Study Of Transmissibility Of Laminated Rubber-Metal Spring
Laminated rubber-metal bearing has been well-known as a vibration isolator to dissipate vibration energy. However, most of existing works on the bearing especially the mathematical models consider only the performance of the bearing due to the static force. The main objective of this study is theref...
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| التنسيق: | أطروحة |
| اللغة: | English English |
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2016
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| الوصول للمادة أونلاين: | http://eprints.utem.edu.my/id/eprint/18617/1/Study%20Of%20Transmissibility%20Of%20Laminated%20Rubber-Metal%20Spring%2024%20Pages.pdf http://eprints.utem.edu.my/id/eprint/18617/2/Study%20Of%20Transmissibility%20Of%20Laminated%20Rubber-Metal%20Spring.pdf |
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my-utem-ep.18617 |
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| record_format |
uketd_dc |
| institution |
Universiti Teknikal Malaysia Melaka |
| collection |
UTeM Repository |
| language |
English English |
| advisor |
Putra, Azma |
| topic |
T Technology (General) T Technology (General) |
| spellingShingle |
T Technology (General) T Technology (General) Salim, Mohd Azli Study Of Transmissibility Of Laminated Rubber-Metal Spring |
| description |
Laminated rubber-metal bearing has been well-known as a vibration isolator to dissipate vibration energy. However, most of existing works on the bearing especially the mathematical models consider only the performance of the bearing due to the static force. The main objective of this study is therefore to develop mathematical model to characterize the isolation performance of the bearing; called here laminated rubber-metal spring (LRMS). Mathematical models for ‘transmissibility’ are developed by using three different approaches: (i) lumped parameter system, (ii) distributed parameter system and (iii) discrete lumped parameter system. The first approach uses assumption of massless rubber, where the rubber layers are simply modelled by using spring and damper elements. The second approach employs impedance technique derived from wave propagation across a cylindrical rubber. In this approach, the internal resonances can be predicted. And the
third approach uses a method of dividing a rubber layer into multiple elements of masses and springs in order to predict the equivalent internal resonance as in the second approach. It is found that by adding more metal plates in the rubber, more resonances exist in the transmissibility which can degrade the isolation performance. However, the isolation at high frequencies is improved compared with that of the spring without embedded metal plates. The resonances can be reduced by adding more damping to the rubber. For the experimental work, the LR-MS samples with five different number of embedded metal plates were fabricated using Standard Malaysian Rubber Constant Viscosity (SMR-CV). A test rig for this purpose was also fabricated based on international standards. The measured
data of force transmissibility shows good agreement with the proposed mathematical model. Last but not least, there parametric study is also discussed in this thesis. |
| format |
Thesis |
| qualification_name |
Doctor of Philosophy (PhD.) |
| qualification_level |
Doctorate |
| author |
Salim, Mohd Azli |
| author_facet |
Salim, Mohd Azli |
| author_sort |
Salim, Mohd Azli |
| title |
Study Of Transmissibility Of Laminated Rubber-Metal Spring |
| title_short |
Study Of Transmissibility Of Laminated Rubber-Metal Spring |
| title_full |
Study Of Transmissibility Of Laminated Rubber-Metal Spring |
| title_fullStr |
Study Of Transmissibility Of Laminated Rubber-Metal Spring |
| title_full_unstemmed |
Study Of Transmissibility Of Laminated Rubber-Metal Spring |
| title_sort |
study of transmissibility of laminated rubber-metal spring |
| granting_institution |
Universiti Teknikal Malaysia Melaka |
| granting_department |
Faculty of Mechanical Engineering |
| publishDate |
2016 |
| url |
http://eprints.utem.edu.my/id/eprint/18617/1/Study%20Of%20Transmissibility%20Of%20Laminated%20Rubber-Metal%20Spring%2024%20Pages.pdf http://eprints.utem.edu.my/id/eprint/18617/2/Study%20Of%20Transmissibility%20Of%20Laminated%20Rubber-Metal%20Spring.pdf |
| _version_ |
1747833944529698816 |
