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Georgia Korompili, Günter Mußbach and Christos Riziotis
In the realm of space exploration, solid rocket motors (SRMs) play a pivotal role due to their reliability and high thrust-to-weight ratio. Serving as boosters in space launch vehicles and employed in military systems, and other critical & emerging a...
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Xingxing Huang, Kang Han, Zhenyu Lu, Shuncheng Zhang and Liang Guo
In order to reduce the influence of temperature deformation of large-size body-mounted radiators on the observation accuracy of space station telescopes and adapt to launch vibration loads, this paper proposes a floating combination stress release mechan...
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Ruliang Lin, Lijing Huang, Zhiwen Liu, Xuehua Zhou and Zhiguo Zhou
Sixty percent of the failures of launch vehicles in the ascending phase occur in the propulsion system. Among them, the vibration generated by the engine is an important factor in the occurrence of failure. At present, health assessment methods in the ae...
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Jae-Hyeon Park, Seong-Keun Jeong and Hyun-Ung Oh
A critical-strain-based methodology was proposed to overcome the theoretical limitations of Steinberg?s method, and its effectiveness was experimentally verified through fatigue tests of ball grid arrays, column grid arrays, and lead-type specimens on pr...
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Kyung-Rae Koo, Hyun-Guk Kim, Dong-Geon Kim, Seong-Cheol Kwon and Hyun-Ung Oh
In the launch environment, satellites are subjected to severe dynamic loads. These dynamic loads in the launch environment can lead to the malfunction of the payload, or to mission failure. In order to improve the structural stability of satellites and e...
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Romil Mishra, Arvind Kumar Mishra and Bhanwar Singh Choudhary
Blasting is a cost-efficient and effective technique that utilizes explosive chemical energy to generate the necessary pressure for rock fragmentation in surface mines. However, a significant portion of this energy is dissipated in undesirable outcomes s...
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Yong Zhao, Qingguang Zhao, Fei Yang, Honghao Yue, Xiaoze Yang and Huaiyu Li
The launch method of one arrow with multiple satellites can greatly shorten the time for constellation networking and improve the deployment efficiency. A new compression and separation device with a four-bar perimeter arrangement is proposed for multi-s...
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Yadong Gao, Xinyu Yu, Likun Chen and Dawei Huang
Accurately identifying the peak value of impact load acting on the helicopter structure during weapon launch is of great significance to the design and finalization of weapon pylons. Firstly, a method of standardized preprocessing load signal is proposed...
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Joon-Hwan Bae, Hyun-Duck Kwak, Sung-Jae Heo, Chang-Ho Choi and Jong-Soo Choi
Floating ring seals are widely used as a leakage control solution for turbomachines because they effectively operate with small clearances between the shaft and seal. The oxidizer pump of the 7 tonf liquid engine in the Korea Space Launch Vehicle II (KSL...
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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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