# Strength Analysis of Flat Spring of the Resonant Vibro-Impact Module

<- Back to II. Mechanical Engineering & Physics Vol. 5

Cite the paper

Volodymyr Gursky & Igor Kuzio (2016). Strength Analysis of Flat Spring of the Resonant Vibro-Impact Module. Mechanics, Materials Science & Engineering, Vol 5. doi:10.13140/RG.2.1.2504.0240

Authors: Volodymyr Gursky, Igor Kuzio

ABSTRACT. The rod model of the resonant vibro-impact module with an electromagnetic drive is considered. Construction’s design implemented an asymmetrical elastic characteristic by one flat spring with two absolutely rigid intermediate supports. Eigenfrequency is defined for corresponding location intermediate supports based on the finite element method. Stress-strain state of the elastic element is graphically represented at the expense of static displacement of local mass. Contact task is considered and contact force between the flat spring and cylindrical support is calculated. Also, contact stiffness is determinate. The parameters of volumetric stress state of the contact, calculated analytically and by modeling in SolidWorks Simulation are shown. The dynamics of the vibro-impact rod system with kinematic’s disturbance is modeled. Contact and equivalent stresses during operation of the vibro-impact rod system are determined.

Keywords: flat spring, vibro-impact, resonance, finite element method (FEM), eigenfrequencies, contact stress

DOI 10.13140/RG.2.1.2504.0240

References

[1] Yoon, J. Y., & Kim, B. (2015). Vibro-Impact Energy Analysis of a Geared System with Piecewise-Type Nonlinearities Using Various Parameter Values. Energies, 8(8), 8924-8944.

[2] Chu, S., Cao, D., Sun, S., Pan, J., & Wang, L. (2013). Impact vibration characteristics of a shrouded blade with asymmetric gaps under wake flow excitations. Nonlinear Dynamics, 72(3), 539-554.

[3] Patent USSR № 1351696 А, B 06 B 1/14 (1987), Method to tune to resonance oscillations of the vibratory machine with piecewise-linear characteristics of the elastic ties, in Russian

[4] Patent USSR № 1727928 А1, B 06 B 1/14 (1992), Method the settings for a given mode of oscillation of the vibratory mathice with nonlinear elastic connections and operating mass, in Russian.

[5] Patent USSR № 1634335 А2, B 06 B 1/14 (1991), Vibratory device, in Russian.

[6] Patent USSR № 1381282 А1, F 16 F 13/00 (1988), Eastic suspension, in Russian.

[7] Peter, Simon, Pascal Reuss, and Lothar Gaul. (2014), Identification of Sub-and Higher Harmonic Vibrations in Vibro-Impact Systems. Nonlinear Dynamics, Volume 2. Springer International Publishing, 131-140.

[8] Belovodskiy V. N., Bukin S. L., Sukhorukov M. Y., Babakina A. A. (2015), 2:1 Superharmonic Resonance in Two-Masses Vibrating Machine // Journal of Vibration Engineering & Technologies, 3(2), 123-135.

[9] Ostasevicius, V., Gaidys, R., & Dauksevicius, R. (2009), Numerical analysis of dynamic effects of a nonlinear vibro-impact process for enhancing the reliability of contact-type MEMS devices. Sensors, 9(12), 10201-10216.

[10] Bazrafshan, M., Ahmadian, H., & Jalali, H. (2014). Modeling the interaction between contact mechanisms in normal and tangential directions. International Journal of Non-Linear Mechanics, 58, 111-119.

[11] Serweta, W., Okolewski, A., Blazejczyk-Okolewska, B., Czolczynski, K., & Kapitaniak, T. (2014). Lyapunov exponents of impact oscillators with Hertz ׳ s and Newton ׳ s contact models. International Journal of Mechanical Sciences, 89, 194-206.

[12] Fayyad, S. M. (2013). Analysis and Simulation of Contact Stresses of Convex Punch Analysis, IOSR Journal of Engineering, Vol. 3, Issue 12, 59-67.

[13] David, V. Hutton. (2004), Fundamentals of finite element analysis. Editorial McGraw− Hill, USA.

[14] Shigley, Joseph Edward. (2011), Shigley’s mechanical engineering design. Tata McGraw-Hill Education.

[15] G.S. Pisarenko, A.P. Yakovlev, V.V. Matveev. (1988), Hand book on Strength of Materials, Naukova Dumka, Kiev, in Russian.