• Title/Summary/Keyword: control vibration

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Study on Rubber Damping Characteristics of Vibration Reduction Mounts for UAVs (무인기용 진동 저감 마운트의 고무 감쇠 특성에 대한 연구)

  • Chan-Whi Kang;Hun-Suh Park;Dong-Gi Kwag
    • The Journal of the Convergence on Culture Technology
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    • v.9 no.6
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    • pp.927-933
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    • 2023

  • In modern times, with advances in semiconductor technology such as electronic devices, the need to improve the quality of onboard equipment with advanced electronic parts in automobiles, drones, airplanes, projectiles, and various fields, and reduce the impact of various disturbances on onboard equipment is becoming more important. Vibration control through hardware must be determined to prevent damage and improve quality to equipment operating in various environments such as automobiles, drones, airplanes, and projectiles. This study focuses on the study of vibration damping systems to protect mounted equipment from various disturbances and improve stability. Dynamic characteristics analysis, including compressive stiffness, damping rate, and frequency response, and vibration characteristics in the frequency domain of rubber dampers were identified through FEM analysis to identify the characteristics of rubber dampers. Through these findings, we would like to present the criteria for selecting a suitable rubber damper under various disturbance conditions.

  • https://doi.org/10.17703/JCCT.2023.9.6.927 인용 PDF

Suboptimal control strategy in structural control implementation

  • Xu, J.Y.;Li, Q.S.;Li, G.Q.;Wu, J.R.;Tang, J.
    • Structural Engineering and Mechanics
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    • v.19 no.1
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    • pp.107-121
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    • 2005

  • The suboptimal control rule is introduced in structural control implementation as an alternative over the optimal control because the optimal control may require large amount of processing time when applied to complex structural control problems. It is well known that any time delay in structural control implementation will cause un-synchronized application of the control forces, which not only reduce the effectiveness of an active control system, but also cause instability of the control system. The effect of time delay on the displacement and acceleration responses of building structures is studied when the suboptimal control rule is adopted. Two examples are given to show the effectiveness of the suboptimal control rule. It is shown through the examples that the present method is easy in implementation and high in efficiency and it can significantly reduce the time delay in structural control implementation without significant loss of performance.

  • https://doi.org/10.12989/sem.2005.19.1.107 인용 KSCI

Base Isolation and Vibration Control System (진동 방지 및 제어)

  • 조순호
    • Computational Structural Engineering
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    • v.5 no.4
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    • pp.29-40
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    • 1992

  • 본 기사는 진동방지 및 제어기술의 중요성을 인식하고 이에 수반되는 동역학적 이론 및 기술에 대한 최근 연구 실적과 동향, 그리고 특히 건물에 적용예가 많은 일본의 진동방지 및 제어 장치들을 중심으로 실제 상업제품으로 완성된 것들의 특성을 조사하며, 또한 이의 구조해석을 위해 각종 형태별 진동방지 장치의 해석모델 및 경험론적으로 제시하고 있는 설계지침에 대하여 알아보고자 한다.

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Application of Active Control Schemes to Vibration Isolator Design (방진설계에 있어서 능동제어기법의 활용)

  • 박영필
    • Journal of the KSME
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    • v.34 no.10
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    • pp.756-763
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    • 1994

  • 방진설계에 있어서 능동제어의 활용은 다음과 같은 사항을 염두에 두어야 한다. 1)제어대상에 대한 이해 2)제어목적의 선정 3)제어이온의 선정 4)능동직동기의 선정 및 개발 5)능동제어계의 구성 이상과 같은 과정을 통하여 능동제어계를 구성함으로써, 방진설계에 대한 능동제어를 실현하게 된다. 이 단계에서는 실상황에서의 적용 또한 아울러 검토되어야 한다.

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