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Detecting homoclinic orbits is a key problem in nonlinear dynamical systems, especially in the study of bifurcation and chaos. In this paper, we propose a new method to solve the problem with trajectory optimization. By defining a distance between a saddle point and its near trajectories, the problem becomes a common problem in unconstrained nonlinear optimization to minimize the distance. A subdivision algorithm is also proposed in this paper to improve the integrity of results. By applying the algorithm to the Lorenz system, the Shimizu-Morioka system and the hyperchaotic Lorenz system, we successfully find many homoclinic orbits with the corresponding parameters, which suggests that the method is effective.
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Keywords:
- chaos /
- homoclinic orbits /
- nonlinear system /
- numerical computation
[1] Zhang Q F, Tang X H 2012 Appl. Math. Comput. 218 7164
[2] Li X H, Bi Q S 2012 Acta Phys. Sin. 61 020504 (in Chinese) [李向红, 毕勤胜 2012 61 020504]
[3] Jia B, Gu H G, Li Y Y 2011 Chin. Phys. Lett. 28 090507
[4] Feng J J, Zhang Q C, Wang W 2011 Chin. Phys. B 20 090202
[5] Huan S M, Li Q D, Yang X S 2012 Nonlinear Dyn. 69 1915
[6] Yang X L, Xu W, Sun Z K 2006 Acta Phys. Sin. 55 1678 (in Chinese) [杨晓丽,徐伟, 孙中奎 2006 55 1678]
[7] Li W Y, Zhang Q C, Wang W 2010 Chin. Phys. B 19 060510
[8] Li Q D, Zhou L, Zhou H W 2010 J. Chongqing Univ. Posts and Telecommun. (Natural Science Edition) 22 339 (in Chinese) [李清都, 周丽, 周红伟 2010 重庆邮电大学学报 (自然科学版) 22 339]
[9] Guo K M, Li Q D 2008 J. Chongqing Univ. Posts Telecommun. (Natural Science Edition) 20 221 (in Chinese) [郭克敏, 李清都 2008 重庆邮电大学学报 (自然科学版) 20 221]
[10] Melnikov V 1963 Trans. Moscow Math. Soc. 12 1
[11] Di G H, Xu Y, Xu W, Gu R C 2011 Acta Phys. Sin. 60 020504 (in Chinese) [狄根虎, 许勇, 徐伟, 顾仁财2011 60 020504]
[12] Tian R L, Yang X W, Cao Q J, Wu Q L 2012 Chin. Phys. B 21 020503
[13] Li Q D, Yang X S 2010 Internat. J. Bifur. Chaos Appl. Sci. Engrg. 20 467
[14] Li Q D 2008 Phys. Lett. A 372 2989
[15] Li Q D, Tang S 2013 Acta Phys. Sin. 62 020510 (in Chinese) [李清都, 唐宋2013 62 020510]
[16] El-Dessoky M M,Yassen M T, Aly E S 2012 Appl. Math. Comput. 218 11859
[17] Li J B, Chen F J 2011 Internat. J. Bifur. Chaos Appl. Sci. Engrg. 21 3305
[18] Li X Y, Wang H J 2011 Internat. J. Bifur. Chaos Appl. Sci. Engrg. 21 2695
[19] Li T C, Chen G T, Chen G R 2006 Internat. J. Bifur. Chaos Appl. Sci. Engrg. 16 3035
[20] Chen P, Xiao L 2010 E. J. Qualitative Theory Diff. Equ. 72 1
[21] Lorenz E N 1963 J. Atmosph. Sci. 20 130
[22] Rodríguez-Luis A J, Freire E, Ponce E 1990 Continuation and Bifurcations: Numerical Techniques and Applications (Leuven:Kluwer Academic Publishers) 197
[23] Freire E, Pizarro L, Rodrigeuz-Luis A J 1999 IMA J. Numer. Anal. 19 51
[24] Beyn W J 1990 IMA J. Numer. Anal. 10 379
[25] Friedman M J, Doedel E J 1993 J. Dyn. Different. Equations 5 37
[26] Sandstede B 1997 IMA J. Numer. Anal. 17 437
[27] Bao J H, Yang Q G 2011 Appl. Math.Comput. 217 6526
[28] De Witte V, Govaerts W, Kuznetsov Y A, Friedman M 2012 ACM T. Math. Software 38 34
[29] Lenci S, Rega G 2011 Nonlinear Dyn. 63 83
[30] Tigan G 2010 Appl. Math. Inf. Sci. 4 383
[31] Li Q D, Yang X S 2010 Acta Phys. Sin. 59 1416 (in Chinese) [李清都, 杨晓松 2010 59 1416]
[32] Li H M, Fan Y Y, Sun H Y, Zhang J, Jia M 2012 Acta Phys. Sin. 61 029501 (in Chinese) [李慧敏, 樊养余, 孙恒义, 张菁, 贾蒙 2012 61 029501]
