Experimental investigation of vibrational-damping properties of a viscoelastic material

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Abstract

In this work vibrational-damping properties of a viscoelastic material of a Russian vibration absorber coating named склг-27м is investigated. For this purpose ASTM E756-05 standard is employed and corresponding experimental tests are performed step by step. This standard test method is useful to obtain vibrational-damping properties of materials and can makes it possible to apply viscoelastic material in passive vibration control applications in a beneficial manner. Since the investigated vibration absorber coating is of type of constrained layer damping or CLD, a sandwich specimen is fabricated according to the standard instructions. Then by performing experimental modal testing on the sandwich specimen and base steel beams as cantilever beams, the desired outputs including variations in loss factor and shear modulus of the viscoelastic material versus frequency are obtained. Also the accuracy of conducted tests are checked out using the standard criteria which the outcomes confirm the validity of tests and results.

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[1] Nashif AD, Jones DIG, Henderson JP (1985) Vibration damping. John Wiley & Sons, New York.
[2] Lima AMG, Rade DA, Lépore-Neto FP (2009) An efficient modeling methodology of structural systems containing viscoelastic dampers based on frequency response function substructuring. Mech Syst Signal Pr 23(4): 1272-1281.
[3] Rao MD (2003) Recent applications of viscoelastic damping for noise control in Automobiles And Commercial Airplanes. J Sound Vib 262(3): 457-474.
[4] شعبانی افراپلی س، عبدالله زاده غ‌ر (1394) تأثیر میراگرهای ویسکوالاستیک بر کاهش خسارت لرزه‌ای قاب‌های فولادی تحت زلزله‌های حوزه دور. دومین کنفرانس بین‌المللی ژئوتکنیک و مهندسی لرزه‌ای شهری.
[5] زنگانه ر، کرامت ع‌ر، احمدی الف (1394) تأثیر مشخصات تکیه‏گاه ویسکوالاستیک مدل‌سازی شده با مدل جامع کلوین ویت بر ارتعاش محوری میله. فصل‌نامه مدل‏سازی در مهندسی 111-93 :(41)13.
[6] ASTM E756-05 (2010) Standard test method for measuring vibration-damping properties of materials. American Society for Testing and Materials.
[7] Armandei M, Darwish IF, Ghavami K (2015) Experimental study on variation of mechanical properties of a cantilever beam of bamboo. Constr Build Mater 101(Part 1): 784-790.
[8] Koruk H, Sanliturk KY (2010) On measuring dynamic properties of damping materials using oberst beam method. ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis 2: 127-134, Istanbul, Turkey.
[9] Allahverdizadeh A, Mahjoob MJ, Eshraghi I, Nasrollahzadeh N (2013) On the vibration behavior of functionally graded electrorheological sandwich beams. Int J Mech Sci 70: 130-139.
[10] Hujare PP, Sahasrabudhe AD (2014) Experimental investigation of damping performance of viscoelastic material using constrained layer damping treatment. Procedia Materials Science, International Conference on Advances in Manufacturing and Materials Engineering 5: 726-733.
[11] Mansour G, Tsongas K, Tzetzis D (2016) Modal testing of nanocomposite materials through an optimization algorithm. Measurement 91: 31-38.
[12] Ege K, Boncompagne T, Laulagnet B, Guyader JL (2012) Experimental estimations of viscoelastic properties of multilayer damped plates in broad-band frequency range. Proceedings of Internoise, New York, United States.
[13] Matter M, Gmür T, Cugnoni J, Schorderet A (2009) Numerical-experimental identification of the elastic and damping properties in composite plates. Compos Struct 90(2): 180-187.
[14] SS Arora (2012) Study of vibration characteristics of cantilever beams of different materials. M. Sc. Thesis, Patiala, Mechanical engineering department thapar university 23-27.