• Title/Summary/Keyword: Hybrid Mount

Search Result 76, Processing Time 0.025 seconds

The Design of a Hybrid Composite Strut Tower for Improving Impact Resistance and Light-weight (내충격성 향상 및 경량화를 위한 하이브리드 복합재료 스트럿 타워 설계)

  • Lee, Hyun Chul;Oh, Hyun Ju;Kim, Seong Su
    • Composites Research
    • /
    • v.26 no.4
    • /
    • pp.223-229
    • /
    • 2013

  • Hybrid composite strut tower was designed to prevent permanent deformation of upper mount by the impact from the uneven road. When exceeding energy absorption capacity of tire and suspension systems, residual impact is delivered to upper mount. Especially, in case of using high-rigidity suspension system for high driving performance, the conventional strut tower can be easily deformed due to reduction of energy absorption capacity of suspension systems. In this study, optimal design of hybrid composite strut tower which made of back-up metal and carbon fiber reinforced composite was suggested by using finite element analysis, and low velocity impact test was performed to investigate their dynamic characteristics. Also, 3D measuring and ultra c-scanning methods were carried out to diagnose damages in the strut towers.

  • https://doi.org/10.7234/composres.2013.26.4.223 인용 PDF KSCI

Modeling and Control of a Four Mount Active Micro-vibration Isolation System

  • Banik, Rahul;Gweon, Dae-Gab
    • Journal of the Semiconductor & Display Technology
    • /
    • v.5 no.4 s.17
    • /
    • pp.41-45
    • /
    • 2006

  • Micro vibration isolation, typically originated from ground, is always a prime concern for the nano-measurement instruments such as Atomic Force Microscopes. A four mount active vibration isolation system is proposed in this paper. Modeling and control of such a four mount system was analyzed. Combined active-passive isolation principle is used for vibration isolation by mounting the instrument on a passively damped isolation system made of Elastomer along with the active stage in parallel that consists of very soft actuation system, the Voice Coil Motor. The active stage works in combination with the passive stage for working as a very low frequency vibration attenuator.

  • PDF

FxLMS Algorithm for Active Vibration Control of Structure By Using Inertial Damper with Displacement Constraint (관성형 능동 댐퍼를 이용한 구조물 진동 제어에서 댐퍼 질량의 변위 제한을 고려한 FxLMS 알고리즘)

  • Kang, Min Sig
    • Journal of the Korea Institute of Military Science and Technology
    • /
    • v.24 no.5
    • /
    • pp.545-557
    • /
    • 2021

  • Engine is the main source of vibration that generates unwanted noise and vibration of vehicle chassis. Especially, in submarine applications, radiation of noise signatures can be detected at some distance away from the submarine using a sonar array. Thus quiet operation is crucial for submarine's survivability. This study addresses reduction of the force transmissibility originating from engines and transmitted to hull through engine mounts. An inertial damper, as an actuator of hybrid mount system, is addressed to reduce even further the level of vibration. Narrow band FxLMS algorithms are broadly used to cancel the vibration of engine mount because of its excellent performance of canceling narrow band noise. However, in real active dampers, the maximum displacement of damper mass is kinematically restricted. When the control input signal from the FxLMS algorithm exceeds this limitation, the damper mass will collide with the mechanical stops and results in many problems. Originated from these, a modified narrow band FxLMS algorithm based on the equalizer technique with the maximum allowable displacement of active damper mass is proposed in this study. Some simulation results showed that the propose algorithm is effective to suppress vibration of engine mount while ensuring given displacement constraint.

  • https://doi.org/10.9766/KIMST.2021.24.5.545 인용 PDF KSCI

A Study on the Analysis of the Shift Characteristics and the Driving Comfort for the Parallel Type hybrid Drivertrain System for Transit Bus equipped AMT (자동화 변속기를 장착한 버스용 병렬형 하이브리드 동력전달계의 변속 특성 해석과 승차감에 관한 연구)

  • 조한상;이장무;박영일
    • Transactions of the Korean Society of Automotive Engineers
    • /
    • v.7 no.7
    • /
    • pp.136-148
    • /
    • 1999

  • Detailed mathematical models of hybrid drivertrain components are presented and numerical simulations are carried out to analyze the shift characteristics and to improve the driving comfortability when the hybrid drivetrain is applied at the vehicle . Theoretical results are compared with experimental ones from the dynamometer as same condition in order to prove the appropriateness of modeling . Adding the vehicle body modeling, included in the suspension and the engine mount, it is possible to predict the dynamic behavior and shift characteristics more actually when shifts are occurred by automated manual transmission(AMT). these additional results are also compared with the same simulation ones of internal combustion engined vehicle equipped conventional manual transmission. Hence, it can be expected that the hybrid vehicle with AMT has a good shift quality.

  • PDF