urban railway environments.

The Flexibility Design for the passenger cabin of High Speed Train (고속전철 객실 유연성 디자인)

  • Choi, Hyok-Su;Kwan, Yong;Han, Song-Yee;Lee, Byeong-Jong;Chung, Kyung-Ryul
    • Proceedings of the Korea Society of Design Studies Conference
    • /
    • /
    • pp.82-83
    • /
    • 2000
  • G7 고속전철 개발사업의 진행은 고속전철개발 기본 준선 설정의 출발점인 승객에 대한 요구조건들이 간과된 채, 350km/h의ㆍ속도로 주행만을 위한 기술개발로 시작되었다. 그 결과, 승객 910명의 무게 72.8 톤이라는 화물에 대한 운송조건만이 고려되게 되었다. (중략)

  • PDF

Study on the Removal of Carbon Dioxide in Passenger Cabin using Base-Modified Zeolites (염기 처리 제올라이트를 이용한 객실용 이산화탄소 저감방안 연구)

  • Cho, Young-Min;Lee, Ji-Yun;Kwon, Soon-Bark;Park, Duck-Shin;Choi, Jin-Shik;Kim, Hee-Man
    • Proceedings of the KSR Conference
    • /
    • /
    • pp.544-547
    • /
    • 2011
  • Carbon dioxide concentration of railroad passenger cabin is obliged to be kept lower than guideline values of 'Indoor air quality guideline for public transportations', but actual carbon dioxide concentration frequently exceeds this guideline value. Ventilation is most desirable to lower carbon dioxide concentration but there are some cases when the ventilation is not applicable. In this study, carbon dioxide concentration control method using adsorbents was presented. Base and zeolites, good adsorbents of carbon dioxide, were mixed and palletized. Carbon dioxide adsorption performance of this adsorbents were studied. It was found that base-modified zeolites adsorbed carbon dioxide better than zeolites only.

  • PDF

A Study on the Decrease of Pressure in Truck Cabin With Closing Door (도어 닫힘에 따른 차실내압 저감에 관한 연구)

  • Kim N. H.;Rho B. J.;Kim W. T.;Namkung J. W.;Lee S. J.
    • Proceedings of the KSME Conference
    • /
    • /
    • pp.667-670
    • /
    • 2002
  • Vehicle's airtight integrity is a very important factor that greatly affects passenger's habitability. However, when a door is closed, the pressure in the passenger compartment increases due to the vehicle's airtight integrity. That pressurizes the eardrums of the passenger, and makes passenger unpleasant. Thus, in this study, the configurations of air ventilation hasve been investigated to reduce pressure in the passenger compartment. Truck cab is utilized to measure the pressure in the passenger compartment. Various kinds of air ventilations are considered to find out optimized pressure in truck cab when a door is closed.

  • PDF

Development of Multimedia Contents System for Passenger in Train (차량 내 멀티미디어콘텐츠 시스템 구현에 관한 연구)

  • Chang, Duk-Jin;Kang, Song-Hee;Song, Dahl-Ho
    • Proceedings of the KSR Conference
    • /
    • /
    • pp.1563-1571
    • /
    • 2011
  • In the commercial trains, there are monitors hung on the ceiling which simply display broadcasted contents so a passenger in a cabin has only one choice of passively watching them or not. To lead the application of IT in railway, keep a passenger from tedious journey, or help a passenger having a productive time, an MCS(Multimedia Contents System) was analyzed, designed, and implemented. A passenger can select and use a content from a smart terminal that is attached at the passenger's seat. A smart terminal is one that has its own memory and processor to handle informations and interact with a user. In this paper, the contents, such as train schedule, transfer information, traveling information, e-book, TV, music, and game, that the MCS can provide were introduced. To validate the applicability of the MCS on a next generation high-speed train, a testing environment will be set on a pre-production car and tested. The successful installation of the MCS will boost up the competitive power of the next generation train in the world market.