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my-utem-ep.186172021-10-08T16:03:43Z Study Of Transmissibility Of Laminated Rubber-Metal Spring 2016 Salim, Mohd Azli T Technology (General) TA Engineering (General). Civil engineering (General) Laminated rubber-metal bearing has been well-known as a vibration isolator to dissipate vibration energy. However, most of existing works on the bearing especially the mathematical models consider only the performance of the bearing due to the static force. The main objective of this study is therefore to develop mathematical model to characterize the isolation performance of the bearing; called here laminated rubber-metal spring (LRMS). Mathematical models for ‘transmissibility’ are developed by using three different approaches: (i) lumped parameter system, (ii) distributed parameter system and (iii) discrete lumped parameter system. The first approach uses assumption of massless rubber, where the rubber layers are simply modelled by using spring and damper elements. The second approach employs impedance technique derived from wave propagation across a cylindrical rubber. In this approach, the internal resonances can be predicted. And the third approach uses a method of dividing a rubber layer into multiple elements of masses and springs in order to predict the equivalent internal resonance as in the second approach. It is found that by adding more metal plates in the rubber, more resonances exist in the transmissibility which can degrade the isolation performance. However, the isolation at high frequencies is improved compared with that of the spring without embedded metal plates. The resonances can be reduced by adding more damping to the rubber. For the experimental work, the LR-MS samples with five different number of embedded metal plates were fabricated using Standard Malaysian Rubber Constant Viscosity (SMR-CV). A test rig for this purpose was also fabricated based on international standards. The measured data of force transmissibility shows good agreement with the proposed mathematical model. Last but not least, there parametric study is also discussed in this thesis. UTeM 2016 Thesis http://eprints.utem.edu.my/id/eprint/18617/ http://eprints.utem.edu.my/id/eprint/18617/1/Study%20Of%20Transmissibility%20Of%20Laminated%20Rubber-Metal%20Spring%2024%20Pages.pdf text en public http://eprints.utem.edu.my/id/eprint/18617/2/Study%20Of%20Transmissibility%20Of%20Laminated%20Rubber-Metal%20Spring.pdf text en validuser https://plh.utem.edu.my/cgi-bin/koha/opac-detail.pl?biblionumber=100414 phd doctoral Universiti Teknikal Malaysia Melaka Faculty of Mechanical Engineering Putra, Azma 1. M.A. Salim, A. Putra, D.J. Thompson, N. Ahmad, M.A. Abdullah, “Transmissibility of Laminated Rubber-Metal Spring: A Preliminary Study”, Applied Mechanics and Materials, Vol. 393, pp. 661-665, ISSN1660-9336, 2013. {Publisher: Trans Tech Publications. Indexed: Scopus, EI Compendex, Cambridge Scientific Abstracts, Chemical Abstracts, Google and Google Scholar, ISI, Institution of Engineers}. {DOI:10.4028/www.scientific.net/AMM.393.661} 2. M.A. Salim, A. Putra, M.A. Abdullah, “Analysis of Axial Vibration in the Laminated Rubber-Metal Spring”, Advanced Materials Research, Vol. 845, pp. 46-50, ISSN 1662 – 8985, 2014. {Publisher: Trans Tech Publications. Indexed: SCOPUS, EI Compendex, Cambridge Scientific Abstracts, Chemical Abstracts, Google and Google Scholar, ISI, Institution of Engineers}. {DOI:10.4028/www.scientific.net/AMR.845.46}. 3. Siti Norfarizan, Azma Putra, Haryanti Samekto and Mohd Azli Salim, “Static Analysis of a Laminated Rubber-Metal Spring using Finite Element Method”, Advanced Materials Research, Vol. 845, pp. 86-90, ISSN 1662 – 8985, 2014. {Publisher: Trans Tech Publications. Indexed: SCOPUS, EI Compendex, Cambridge Scientific Abstracts, Chemical Abstracts, Google and Google Scholar, ISI, Institution of Engineers}. {DOI:10.4028/www.scientific.net/AMR.845.86}. 4. M.A. Salim, A. Putra, M.A. Abdullah, “Natural Rubber-Metal Plate for Automotive Engine Isolator”, The Postgraduate Symposium on Composites Science and Technology 2014 & 4 Postgraduate Seminar on Natural Fibre Composites 2014, Faculty of Engineering, Universiti Putra Malaysia, Page 75 – 79, ISBN 978-983- 2408-15-4. 5. M.A. Salim, A. Putra, M.A. Abdullah, “Predicted Transmissibility of an Experimental Approach for a Laminated Rubber-Metal Spring”, American-Eurasian Journal of Sustainable Agriculture, Vol. 8 (4), pp. 104-110, ISSN 1995-0748, 2014. {Publisher: AENSI Journals. Indexed: SCOPUS, Thomson Gale, CABI, Ulrich’s Periodicals Directory, AGRICOLA, DOAJ, Open J-Gate, Index Copernicus, Electronic Journals Library, EBSCO USA, and Islamic World Science Citation Center (ISC)}. 