The effect of progressive crack on dynamic properties of tapered beam using EMA / Mohd Hafiz Zaini
Cracks in vibrating component can initiate catastrophic failures. The presences of cracks change the physical characteristics of a structure which in turn alter its dynamic response characteristics. Therefore there is need to understand dynamics of cracked structures. Crack depth and location are th...
| Main Author: | |
|---|---|
| Format: | Thesis |
| Language: | English |
| Published: |
2010
|
| Subjects: | |
| Online Access: | https://ir.uitm.edu.my/id/eprint/36518/1/36518.pdf |
| _version_ | 1825738319750758400 |
|---|---|
| author | Zaini, Mohd Hafiz |
| author_facet | Zaini, Mohd Hafiz |
| author_sort | Zaini, Mohd Hafiz |
| collection | UITM |
| description | Cracks in vibrating component can initiate catastrophic failures. The presences of cracks change the physical characteristics of a structure which in turn alter its dynamic response characteristics. Therefore there is need to understand dynamics of cracked structures. Crack depth and location are the main parameters for the vibration analysis. Along with the development of modem computer technology, experimental modal analysis has become the main tool for solving complicated structural vibration problems. Modal analysis is therefore made necessary as such measurement generates dynamic response of structures because natural frequency can indicate the deflection of the structure which also significant in determining of cracking. The scope of the project experiment modal testing is carried out on the uncracked and progressives cracked of mild steel tapered beam. Two boundary conditions were selected to carry out in the experiment such are Free Hanging and Simply Supported. Progressives cracks were seeded on a structure by using hacksaw. For a different crack depth the dynamic properties were determined. This project covers a technique experimental method by using db Real time Analyzer (dbRTA) or 01 db Four Channel equipment and ME' Scope software. Then simulation and compare the result by numerical model finite element analysis with the help of ANSYS 5.7 software. |
| first_indexed | 2024-03-06T02:31:44Z |
| format | Thesis |
| id | oai:ir.uitm.edu.my:36518 |
| institution | Universiti Teknologi MARA |
| language | English |
| last_indexed | 2024-03-06T02:31:44Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | oai:ir.uitm.edu.my:365182020-11-12T03:41:29Z https://ir.uitm.edu.my/id/eprint/36518/ The effect of progressive crack on dynamic properties of tapered beam using EMA / Mohd Hafiz Zaini Zaini, Mohd Hafiz Mechanics applied to machinery. Dynamics Cracks in vibrating component can initiate catastrophic failures. The presences of cracks change the physical characteristics of a structure which in turn alter its dynamic response characteristics. Therefore there is need to understand dynamics of cracked structures. Crack depth and location are the main parameters for the vibration analysis. Along with the development of modem computer technology, experimental modal analysis has become the main tool for solving complicated structural vibration problems. Modal analysis is therefore made necessary as such measurement generates dynamic response of structures because natural frequency can indicate the deflection of the structure which also significant in determining of cracking. The scope of the project experiment modal testing is carried out on the uncracked and progressives cracked of mild steel tapered beam. Two boundary conditions were selected to carry out in the experiment such are Free Hanging and Simply Supported. Progressives cracks were seeded on a structure by using hacksaw. For a different crack depth the dynamic properties were determined. This project covers a technique experimental method by using db Real time Analyzer (dbRTA) or 01 db Four Channel equipment and ME' Scope software. Then simulation and compare the result by numerical model finite element analysis with the help of ANSYS 5.7 software. 2010 Thesis NonPeerReviewed text en https://ir.uitm.edu.my/id/eprint/36518/1/36518.pdf The effect of progressive crack on dynamic properties of tapered beam using EMA / Mohd Hafiz Zaini. (2010) Degree thesis, thesis, Universiti Teknologi MARA. |
| spellingShingle | Mechanics applied to machinery. Dynamics Zaini, Mohd Hafiz The effect of progressive crack on dynamic properties of tapered beam using EMA / Mohd Hafiz Zaini |
| title | The effect of progressive crack on dynamic properties of tapered beam using EMA / Mohd Hafiz Zaini |
| title_full | The effect of progressive crack on dynamic properties of tapered beam using EMA / Mohd Hafiz Zaini |
| title_fullStr | The effect of progressive crack on dynamic properties of tapered beam using EMA / Mohd Hafiz Zaini |
| title_full_unstemmed | The effect of progressive crack on dynamic properties of tapered beam using EMA / Mohd Hafiz Zaini |
| title_short | The effect of progressive crack on dynamic properties of tapered beam using EMA / Mohd Hafiz Zaini |
| title_sort | effect of progressive crack on dynamic properties of tapered beam using ema mohd hafiz zaini |
| topic | Mechanics applied to machinery. Dynamics |
| url | https://ir.uitm.edu.my/id/eprint/36518/1/36518.pdf |
| work_keys_str_mv | AT zainimohdhafiz theeffectofprogressivecrackondynamicpropertiesoftaperedbeamusingemamohdhafizzaini AT zainimohdhafiz effectofprogressivecrackondynamicpropertiesoftaperedbeamusingemamohdhafizzaini |