[논문]가동코일형 전자기식 작동기를 결합한 함정 탑재장비용 마운트 개발

신윤호; 문석준; 정우진; 전재진

doi:10.5050/ksnve.2013.23.10.885

초록
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이 연구에서는 함정탑재 장비의 진동으로부터 기인되는 고체음의 저감을 목표로 새로운 형태의 복합형 마운트를 개발하였다. 수동형 마운트와 비접촉식 전자기식 작동기 또는 관성력형 작동기로 구성된 복합형 마운트가 우수한 성능을 보유한다는 선행연구 결과를 바탕으로 이 연구에서 개발된 복합형 마운트는 기존의 검증된 수동형 고무마운트와 전자기식 작동기를 비접촉식으로 결합한 형태이며, 내충격 성능을 고려하여 설계하였다. 먼저 장비로부터 유발된 진동이 외부로 전달되는 성분의 차단에 대해 복합형 마운트의 효과적인 구성요소 배치형식을 제안하였으며, 여러 설계인자를 고려한 초기 설계안을 제시하고, 마운트 설치 시 문제원인이 될 수 있는 내충격 성능을 고려한 최종 설계를 수행하였다. 설계된 복합형 마운트를 제작하고, 실험을 통해 성능을 검토하였다.

Abstract ▼ AI-Helper

In this study, a new hybrid mount with a moving-coil-type electromagnetic actuator is developed to reduce the vibration transmitted from naval shipboard equipment to the ship hull structure. The detailed design of the hybrid mount is determined through several design stages with electromagnetic nume...

In this study, a new hybrid mount with a moving-coil-type electromagnetic actuator is developed to reduce the vibration transmitted from naval shipboard equipment to the ship hull structure. The detailed design of the hybrid mount is determined through several design stages with electromagnetic numerical analysis using Maxwell software. The hybrid mount, which combines a rubber mount with an electromagnetic actuator, has a fail-safe function for shock resistance. The mount is fabricated and tested using a universal testing machine to check the design specifications. Finally, control tests are carried out on the hybrid mount to confirm its performance and applicability.

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가설 설정

In this study, we expect that, based on the characteristics of the passive mount, the change in the static deflection will be less than ±2 mm and the change in the force will be around 20 %.

제안 방법

Based on findings from studies on the dynamic characteristics of a hybrid mount that depend on the mount layout⁽⁶⁾, the placement of the passive element and the actuator was determined by analyzing the amount of noise transmitted to the ground. Consequently, a non-contact parallel-type mount (see Fig.
This paper presents a method of designing, fabricating, and testing a new type of hybrid mount capable of reducing structure-borne noise caused by naval shipboard equipment. The key findings of the study are as follows:
The latter was then excluded from the concept design because its control depends on the weight of the inertial mass. This resulted in the selection of the former as the concept design, which consisted of a rubber mount, which is a passive component, and an electromagnetic actuator. Whereas the rubber mount is responsible for supporting the static load, isolating unwanted vibration at high frequencies, and absorbing shock as a fail-safe device, the electromagnetic actuator is expected to reduce vibrating peaks and enhance the vibration performance at high frequencies.
This study is aimed at developing a hybrid mount with a static load of 250 kg, maximum control force of 120 N, and maximum controlled displacement of ±1 mm.

대상 데이터

The metal used to create a magnetic circuit within the actuator is ferrite chrome steel (SS430), and the permanent magnet is made of sintered neodymium zinc boron (N42H). The coil is of the self-bound type, with a diameter of 1.3 mm (AWG #16).
In fact, the controller only uses signals from the accelerometer installed at the bottom. The controller (dSpace, DS1103)⁽⁹⁾ was intended to control the electromagnetic actuator at the hybrid mount. The control algorithm was implemented using Filtered-X LMS^(10,11) and focused only on single sinusoidal wave vibration.
The hybrid mount presented in this study is based on an existing proven passive rubber mount. Figure 1 shows the cross section of a rubber mount produced in Korea, which is based on a standard mount used by the U.

이론/모형

The control algorithm was implemented using Filtered-X LMS^(10,11) and focused only on single sinusoidal wave vibration. A control algorithm was designed using MATLAB/SIMULINK⁽¹²⁾; the algorithm was used in the dSpace controller to regulate the electromagnetic actuator.
The controller (dSpace, DS1103)⁽⁹⁾ was intended to control the electromagnetic actuator at the hybrid mount. The control algorithm was implemented using Filtered-X LMS^(10,11) and focused only on single sinusoidal wave vibration. A control algorithm was designed using MATLAB/SIMULINK⁽¹²⁾; the algorithm was used in the dSpace controller to regulate the electromagnetic actuator.
3(b) shows that the PM is within the stator. The models were analyzed using Maxwell⁽⁸⁾, which is commercial FEM-based solution software, under the assumption that the coil is wrapped with 300 turns and the air gap is 1 mm. It was found that the requirement for control was fully met.