6. M.A. Abdullah, M.A. Salim, A. Putra, “Linear and Angular Displacement Relationship of Natural Rubber Engine Isolator”, Applied Mechanics and Materials, Vol. 575, pp. 250-253, ISSN 1660-9336, 2014. {Publisher: Trans Tech Publications. Indexed: SCOPUS, EI Compendex, Cambridge Scientific Abstracts, Chemical Abstracts, Google and Google Scholar, ISI, Institution of Engineers}. {DOI:10.4028/www.scientific.net/AMM.575.250}. 7. M.A. Salim, A. Putra, M.A. Abdullah, “Mathematical Formulation for Bending Moment Wave in Non-Dispersive Finite Rod”, International Review on Modelling and Simulations, Vol. 7, N. 3, pp. 523-530, ISSN 1974 – 9821, 2014. {Publisher: Praise Worthy Prize. Indexed: Cambridge Scientific Abstracts (CSA/CIG), Elsevier Bibliographic Database SCOPUS, Academic Search Complete (EBSCO Information Services, Index Copernicus (Journal Master List): IF 6.46}. 8. M.A. Salim, A. Putra, M.A. Abdullah, N. Ahmad, “Development of Laminated Rubber-Metal Spring using Standard Malaysia Rubber Constant Viscocity-60”, Vol. 8, No. 4, pp. 761-765, International Review of Mechanical Engineering, ISSN 1970- 8742, 2014. {Publisher: Praise Worthy Prize. Indexed: Cambridge Scientific Abstracts (CSA/CIG), Elsevier Bibliographic Database SCOPUS, Academic Search Complete (EBSCO Information Services, Index Copernicus (Journal Master List): IF 6.46}. 9. Mohd Azli Salim, Azma Putra, Asyraf Ismail and Mohd Azman Abdullah, “Transmissibility Curve on Laminated Rubber-Metal Spring”, ENG-20, Sixth International Conference on Postgraduate Education, ICPE 2014, Universiti Tun Hussein Onn. 10. Mohd Azli Salim, Mohd Azman Abdullah, Azma Putra, “Mullins Effect on Laminated Rubber-Metal Spring”, Applied Mechanics and Materials, Vol. 699, pp. 331-335, ISSN 1660 – 9336, 2015. {Publisher: Trans Tech Publications. Indexed: SCOPUS, EI Compendex, Cambridge Scientific Abstracts, Chemical Abstracts, Google and Google Scholar, ISI, Institution of Engineers}. {DOI: 10.4028/www/scientific.net/AMM.699, 331}. 11. M.A. Salim, A. Putra, M.A. Abdullah, “Horizontal Displacement of Laminated Rubber-Metal Spring for Engine Isolator”, ARPN Journal of Engineering and Applied Sciences, Vol. 10, No. 17, ISSN 1819 – 6608, 2015. {Publisher: ARPN Journal.coms. Indexed: SCOPUS, EI Compendex, Cambridge Scientific Abstracts, Chemical Abstracts, Google and Google Scholar, ISI, Institution of Engineers}. 12. Giacomo Squicciarini, Azma Putra, David J. Thompson, Xianying Zhang, Mohd Azli Salim, “Use of a Reciprocity Technique to Measure the Radiation Efficiency of a Vibrating Structure” Applied Acoustics, Vol. 89, pp. 107-121, ISSN 0003-682X, {Publisher: Elsevier. Indexed: Applied Mechanics Reviews, Cambridge Scientific Abstracts, Current Contents/Engineering, Computing & Technology, Engineering Index Monthly, EBSCOhost, GeoRef, INSPEC, PubMed, Web of Science, Ei Compendex, Scopus, Science Citation Index Expanded, TEMA – Technik und Management, Gale Academic OneFile, Gale Infotrac Custom}. IF – 1.068. {DOI: 10.1016/j.apacoust.2014.09.013}. PUBLISHED. 13. Siti Norfarizan Jamaluddin, Azma Putra, Mohd Azli Salim, Haryanti Samekto, “Modeling Transmissibility of a Rubber Isolator using Finite Element Analysis”, Mechanical Engineering Research Day 2015, Centre for Advanced Research on Energy, Faculty of Mechanical Engineering, Universiti Teknikal Malaysia Melaka. 14. M.A. Salim, S.N. Jamaluddin, A. Putra, M.A. Abdullah, “Stress Distributions on Sustainable Vibration Isolator using Numerical Method”, Mechanical Engineering Research Day 2015, Centre for Advanced Research on Energy, Faculty of Mechanical Engineering, Universiti Teknikal Malaysia Melaka. PUBLISHED. 15. M.A. Salim, A. Putra, M.R. Mansor, M.T. Musthafah, M.Z. Akop, M.A. Abdullah, M.N. Abdul Rahman, M.N. Sudin, M.A. Shaharuzaman, “Sustainable of Laminated Rubber-Metal Spring in Transverse Vibration”, Procedia Chemistry, Vol. 19, pp. 203-210, ISSN 1879 – 6196, 2016. {Publisher: ScienceDirect, Elsevier Ltd. Indexed: SCOPUS (SJR: 0.494. Impact: 0.525)}. 16. M.A. Salim, A. Putra, M.R. Mansor, M.T. Musthafah, M.Z. Akop, M.A. Abdullah, “Analysis of Parameters Assessment on Laminated Rubber-Metal Spring for Structural Vibration”, IOP Conf. Series: Materials Science and Engineering, Vol. 114, pp. 1 – 12, ISSN 1757 – 899X, 2016. {Publisher: IOPScience}. |