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Zepeng He, Xiangchao Feng, Yeqing Zhu, Zhibo Yu, Zhen Li, Yan Zhang, Yinhang Wang, Pengfei Wang and Liangyu Zhao
In order to support the development of high?precision spacecraft, the current state of the Stewart vibration isolation platform in the field of aerospace micro?vibration was surveyed. First, based on analyses of the causes and characteristics of spacecra...
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Rang-Lin Fan, Pu Wang, Chen Han, Li-Jun Wei, Zi-Jian Liu and Pei-Ju Yuan
With the further development of the automotive industry, the traditional vibration isolation method is difficult to meet the requirements for wide frequency bands under multiple operating conditions, the active control mount (ACM) is gradually paid atten...
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Junhua Wang, Yi Xu, Kaibin Liang, Qisheng Liu, Jiangui Li and Kaipei Liu
With the increase of urban population and electricity demand, in order to provide sufficient power to residents, distribution transformers are getting closer to residential buildings, and are even directly placed on the first floor or the basement of bui...
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Xu Gao, Jiyuan Wei, Jiajing Huo, Zhishuai Wan and Ying Li
An improved re-entrant negative Poisson?s ratio metamaterial based on a combination of 3D printing and machining is proposed. The improved metamaterial exhibits a superior load-carrying and vibration isolation capacity compared to its traditional counter...
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He Ma, Weichao Chi, Caihua Wang and Jia Luo
Vibration isolation mechanisms are usually installed on spacecraft between the vibration sources and the payload to ensure that precision instruments work properly. This paper proposes a novel maglev Stewart platform for vibration isolation in a microgra...
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Yeon-Hyeok Park, Seong-Cheol Kwon, Kyung-Rae Koo and Hyun-Ung Oh
Whole-spacecraft launch-vibration isolation systems are attractive for achieving the goal of better, faster, cheaper, and lighter small satellites by reducing the design-load and vibration-test specifications for on-board components. In this study, a thr...
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Yang Yang, Guang Pan, Shaoping Yin, Ying Yuan and Qiaogao Huang
In order to enhance the vibration isolation effectiveness of an underwater vehicle power plant, and alleviate the mechanical vibration of the outer housing, initially discrete vibration isolators were improved, and three new types of ring vibration isola...
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Yun-Ho Shin, Donggeun Kim, Seho Son, Ji-Wan Ham and Ki-Yong Oh
Vibration isolation with mode decoupling plays a crucial role in the design of an intelligent robotic system. Specifically, a coupled multi-degree-of-freedom (multi-DOF) model accurately predicts responses of system dynamics; hence, it is useful for vibr...
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Leilei Han, Haibin Wei and Fuyu Wang
There is a great potential application of the research findings in the respect of highway subgrade in seasonal frozen regions.
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Xuechao Duan, Jianwei Mi and Ze Zhao
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Evangelos Sapountzakis, Georgios Florakis and Konstantinos Kapasakalis
This paper investigates the implementation of supplemental vibration control systems (VCS) in base isolated (BI) structures, to improve their dynamic performance. More specifically, the aim of the VCS is to reduce the base displacement demand of BI struc...
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Soo-Min Kim, Dae W. Kim and Moon K. Kwak
The membrane-type air spring can be used to suppress lateral vibration of a vibration isolation table. However, compared to voice coil actuators, pneumatic actuators are difficult to use for precise vibration control, because servo valves have nonlinear ...
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Ting Jin, Guohua Kang, Jian Cai, Shaoxia Jia, Jinghua Yang, Xinghua Zhang, Zhenhua Zhang, Long Li and Fangfang Liu
The low-frequency disturbances transmitted by flexible cables are difficult to be attenuated for a novel disturbance-free payload spacecraft, which decreases the payload?s pointing accuracy and stability. In this research, a new spacecraft configuration ...
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Ting Jin, Guohua Kang, Jian Cai, Shaoxia Jia, Jinghua Yang, Xinghua Zhang, Zhenhua Zhang, Long Li and Fangfang Liu
For a novel disturbance-free payload (DFP) spacecraft, it is difficult to isolate the low-frequency disturbances owing to the umbilical cables, which decreases the pointing accuracy and stability of the payload. In this research, an improved DFP spacecra...
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Ugochukwu Ejike Akpudo and Jang-Wook Hur
Despite the increasing digitalization of equipment diagnostic/condition monitoring systems, it remains a challenge to accurately harness discriminant information from multiple sensors with unique spectral (and transient) behaviors. High-precision systems...
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Weichao Chi, He Ma, Caihua Wang and Tianyu Zhao
The Stewart platform, a classical mechanism proposed as the parallel operation apparatus of robots, is widely used for vibration isolation in various fields. In this paper, a design integrating both small attitude control and vibration isolation for high...
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Seong-Cheol Kwon, Ji-Hae Son, Sung-Chan Song, Jin-Han Park, Kyung-Rae Koo and Hyun-Ung Oh
The Small SAR Technology Experimental Project (S-STEP) mission aims to develop a new (space-based 80 kg-class active X-band synthetic aperture radar (SAR)) satellite with a main imaging mode of 1 m resolution stripmap. In the S-STEP mission, to achieve t...
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Cong Hung Nguyen, Cong Minh Ho and Kyoung Kwan Ahn
This research introduces an air spring vibration isolator system (ASVIS) based on a negative-stiffness structure (NSS) to improve the vehicle seat?s vibration isolation performance at low excitation frequencies. The main feature of the ASVIS consists of ...
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Zhiying Zhang, Xin Tian and Xin Ge
The Bouc?Wen nonlinear hysteretic model has many control parameters, which has been widely used in the field of seismic isolation. The isolation layer is the most important part of the isolation system, which can be effectively simulated by the Bouc?Wen ...
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Zhen Qin, Yu-Ting Wu, Aihua Huang, Sung-Ki Lyu and John W. Sutherland
A novel design of a vibration energy absorbing mechanism (VEAM) that is based on multi-physics (magnetic spring, hydraulic system, structural dynamics, etc.) for cable vibration is proposed. The minimum working force of the hydraulic cylinder has been ex...
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