성능/효과

• A hybrid mount was fabricated based on the design and tested using a hydraulic universal testing machine to determine its performance. The test reveals that the mount is fully compliant with the design specifications at the frequency range of interest. A series of experiments were performed to assess the control performance of the hybrid mount, and the results confirmed its applicability.
It also reveals that the control at the bottom of the mount also contributes to a slight decrease in vibration at the top. These results suggest that the hybrid mount presented in this paper has good applicability.

후속연구

• The performance evaluation of a mount system consisting of four mounts is necessary to determine the exact performance of hybrid mounts. Further research using the mounting system presented in this paper will be conducted.

참고문헌 (12)

Moon, S. J., Jung, H. J., Shin, Y. H., Jang, D. D., Jeong, J. A. and Moon, Y. J., 2011, Development of a Hybrid Mount System Combined Airspring with Piezostack Actuator for Microvibration, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 21, No. 1, pp. 56-65.

원문보기 상세보기
Moon, S. J., Park, S. H., Jeong, J. A., Huh, Y. C., Kim, C. H. and Choi, S. M., 2011, A Study on the Development of a Hybrid Electromagnetic Actuator Against Microvibration, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 21, No. 5, pp. 475-483.

원문보기 상세보기
Kim, H, T., Kim, C. H., Kang, S. B., Moon, S. J. and Lee, G. S., 2013, A Hybrid Structure of Dual Stators and a Pneumatic Spring for Resonance Control in an Air Mount, Journal of Electromagnetic Analysis and Applications, Vol. 5, No. 3, pp. 114-119.

상세보기
Moon, S. J., Kwak, J. S., Chung, J. H., Ji, Y. J., Yoon, J. S., Choi, S. M., Lee, H. Y., Jung, W. J. and Ki, D. J., 2010, A Study on the Hybrid Mount Against Vibration and Shock for Naval Ships, Shock and Vibration, Vol. 17, No. 3, pp. 269-283.

상세보기
Moon, S. J., Choi, S. M., Nguyen, V. Q., Oh, J. S., Choi, S. B., Chung, J. H., Kwon, J. I. and Jung, W. J., 2013, An Inertia-type Hybrid Mount Combining a Rubber Mount and a Piezostack Actuator for Naval Shipboard Equipment, International Journal of Naval Architecture and Ocean Engineering, Vol. 5, No. 1, pp. 62-80.

원문보기 상세보기
Cho, H. Y., Moon, S. J., Shin, Y. H., Jung, W. J. and Won, M. C., 2012, A Comparative Study on the Dynamic Characteristics and Control Performances of Hybrid Mounts According to Element Configuration, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 22, No. 6, pp. 551-558.

원문보기 상세보기
Super Century. [online] Available at: [Accessed April 2013].
ANSYS Maxwell, ANSYS Inc. [online] Available at: [Accessed August 2013].
dSpace System, dSPACE GmbH. [online] Available at: [Accessed August 2013].
Widrow, B. and Stearns, S. D., 1985, Adaptive Signal Processing, Prentice-Hall.
Hakansson, L., Clasesson, I. and Sturesson, P. O., 1998, Adaptive Feedback Control of Machine-Tool Vibration Based on the Filtered-X LMS Algorithm, International Journal of Low Frequency Noise, Vibration and Active Control, Vol. 17, No. 4, pp. 199-213.

상세보기
MATLAB/SIMULINK, The Mathworks, Inc. [online] Available at: [Accessed August 2013].

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가동코일형 전자기식 작동기를 결합한 함정 탑재장비용 마운트 개발
New Mount with Moving-Coil-Type Electromagnetic Actuator for Naval Shipboard Equipment 원문보기

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가동코일형 전자기식 작동기를 결합한 함정 탑재장비용 마운트 개발 New Mount with Moving-Coil-Type Electromagnetic Actuator for Naval Shipboard Equipment 원문보기

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가동코일형 전자기식 작동기를 결합한 함정 탑재장비용 마운트 개발
New Mount with Moving-Coil-Type Electromagnetic Actuator for Naval Shipboard Equipment 원문보기

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