Tu, Ying; Zhao, Liang; Liu, Qi; Ye, Hong-Ling; Luo, Jun An abnormal mode of torsion pendulum and its suppression. (English) Zbl 1123.70329 Phys. Lett., A 331, No. 6, 354-360 (2004). Summary: The numerical solution of nonlinear equations shows that the abnormal mode observed in our torsion pendulum experiments is an intrinsic mode of the pendulum. Further analysis shows that the amplitude of abnormal mode increasing with of swing modes can be suppressed with a magnetic damper effectively. Cited in 1 Document MSC: 70K99 Nonlinear dynamics in mechanics 70-04 Software, source code, etc. for problems pertaining to mechanics of particles and systems Keywords:torsion pendulum; abnormal mode; numerical computation PDFBibTeX XMLCite \textit{Y. Tu} et al., Phys. Lett., A 331, No. 6, 354--360 (2004; Zbl 1123.70329) Full Text: DOI References: [1] Luther, G. G.; Towler, W. R., Phys. Rev. Lett., 48, 121 (1982) [2] Bagley, C. H.; Luther, G. G., Phys. Rev. Lett., 78, 3047 (1997) [3] Luo, J.; Hu, Z. K.; Fu, X. H.; Fan, S. H.; Tang, M. X., Phys. Rev. D, 59, 042001 (1999) [4] Karagioz, O. V.; Izmailov, V. P., Meas. Sci. Technol., 39, 979 (1996) [5] Richman, S. T.; Quinn, T. J.; Speake, C. C.; Davis, R. S., Meas. Sci. Technol., 10, 460 (1999) [6] Gundlach, J. H.; Merkowitz, S. M., Phys. Rev. Lett., 85, 2869 (2000) [7] Quinn, T. J.; Speake, C. C.; Richman, S. J.; Davis, R. S.; Picard, A., Phys. Rev. Lett., 87, 111101 (2001) [8] Gundlach, J. H.; Smith, G. L.; Adelberger, E. G.; Heckel, B. R.; Swanson, H. E., Phys. Rev. Lett., 78, 2523 (1997) [9] Baeßler, S.; Heckel, B. R.; Adelberger, E. G.; Gundlach, J. H.; Schmidt, U.; Swanson, H. E., Phys. Rev. Lett., 83, 3585 (1999) [10] Smith, G. L.; Hoyle, C. D.; Gundlach, J. H.; Adelberger, E. G.; Heckel, B. R.; Swanson, H. E., Phys. Rev. D, 61, 022001 (1999) [11] Ritter, R. C.; Goldblum, C. E.; Ni, W. T.; Gillies, G. T.; Speake, C. C., Phys. Rev. D, 42, 977 (1990) [12] Lamoreaux, S. K., Phys. Rev. Lett., 78, 5 (1997) [13] Luo, J.; Tu, L. C.; Hu, Z. K.; Luan, E. J., Phys. Rev. Lett., 90, 081801 (2003) [14] Lakes, R., Phys. Rev. Lett., 80, 1826 (1998) [15] Hu, Z. K.; Luo, J.; Wang, W. M., Int. J. Mod. Phys. D, 11, 913 (2002) This reference list is based on information provided by the publisher or from digital mathematics libraries. Its items are heuristically matched to zbMATH identifiers and may contain data conversion errors. In some cases that data have been complemented/enhanced by data from zbMATH Open. This attempts to reflect the references listed in the original paper as accurately as possible without claiming completeness or a perfect matching.