Browse > Article
http://dx.doi.org/10.7776/ASK.2020.39.4.342

An overview of acoustic and vibration research activities for the structural development of Korean space launchers  

Park, Soon-Hong (LV Structures Department, Korea Aerospace Research Institute)
Publication Information
The Journal of the Acoustical Society of Korea / v.39, no.4, 2020 , pp. 342-350 More about this Journal
Abstract
Acoustic and vibration research activities for the structural development of Korean space launch vehicles are introduced in this paper. Various dynamic loads exerted on a launch vehicle during its operation are summarized. The acoustical design method of payload fairings which protect satellites from harsh launch environment was reviewed. Several acoustic research activities were performed to enhance the analytical prediction ability during the development period of the Naro and the Nuri launcher. Specifically, the following research activities are reviewed: a test and vibro-acoustic analysis of composite cylinders whose layup properties are varied, a research on low-frequency acoustic load reduction by an acoustic resonator array and an acoustic test on the cylinder part of the Naro payload fairing. A vibro-acoustic analysis result for the Nuri launcher was introduced and predicted acoustic and vibration levels and measured ones are shown to be in a good agreement.
Keywords
Space launcher; Vibro-acoustic analysis; Acoustic protection system; Payload fairing;
Citations & Related Records
연도 인용수 순위
  • Reference
1 H. Himelblau, J. E. Manning, D. L. Kern, A. G. Piersol, and S. Rubin, Dynamic environmental criteria, NASA Tech. Rep., HDBK-7005, 2001.
2 S.-H. Park, S.-H. Seo, J.-H. Han, and C.-W. Gong, "Acoustic and vibration mitigation, test and evaluation technology for space launch vehicle"(in Korean), Current Industrial and Technological Trends in Aerospace, 12, 115-126 (2014).
3 S.-H. Park, C.-W. Kong, Y.-S. Jang, and Y. Y. Moo, "Acoustic loads reduction of composite plates for nose fairing structure" (in Korean), Composite Research, 17, 15-22 (2004).
4 S.-H. Park, J. H. Han, S. H. Suh, and H. W. Jang, "Reduction of acoustic loadings by stacking variation of composite sandwich structures" (in Korean), Proc. KSAS Fall Conf. 1251-1253 (2015).
5 S.-H. Park and S.-H. Seo, "An empirical acoustic impedance model for the design of acoustic resonator with extended neck at a high pressure environment" (in Korean), Trans. Korean Soc. Noise Vib. Eng. 22, 1199-1205 (2012).   DOI
6 S.-H. Park and S.-H. Seo, "Low-frequency noise reduction in an enclosure by using a helmholtz resonator array" (in Korean), Trans. Korean Soc. Noise Vib. Eng. 22, 756-762 (2012).   DOI
7 S.-H. Park, "A design method of micro-perforated panel absorber at high sound pressure environment in launcher fairings," J. Sound Vib. 332, 521-535 (2013).   DOI
8 S.-H. Park, "Acoustic properties of micro-perforated panel absorbers backed by Helmholtz resonators for the improvement of low-frequency sound absorption," J. Sound Vib. 332, 4859-4911 (2013).
9 S.-H. Park, S. H. Suh, and J. H. Han, "Comparison of acoustic test and vibro-acoustic analysis results of a composite cylinder under external acoustic loading" (in Korean), Proc. Proc. KSAS Fall Conf. 1180-1183 (2014).