• 제목/요약/키워드: 트랜스미션

검색결과 58건 처리시간 0.019초

유전알고리듬을 이용한 오토 트랜스미션 레버의 최적설계 (Optimal Design of Auto Transmission Lever using Genetic Algorithm)

  • 서광규
    • 한국산학기술학회:학술대회논문집
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    • 한국산학기술학회 2003년도 춘계학술발표논문집
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    • pp.140-142
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    • 2003
  • 본 논문은 유전 알고리듬을 이용하여 오토 트랜스미션 레버의 최적 설계 방법론에 대한 연구이다. 현재 업계에서의 오토 트랜스미션 레버는 구성 부품들을 순서적으로 설계하고 있으나, 본 연구에서는 구성 부품들의 설계 파라미터들을 동시에 고려하여 설계할 수 있는 새로운 방법론을 제안한다. 유전 알고리듬 접근방법은 오토 트랜스미션 레버의 설계 파라미터들의 최적 설계 파라미터 집합을 결정하기 위해 적용된다. 본 연구에서는 오토 트랜스미션 레버의 구성 부품들로 구성된 제약조건하에 디덴트 스프링의 각의 변위를 최소화하는 목적함수를 가지는 설계 문제를 모델링하였고, 유전 알고리듬을 적용하여 최적 설계를 수행하였다.

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트랜스미션 컨트롤 케이블의 진동 해석을 위한 모델링 (Modeling of a Transmission Control Cable for Vibration Analysis)

  • 이병수;최해운
    • 한국소음진동공학회논문집
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    • 제18권5호
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    • pp.550-557
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    • 2008
  • A transmission control cable connects the transmission control arm and the control lever mechanically and transfers control effort exerted by a driver to the transmission. It also transfers vibration generated by the engine to the passenger room through mechanical connection. To understand vibration and noise transfer mechanism and to further find a way to suppress the transmission of vibration effectively, a dependable dynamic vibration model is a necessity. A vibration model for a transmission control cable is developed and a simulation study has been conducted to obtain mode frequencies and a transmittability. The resonance frequencies obtained by an harmonic analysis is compared with the noise level measurement data. The measurement agrees with the simulation result thus ensures the reliability of the model.

세탁기용 트랜스미션을 모델로 한 기계 시스템 설계이론에 관한 연구 (A Study on the Design Theory of a Mechanical System : Using a Washing Machine Transmission as a Model)

  • 천길정;김완두;한동철
    • 대한기계학회논문집A
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    • 제20권2호
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    • pp.431-439
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    • 1996
  • 본 연구에서 탐구된 새로운 설계조건과 설계원칙들을 적용함으로써 세탁기용 트랜스미션으로 대표되는 기계 시스템을 효과적으로 설계할 수 있었다. 개발된 자동설계 프로그램을 이용함으로써 다양한 설계시뮬레이션을 단기간에 수행할 수 있었으며 설계 실무자로 하여금 설계변수와 상태변수 등에 관한 민감도를 파악하게 하는데 매우 효과적이었다. 본 연구에서 새롭게 제안된 시스템 설계조건들과 설계원치기들은 세탁기용 트랜스미션 뿐만 아닌 일반적인 기계시스템 설계시에도 적용될 수 있는 것으로 판단된다.

자동차 트랜스미션 기어의 손상과정 평가 (Damage Process Appraisal of Gears in Automobile Transmission)

  • 배효준;조연상;이충엽;서영백;박흥식
    • 한국윤활학회:학술대회논문집
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    • 한국윤활학회 1999년도 제29회 춘계학술대회
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    • pp.272-278
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    • 1999
  • It is the effective method to diagnosis damage process of gear system such as automobile transmission to observe wear particle in gear oil. We tested with new transmission and took out gear oil according to drive distance. 4 shape parameters of wear particles in gear oil were calculated and wear volume were presumed with the image processing system. To be applied to damage diagnosis of gear system in transmission of automobile, we discuss number of wear particles, shape characteristics and total wear volume according to driving distance.

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적절한 헬기 트랜스미션 내구도 시험절차 연구 (A Study on Proper Procedure for Helicopter Transmission Endurance Test)

  • 이상목;황정선
    • 한국군사과학기술학회지
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    • 제16권6호
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    • pp.771-778
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    • 2013
  • Transmission is a core component of helicopter to transmit power from engine to rotor and must have a endurance to be able to show satisfactorily its performance required during its life time. When developing a new helicopter, both military and civil airworthiness authorities require a tie-down test to verify its endurance. Procedure for transmission endurance test is described in FAR part 29 or US military specification but its details are more or less ambiguous. In this paper, we have proposed a proper procedure for transmission endurance test by giving KUH transmission endurance test example including determination of applicable torque, load and test profile.

무인헬기 트랜스미션의 경량화 설계 (A light weight design of the transmission of unmanned helicopter)

  • 여홍태;한재섭;이효영;허관도
    • 한국소성가공학회:학술대회논문집
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    • 한국소성가공학회 2008년도 춘계학술대회 논문집
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    • pp.551-554
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    • 2008
  • In the recent year, Unmanned helicopters of airline industries are using in various industries such as monitoring system, agriculture and forest fire. A unmanned helicopter is needed a powerful engine for transport weighty payload and have to need a light weight. Therefore it is necessary a light weight transmission of the unmanned helicopter. Initially a rectangular transmission housing has been considered, but an empty space in the housing is not useful for light weight design. In this study, new model has been introduced into the transmission housing by using rapid prototyping. As a result, the weight of new transmission housing can be reduced very much as 67%.

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유압 트랜스미션의 본드선도 모델링 및 시뮬레이션 (Computer Aided Bondgraphs Modeling and Simulation of Hydrostatic Transmission)

  • 우성우;박래석;이종길
    • 한국정밀공학회지
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    • 제13권12호
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    • pp.54-62
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    • 1996
  • To get the time response characteristics of the hydrostatic transmission, seaborne winch is modelde by using bond graphs. After modeling of its basic elements, it is represented as power flow, and the determination of variable causality. The state equations are derived by using CAMP. As dynamic stabilites and solutions are investigated by perturbation method and direct integration, winch system is stable. Simulations are performed under the conditions of low speed, high speed, and maximum tension. The pressure and flow rate of the hydrostatic transmission have a big overshoot. But when it is comparaed to the empirical data with simulation results, it is similar to each other. When a lead compensator is applied to improve response characteristics of the hydrostatic transmission, rise time and overshoot of the system are improved.

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지능이론을 이용한 자동차 트랜스미션 소재의 마찰조건 판정 (Decision of Friction Condition for Materials of Automobile Transmission by Theory of Intelligence)

  • 조연상;김영희;박흥식
    • 한국윤활학회:학술대회논문집
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    • 한국윤활학회 2004년도 학술대회지
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    • pp.312-315
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    • 2004
  • A lubricated state of an automobile transmission can not be inspected directly with eyes. Thus, it needs to develop a more general method. Wear debris can be collected from the lubricants of operating transmission of an automobile and its morphology is directly related to the fiction condition of the interacting materials from which the wear particles originated in lubricated transmission. In this paper, to identify the friction condition for transmission gear by neural network, the wear test of ball-on-disk type and the analysis of friction state were carried out for carburized SCM420 and nitrocarburized NT100 under different experimental conditions. The four shape parameters($50\%$ volumetric diameter, aspect, roundness and reflectivity) of wear debris were calculated by the image processing system. They were used as input values to identify the moving condition of transmission gear by the neural network.

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