  • PDF

Characteristics of PM10, PM2.5 and CO2 Concentration in Public Transportations and Development of Control Technology (대중교통수단에서 PM10, PM2.5 및 CO2의 농도 현황과 저감기술 개발에 관한 연구)

  • Park, Duck Shin;Kwon, Soon Bark;Cho, Young Min;Jang, Seong Ki;Jeon, Jae Sik;Park, Eun Young
    • Particle and aerosol research
    • /
    • v.6 no.1
    • /
    • pp.9-20
    • /
    • 2010
  • This study examined the concentration level of the major air pollutants in public transportation. The study was conducted between February 2009 and March 2008 at Suwon-Yeosu line in Korea. $PM_{10}$ concentration level was $100{\mu}g/m^3$ on average. The $PM_{2.5}$ to PM10 ratio in transport is 0.37, which was lower than the results published by other researches. The result also demonstrated that outdoor $PM_{10}$ concentration was about 56~60% level compared to that of the cabin. $CO_2$ concentration level in the cabin was 1,359ppm, which does not exceed 2,000ppm, which is the guideline concentration level according to the Ministry of Environment. $CO_2$ concentration level in the cabin was $CO_2=23.4{\times}N+460.2$, and about 23.4ppm in $CO_2$ concentration level increased every time one passenger was added on. The experiment conducted on the train demonstrated that the average $PM_{10}$ concentration level was $100{\mu}g/m^3$ in case of the reference cabin while average $PM_{10}$ concentration level of the modified vehicle was $68{\mu}g/m^3$. Likewise, effect of the particle reduction device for the reduction of $PM_{10}$ concentration level was approximately 21%. Meanwhile there was almost no difference in the concentration level between reference and modified cabin in case of $PM_{2.5}$. Using zeolite as an adsorbent was made to reduce the $CO_2$ concentration level in the cabin. Number of passengers was factored in, to calculate the effect of the adsorption device, which demonstrated that about 36% of $CO_2$ concentration level was reduced in the modified cabin effect of the $CO_2$ reduction device. This research analyzed the current status concerning the quality of air in the public transportation and technologies were developed that reduces major air pollutants.

A Study on the Characteristics of Planning and Design of the passenger's Cabins in Cruise Ships - Focus on the types in the 2004~2010 in Large Cruise Ships - (크루즈 선박 객실 배치 계획 및 디자인 특성에 관한 연구 - 대형톤급 중 8만톤 이상의 크루즈 선박 2004년~2010년형 모델을 중심으로 -)

  • Park, Ah-Reum;Rhee, Youn-He
    • Korean Institute of Interior Design Journal
    • /
    • v.19 no.1
    • /
    • pp.226-235
    • /
    • 2010
  • As marine leisure is getting popular around the world, people's interest in cruise ship is increasing rapidly. Now it became possible to make cruise ship with Korean technology, as a result of continuous research and development. However, as cruise ships are getting bigger and more popular, new cruise interior design is required to satisfy various clients' aesthetic and functional demands. Therefore, more researches for cruise interior design are needed. The purpose of this study is to analyze the characteristics of planning and design of passenger's cabins in cruise ship. The scope of this research is limited to the types in the 2004-2010 in Large Cruise Ships. Method of this study are document study and case study, in particularly, case study is conducted for the specific design methods through case analysis. The results of this study are as follow : One of the transitions in the cruise cabin designs is that cabins with balconies occupy a large portion of the entire cabins. As the functions of these balconies are diversifying, more distinctive forms of balcony are showing up. In particular, the cabins which are connected to public space differentiate themselves from those with the same rates; it meets the demands of the clients who require high quality services. In terms of cabin design, a futuristic, distinctive cabin that has incorporated will be a very important function in determining the value of the cruise ship. Based on the results of this research, application of the rapid changes in cabin design and studies about more diversified and advanced design are required.

Damageability, Repairability of Frame Type Passenger Vehicles at Low Speed 40% Offset Crash Test (저속40%옵셋 충돌시험을 통한 프레임형 승용차량의 손상성수리성에 관한 연구)

  • 박인송;정태용
    • Transactions of the Korean Society of Automotive Engineers
    • /
    • v.11 no.5
    • /
    • pp.127-133
    • /
    • 2003
  • For the purpose of evaluation the damage repairability of a Frame Type Passenger vehicle which experienced a Low Speed 40% Offset front and rear Crash Test. tests were made according to the RCAR testing procedures. Test results concluded ; (1) The deceleration at C.G(center of gravity) off 6.9∼11.39 was similar to that for the vehicle. The airbag system was found to affect neither the passenger's safety nor the savings of the repairing costs. (2) In order to improve the repairability of the Frame Type Passenger vehicle after collision should be a higher crash performance of the bumper on the RCAR standards.