Professor Oh Hyun-woong of Chosun University Co-Develops Korea's First Satellite Vibration Reduction Device Technology

Appearance of four vibration reduction devices. Photo by Chosun University.

[Asia Economy Honam Reporting Headquarters, Reporter Cho Hyung-joo] Professor Oh Hyun-woong of the Department of Smart Mobile Convergence Systems Engineering at Chosun University and doctoral student Park Yeon-hyuk, in collaboration with Hanwha Systems and the Korea Aerospace Research Institute, have developed Korea’s first vibration reduction device, a core component of satellites, contributing to an export contract with Germany’s OHB, an advanced country in space development.

According to Chosun University on the 20th, the vibration reduction device jointly developed by Professor Oh Hyun-woong, Hanwha Systems, and the Korea Aerospace Research Institute efficiently reduces vibrations generated in the infrared sensor cooling system, enhancing the pointing performance of high-resolution observation satellites and enabling the extraction of high-resolution images.

Satellites are exposed to various vibration environments during orbital mission operations, which affect the image quality of Earth observation satellites. Therefore, vibration reduction devices are applied as essential core technology to acquire high-resolution image information.

The vibration reduction device to be supplied to the German satellite system company OHB System AG, with which the export contract was signed, was developed to reduce micro-vibrations occurring in orbits with different vibration magnitudes and to respond efficiently to vibrations generated during satellite launch.

The device was developed through industry-academia-research collaboration with the Korea Aerospace Research Institute, leading to tangible research outcomes such as the delivery of domestically developed flight models for satellites and overseas exports. This is regarded as a representative exemplary case of industry-academia-research cooperation.

Professor Oh Hyun-woong said, “With the recent increase in demand for high-resolution images due to advancements in satellite technology and the sophistication of missions, standards for the image quality of observation satellites have become stricter, highlighting the importance of vibration reduction devices. As this is a case utilizing Chosun University’s original technology and the first instance of exporting a satellite vibration reduction device developed purely with domestic technology to an advanced space development country overseas, this contract holds great significance.” He added, “I hope this will contribute to the globalization of domestic satellite technology.”

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