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Open Access ·Peer-reviewed·ISSN (Online): 2169-012X·ISSN (Print): 0972-0502

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Open Access Research Article

Numerical stability analysis of nonlinear differential equations in engineering systems

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pp. 2255–2261Vol. 28Issue 6September 2025DOI: 10.47974/JIM-2367XML
Received:
10 Dec 2024
Published Online:
30 Sep 2025
Article type:
Research Article
Language:
EN
Article no.:
JIM-2367
Pages:
2255–2261

Abstract

Nonlinear differential equations describe the dynamic behaviours of many engineering systems, from mechanical oscillators with nonlinear springs to electrical circuits containing diodes. The safe and accurate simulation of such systems requires understanding both the qualitative stability of equilibrium solutions and the numerical stability of discretization schemes. This paper focuses on a mathematical stability analysis of a damped nonlinear pendulum, a canonical example in mechanical engineering. Challenges arise from the nonlinearity of the governing equations, the presence of multiple equilibrium points and the sensitivity of numerical solutions to step size. The proposed methodology involves deriving equilibrium points, linearizing the system, computing eigenvalues of the Jacobian to assess local stability, and analyzing the stability regions of numerical integration schemes. Results show how damping influences the eigenvalues and thus the asymptotic behaviours of the pendulum, and how explicit time stepping methods impose strict step size restrictions for stable simulation. Outcomes demonstrate that proper selection of integration schemes and parameters ensures accurate long term predictions of nonlinear dynamics.

Keywords

Subject Classifications

65M06

References

[1] G. Y. Kulikov and M. V. Kulikova, “Advanced numerical integration based on Runge–Kutta formulas,” in State Estimation for Nonlinear Continuous–Discrete Stochastic Systems: Numerical Aspects and Implementation Issues, G. Y. Kulikov and M. V. Kulikova, Eds. Cham: Springer International Publishing, pp. 111–225 (2024).
[2] S. H. Nasab, C. A. Pereira, and B. C. Vermeire, “Optimal Runge–Kutta stability polynomials for multidimensional high-order methods,” J. Sci. Comput., vol. 89, no. 1, pp. 11 (2021).
[3] W. Ding, Y. Li, and M. Wei, “Jacobi method for dual quaternion Hermitian eigenvalue problems and applications,” J. Appl. Math. Comput., vol. 70, no. 4, pp. 3749–3766 (2024).
[4] F. Ihssen, F. R. Sattler, and N. Wink, “Numerical RG-time integration of the effective potential: Analysis and benchmark,” Phys. Rev. D, vol. 107, no. 11, pp. 114009 (Jun. 2023).
[5] A.    Mihara, M. Zaks, E. E. N. Macau, and R. O. Medrano-T, “Basin sizes depend on stable eigenvalues in the Kuramoto model,” Phys. Rev. E, vol. 105, no. 5, pp. L052202 (May 2022).
[6] W.H. Tang, W.W. Li, J.H. Zheng, C.Q. Wu, L.X. Wang, Q.L. Wei, Q.H. Wu, “A composite voltage stability index for integrated energy systems based on L-index and the minimum eigenvalue of reduced Jacobian matrix,” Int. J. Electr. Power Energy Syst., vol. 141, pp. 108136 (2022).
[7] S. Kothawade and I. Zellar, “Blockchain-enabled transformation in public administrative services: A comparative analysis of current applications and future potential,” Int. J. Recent Adv. Eng. Technol. (IJRAET), vol. 14, no. 1, pp. 127–128 (Apr. 2025).
[8] R. H. Hilal, N. A. M. Al-Karamy, and S. M. Aljassas, “Derivation of a numerical method for calculating single integrals,” J. Interdiscip. Math., vol. 28, no. 1, pp. 327–338 (2025).
[9] L. Bouzid, N. Lahmar-Ablaoui, and M. H. Maamar, “New 2D numerical integration formula based on the Legendre wavelets,” J. Interdiscip. Math., vol. 26, no. 5, pp. 835–847 (2023).
[10] V. Deshpande, D. Khubalkar, A. Dhablia, M. J. Pasha, D. Dhabliya, and Y. Gandhi, “Enhancing financial transaction security with lightweight cryptographic algorithms,” Journal of Discrete Mathematical Sciences and Cryptography, vol. 27, no. 2-B, pp. 741–751 (2024).
[11] D. Goyal, A. Kumar, Y. Gandhi, and V. Khetani, “Securing wireless sensor networks with novel hybrid lightweight cryptographic protocols,” Journal of Discrete Mathematical Sciences and Cryptography, vol. 27, no. 2-B, pp. 703–714 (2024).

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