AI SearchDesign and development of a smart structural ambient vibration monitoring system (Record no. 26879)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 04168nas a2200385 a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260818090109.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 260202s20259999th u ms t 000 eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b12474228 |
| 099 #9 - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Thesis no.ST-25-24 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Marghoob, Muhammad Abdur Rahman |
| 245 10 - TITLE STATEMENT | |
| Title | Design and development of a smart structural ambient vibration monitoring system |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Pathum Thani, Thailand : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 2025 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 82 leaves : |
| Other physical details | ill.+ |
| Accompanying material | 1 online resource |
| 490 1# - SERIES STATEMENT | |
| Series statement | Thesis ; |
| Volume/sequential designation | no. ST-25-24 |
| 500 ## - GENERAL NOTE | |
| General note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Structural Engineering |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M. Eng.) - Asian Institute of Technology, 2025 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | This thesis presents the design and development of a low-cost smart structural ambient vibration monitoring system that integrates open-hardware sensing, finite element modelling (FEM), and optimal sensor placement for structural health monitoring of civil structures. The sensing unit is based on a 4.5 Hz horizontal geophone combined with a custom low-noise analogue front-end, an ADS1263 32-bit delta-sigma ADC converter, and a Raspberry Pi 4B for data acquisition, on-board processing, and wireless communication. Hardware performance is validated through shake-table experiments against a commercial Raspberry Shake instrument, showing very close agreement in identified peak frequencies, with 0% deviation. Ambient vibration tests further demonstrate that the proposed sensor achieves root-mean square velocity noise levels of only a few micrometers per second in the 0.1-40 Hz band, confirming its suitability for low-amplitude structural monitoring.On the algorithmic side, a real-time sensor placement and re-optimization framework based on the Effective Independence (EFI) method is implemented. The EFI procedure uses the Fisher Information Matrix and is evaluated with entropy and condition number metrics when reference mode shapes are available. This framework is embedded in a 3D FEM and BIM interface, allowing users to visualize structural models, assign and update sensor locations, stream live data, and view mode shapes extracted using operational modal analysis. A feedback mechanism identifies poorly performing sensors, such as channels with low SNRs and recommends alternative locations using updated mode shapes and information metrics.Three numerical case studies, consisting of a simply supported beam and an irregular two dimensional, are used to verify the EFI implementation and the adaptive re-optimization logic. For the beam, MAC values above 0.97 are obtained between FEM and identified modes. The frame achieves similar values close to unity for three target modes. Experimental validation on a laboratory steel frame confirms that the combined hardware and software platform can reliably capture low-frequency ambient vibrations and maintain good observability of target modes through adaptive sensor configuration. Overall, the results indicate that the proposed smart ambient vibration monitoring system is a practical and cost-effective tool for real-time structural health monitoring and research applications. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Intelligent sensors |
| General subdivision | Design and construction |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Vibration |
| General subdivision | Data processing |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Krishna, Chaitanya, |
| Relator term | Chairperson |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Pennung Warnitchai, |
| Relator term | Examination Committee |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Punchet Thammarak, |
| Relator term | Examination Committee |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Panon Latcharote, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Computers and Structures Inc. (CSI), USA, |
| Relator term | Scholarship Donor |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | AIT Scholarship, |
| Relator term | Scholarship Donor |
| 810 2# - SERIES ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Institute of Technology. |
| Title of a work | Thesis ; |
| Volume/sequential designation | no. ST-25-24 |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/Viewer/viewer.php?id=B23430">http://203.159.5.9/ait-thesis/Viewer/viewer.php?id=B23430</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b12474228 |
| b | mnarc |
| c | a |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 260210 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 0 |
| Cataloger's initials, CIN (RLIN) | 260206 |
| First date, FD (RLIN) | m |
| -- | h |
| -- | a |
| -- | 0 |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 67-Electronic Resource |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : - |
| CREATED | CREATED : 2026-02-02 |
| RECORD Id | RECORD # : i1357081x |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Total checkouts | Full call number | Date last seen | Copy number | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 18/08/2026 | AIT Thesis no.ST-25-24 | 18/08/2026 | 1 | 18/08/2026 | 67-Electronic Resource |