• Title/Summary/Keyword: Air Mount

Search Result 65, Processing Time 0.024 seconds

Development of Air-Damping Mount (에어 댐핑 마운트 개발)

  • Kim, Jeong-Hoon;Lee, Dong-Wook;Kim, Jae-San
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
    • /
    • 2009.10a
    • /
    • pp.328-329
    • /
    • 2009
  • Air-Damping Mount is proposed to compromise between performance and weight & cost. The design of Air-Damping Mount was based on the specification from the engine mounting system analysis of a small car. To verify it's feasibility, R&H test was done on the small car and it is proven that Air-Damping Mount shows the performance between hydraulic mount and rubber mount.

  • PDF

A Study of the Development of Air Spring Mount with High Damping Characteristic (감쇠기능을 갖는 에어마운트 개발에 관한 연구)

  • Uhm, Young-Hwan;Maeng, Ju-Won;Kwon, Tae-Chul;Lee, Seong-Choon
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
    • /
    • 2004.11a
    • /
    • pp.188-192
    • /
    • 2004
  • The purpose of this study is to develop an air spring mount that has high damping characteristic. The new type air spring mount has a polyurethane core in the center. By adding the core, the air spring mount shows excellent damping effect and good resistance to lateral force. This study includes both the analytical study and the experimental study of the new type air spring mount.

  • PDF

PZT stack actuator-based hybrid mount system for mitigating micro-vibration of vibration isolation table (제진 테이블의 미진동 저감을 위한 PZT stack 가력기 기반 복합형 마운트 시스템)

  • Moon, Yeong-Jong;Jang, Dong-Doo;Moon, Seok-Jun;Choi, Sang-Min;Jung, Hyung-Jo
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
    • /
    • 2009.10a
    • /
    • pp.292-298
    • /
    • 2009
  • This paper investigates the control performance of the proposed hybrid mount system for vibration isolation table. The hybrid mount system consists of an air spring as a passive device and a PZT stack actuator as an active device in series. The feasibility of the PZT stack actuator as an active actuator was examined through the simple experiments. After that, a series of numerical simulations were carried out to evaluate the control performance of the proposed hybrid mount system. The equations of motion of the table with a set of hybrid mount systems consisting of four devices are derived. The air spring is considered as a 1 spring and 1 dashpot elements, and PID control algorithm is adopted to estimate the control force. The results of the numerical simulations presents that the proposed hybrid mount system could be the promising control system for vibration isolation table.

  • PDF

Design Development of wall mount type air purifier (벽걸이 형식을 도입한 공기청정기 디자인 개발)

  • Han, Il-Woo
    • Archives of design research
    • /
    • v.18 no.3 s.61
    • /
    • pp.219-222
    • /
    • 2005
  • This study is for the design developement of wall mount air purification device used for pleasant and clean resident environment. As more people have the high standard of living, they are interested in the air quality of indoor environment, since it is believed its relationship with human health. Now the social demand of air purifier is increasing. Its market is growing and there are various design products in the market. However, dominant current products are floor-based standing type, it needs much spaces to install for the air inhalation and exhaust. Therefore, this product provides the space-saved design. Its concept comes from existing wall mount type air conditioners. The effect of wall decoration is another merit of this proposal. It has an easy filtering change and cleaning system and a simple operation of multiple functions. This product also has the perfect-matched slim design that is consist of natural curves with rectangle for any indoor spaces.

  • PDF

Development of Pneumatic Active Engine Mount (공압식 능동 엔진 마운트 개발)

  • Choi, Jae-Yong;Lee, Woo-Hyun;Kim, Jeong-Hoon;Lee, Dong-Wook
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
    • /
    • 2008.11a
    • /
    • pp.282-283
    • /
    • 2008
  • According to the development of vehicle technique, the improved NVH performance is required in the vehicle which have the high effectiveness and the high output of the powertrain. This vehicle has to be adapted to active engine mounting system to reduce the vibration in accordance with various vehicle information. The pneumatic active engine mounting system is consist with engine mount, solenoid valve, air tank and control unit totally. The important technique of this system is to reduce the vibration by the air pressure. This paper contains the development process of the pneumatic active engine mounting system and confirm the performance of this system test and vehicle test.