[33] Li Q D, Tan Y L, Yang F Y 2011 Acta Phys. Sin. 60 030206 (in Chinese) [李清都, 谭宇铃, 杨芳艳 2011 60 030206]
[34] Li Q D, Zhou H W, Yang X S 2012 Acta Phys. Sin. 61 040503 (in Chinese) [李清都, 周红伟, 杨晓松 2012 61 040503]
[35] Shimizu T, Morioka N 1980 Phys. Lett. A 76 201
[36] Wang X Y, Wang M J 2007 Acta Phys. Sin. 56 5136 (in Chinese) [王兴元, 王明军 2007 56 5136]
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[1] Zhang Q F, Tang X H 2012 Appl. Math. Comput. 218 7164
[2] Li X H, Bi Q S 2012 Acta Phys. Sin. 61 020504 (in Chinese) [李向红, 毕勤胜 2012 61 020504]
[3] Jia B, Gu H G, Li Y Y 2011 Chin. Phys. Lett. 28 090507
[4] Feng J J, Zhang Q C, Wang W 2011 Chin. Phys. B 20 090202
[5] Huan S M, Li Q D, Yang X S 2012 Nonlinear Dyn. 69 1915
[6] Yang X L, Xu W, Sun Z K 2006 Acta Phys. Sin. 55 1678 (in Chinese) [杨晓丽,徐伟, 孙中奎 2006 55 1678]
[7] Li W Y, Zhang Q C, Wang W 2010 Chin. Phys. B 19 060510
[8] Li Q D, Zhou L, Zhou H W 2010 J. Chongqing Univ. Posts and Telecommun. (Natural Science Edition) 22 339 (in Chinese) [李清都, 周丽, 周红伟 2010 重庆邮电大学学报 (自然科学版) 22 339]
[9] Guo K M, Li Q D 2008 J. Chongqing Univ. Posts Telecommun. (Natural Science Edition) 20 221 (in Chinese) [郭克敏, 李清都 2008 重庆邮电大学学报 (自然科学版) 20 221]
[10] Melnikov V 1963 Trans. Moscow Math. Soc. 12 1
[11] Di G H, Xu Y, Xu W, Gu R C 2011 Acta Phys. Sin. 60 020504 (in Chinese) [狄根虎, 许勇, 徐伟, 顾仁财2011 60 020504]
[12] Tian R L, Yang X W, Cao Q J, Wu Q L 2012 Chin. Phys. B 21 020503
[13] Li Q D, Yang X S 2010 Internat. J. Bifur. Chaos Appl. Sci. Engrg. 20 467
[14] Li Q D 2008 Phys. Lett. A 372 2989
[15] Li Q D, Tang S 2013 Acta Phys. Sin. 62 020510 (in Chinese) [李清都, 唐宋2013 62 020510]
[16] El-Dessoky M M,Yassen M T, Aly E S 2012 Appl. Math. Comput. 218 11859
[17] Li J B, Chen F J 2011 Internat. J. Bifur. Chaos Appl. Sci. Engrg. 21 3305
[18] Li X Y, Wang H J 2011 Internat. J. Bifur. Chaos Appl. Sci. Engrg. 21 2695
[19] Li T C, Chen G T, Chen G R 2006 Internat. J. Bifur. Chaos Appl. Sci. Engrg. 16 3035
[20] Chen P, Xiao L 2010 E. J. Qualitative Theory Diff. Equ. 72 1
[21] Lorenz E N 1963 J. Atmosph. Sci. 20 130
[22] Rodríguez-Luis A J, Freire E, Ponce E 1990 Continuation and Bifurcations: Numerical Techniques and Applications (Leuven:Kluwer Academic Publishers) 197
[23] Freire E, Pizarro L, Rodrigeuz-Luis A J 1999 IMA J. Numer. Anal. 19 51
[24] Beyn W J 1990 IMA J. Numer. Anal. 10 379
[25] Friedman M J, Doedel E J 1993 J. Dyn. Different. Equations 5 37
[26] Sandstede B 1997 IMA J. Numer. Anal. 17 437
[27] Bao J H, Yang Q G 2011 Appl. Math.Comput. 217 6526
[28] De Witte V, Govaerts W, Kuznetsov Y A, Friedman M 2012 ACM T. Math. Software 38 34
[29] Lenci S, Rega G 2011 Nonlinear Dyn. 63 83
[30] Tigan G 2010 Appl. Math. Inf. Sci. 4 383
[31] Li Q D, Yang X S 2010 Acta Phys. Sin. 59 1416 (in Chinese) [李清都, 杨晓松 2010 59 1416]
[32] Li H M, Fan Y Y, Sun H Y, Zhang J, Jia M 2012 Acta Phys. Sin. 61 029501 (in Chinese) [李慧敏, 樊养余, 孙恒义, 张菁, 贾蒙 2012 61 029501]
[33] Li Q D, Tan Y L, Yang F Y 2011 Acta Phys. Sin. 60 030206 (in Chinese) [李清都, 谭宇铃, 杨芳艳 2011 60 030206]
[34] Li Q D, Zhou H W, Yang X S 2012 Acta Phys. Sin. 61 040503 (in Chinese) [李清都, 周红伟, 杨晓松 2012 61 040503]
[35] Shimizu T, Morioka N 1980 Phys. Lett. A 76 201
[36] Wang X Y, Wang M J 2007 Acta Phys. Sin. 56 5136 (in Chinese) [王兴元, 王明军 2007 56 5136]
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