Vibration testing of the head expander has been carried out. This test aims to determine the dynamic characteristics of the head expander that used in the Laboratory of Temperature and Vibration Testing, The Aeronautics Technology-LAPAN. The Head expander is used as a testing tool for the needs of large specimens. Validation of the head expander through this experimental method aims to determine the level of homogeneity of the head expanders. Retrieval of data using 4 accelerometers that are placed at each end of the head expanders. Sine sweep vibrations are given from 5 Hz to 2000 Hz with a constant amplitude of 1g and a sweep rate of 1 octave/minute. The test results show that the ends of the head expander have homogeneous properties with natural frequency values that do not differ much. Resonance occurs at a frequency of 900 Hz, 1300 Hz, 1600 Hz and 1900 Hz. The largest amplitude value at 11,76 g occurs at a frequency of 1900 Hz, so this head expander cannot be used for tests above 1900 Hz. Keywords Head expander; Test fixture; Natural frequency; Vibration; Accelerometer References E. De Barros and C. D. A. Souto, “Evaluation of a vibration text fixture,” Int. J. Acoust. Vib., 2017. H. S. Jeong and J. R. Cho, “Optimal design of head expander for a lightweight and high frequency vibration shaker,” Int. J. Precis. Eng. Manuf., 2016. S. Fábry and M. Češkovič, “Aircraft gas turbine engine vibration diagnostics,” MAD - Mag. Aviat. Dev., vol. 5, pp. 24–28, 2017. S. Kumar, N. Kumar, and R. Kumar, “Vibration Mapping of Head Expander for 9000 Kgf Shaker,” J. Emerg. Technol. Innov. Res., vol. 6, no. 6, pp. 280–284, 2019. A. Y. Zverev, “Noise control mechanisms of inside aircraft,” Acoust. Phys., vol. 62, no. No.4, pp. 478–482, 2016. H. Luo, C. Yu, T. Wu, and H. Wang, “Structure design and dynamic characteristic analysis of vibration fixture,” in Proceedings of 2018 IEEE International Conference on Mechatronics and Automation, ICMA 2018, 2018. W. X. Shen, W. S. Ma, and L. W. Zhang, “Research on the design of fixture for motor vibration test,” in IOP Conference Series: Materials Science and Engineering, 2018. Bruel&Kjaer, “Vibration Testing,” Denmark. E. Solution, Operating and Maintenance Manual (Medium Force Series). China, 2019. A. Parkinson, R. Armsond, D. Cooknell, J. Dixon, M. Keith, and R. Morgan, “Engineering Mechanics : Solids,” in Technology a second level course, 1.1., Yorkshire,: H. Charlesworth of Huddersfield, 1990, pp. 24–30. J. Dewanto, “Kajian Teoritik Sistem Peredam Getaran Satu Derajat Kebebasan,” J. Tek. Mesin, vol. 1, no. 2, pp. 156–162, 1999. http://dx.doi.org/10.28989/angkasa.v12i2.773 Refbacks There are currently no refbacks.