  • PDF

A Study on the Development of a Hybrid Electromagnetic Actuator Against Microvibration (미진동 저감을 위한 복합형 전자기식 작동기의 개발에 대한 연구)

  • Moon, S.J.;Park, S.H.;Jeong, J.A.;Huh, Y.C.;Kim, C.H.;Choi, S.M.
    • Transactions of the Korean Society for Noise and Vibration Engineering
    • /
    • v.21 no.5
    • /
    • pp.475-483
    • /
    • 2011
  • A hybrid electromagnetic actuator with an air mount is designed so as to achieve the desired isolation reduce the vibration efficiency on the floor vibration. The performance specification of the hybrid electromagnetic actuator is determined based on the vibration criterion for vibration-sensitive equipment. In the design stage of the electromagnetic actuator, the simple reluctance method is adapted to analyze magnetic circuits. The result is verified by finite element analysis using ANSYS Emag. Finally, in order to confirm the design performance, a dynamic characteristic test is carried out for the prototype of a hybrid electromagnetic actuator.

Sliding Mode Control for Improving Performance of Mount with MR(Magneto-Rheological) Fluid (MR마운트 진동제어 성능 향상을 위한 슬라이딩 모드 제어)

  • Ahn, Young Kong;Kim, Sung-Ha;Jeong, Seok-Kwon
    • Journal of Power System Engineering
    • /
    • v.21 no.4
    • /
    • pp.18-25
    • /
    • 2017
  • This paper deals with vibration control of a small mount with MR(Magneto-Rheological) fluid as a functional fluid mount for precision equipment of automobiles. Damping and stiffness coefficients of the mount with MR fluid are changed by variations of the applied magnetic field strength. We present the robust control scheme, based on a conventional sliding mode control theory, for the design of a stable controller that is capable of vibration control due to various disturbances such as impact and periodic excitations, and is insensitive to dynamic properties of the mount. We got stable controller by using Lyapunov stability theory. The controller is then realized by using a semi-active control condition in simulations. Chattering problem of the sliding mode control is eliminated by saturation function instead of signum function. The sliding mode control with Lyapunov stability theory is superior to passive and Sky-Hook control in performance.

Development of the Air Stick Feeder for Inserting the Relay (릴레이 삽입을 위한 에어 스틱 피더의 개발)

  • Kim, Young-Min;Kim, Chi-Su
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.16 no.2
    • /
    • pp.1398-1402
    • /
    • 2015
  • In surface mount technology, the use of technology implemented using a Chip Mounter relay that is inserted into the junction box, etc. car is increasing. On the other hand, there is a need for technology to reduce the weight of the heavy component of the relay attached to different Stick Tube generally chips. Therefore, rather than existing technology, this study improved the algorithm of the system to provide a mechanical structure using Air to supply greater stability using this the component feeder utilizing the Stick Tube proposed technology. When the equipment installed in the Air Stick Feeder was used, the effectiveness, such as increased production and reduced disposal expense, was improved.

A Study on the Productivity Improvement used by the Air Stick Feeder and the Fiber Sensors in Surface Mount Technology (표면 실장 기술에서의 에어 스틱 피더와 파이버 센서를 이용한 생산성 향상에 관한 연구)

  • Kim, Young-Min;Kim, Chi-Su
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.16 no.3
    • /
    • pp.2146-2150
    • /
    • 2015
  • The surface mount technology is used, as mounting relay using Chip Mounter that is inserted into the junction box, etc. car and small components such as 0402 and 0603 Chip. In this study we developed stick tube for supplying the relay that cause problems as components is heavy and suggested the technology using fiber sensors to eliminate missing insertions or improper insertions because of small components. And we show to result of the experiment how to increased the productivity.