Structural Dynamic Load and Parameter Identification Based on Dummy Measurements of Displacement
Structural load and parameter identification are the essential contents in the field of structural dynamics, and some studies pay attention to the coupled recognition of uncertain structure parameters as well as unacquainted loads. Gillijns and De Moor presented the Kalman-type filter, which was use...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2020/8886714 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850166968021155840 |
|---|---|
| author | Ting Wang Zhimin Wan Weiguang Zheng Shuilong He |
| author_facet | Ting Wang Zhimin Wan Weiguang Zheng Shuilong He |
| author_sort | Ting Wang |
| collection | DOAJ |
| description | Structural load and parameter identification are the essential contents in the field of structural dynamics, and some studies pay attention to the coupled recognition of uncertain structure parameters as well as unacquainted loads. Gillijns and De Moor presented the Kalman-type filter, which was used in the work for coupled identification as the unabbreviated form of GDF. However, it has been demonstrated that it is unstable for the extended GDF (EGDF) method, drifting in the identified unacquainted loads as well as displacement, just like most previous identification methods based on the least-square algorithm. In order to deal with this unstable issue, this paper applied the dummy measurements of displacements on a position level and modifies the EGDF algorithm using the information integration method about the accelerated measurements with dummy measurements. Numerical example of a truss is used for validating the applicability of the method in the work, and an influence of covariance matrices in dummy displacements is also considered. |
| format | Article |
| id | doaj-art-e4beefa1df3245be8db8a3e3821704d9 |
| institution | OA Journals |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-e4beefa1df3245be8db8a3e3821704d92025-08-20T02:21:18ZengWileyShock and Vibration1070-96221875-92032020-01-01202010.1155/2020/88867148886714Structural Dynamic Load and Parameter Identification Based on Dummy Measurements of DisplacementTing Wang0Zhimin Wan1Weiguang Zheng2Shuilong He3School of Mechanical Engineering, Nantong Vocational University, Qingnian Middle Road No. 89, Nantong, ChinaSchool of Mechanical Engineering, Nantong Vocational University, Qingnian Middle Road No. 89, Nantong, ChinaGuangxi Key Lab of Manufacturing System and Advanced Manufacturing Technology, Guilin University of Electronic Technology, Guilin, ChinaGuangxi Key Lab of Manufacturing System and Advanced Manufacturing Technology, Guilin University of Electronic Technology, Guilin, ChinaStructural load and parameter identification are the essential contents in the field of structural dynamics, and some studies pay attention to the coupled recognition of uncertain structure parameters as well as unacquainted loads. Gillijns and De Moor presented the Kalman-type filter, which was used in the work for coupled identification as the unabbreviated form of GDF. However, it has been demonstrated that it is unstable for the extended GDF (EGDF) method, drifting in the identified unacquainted loads as well as displacement, just like most previous identification methods based on the least-square algorithm. In order to deal with this unstable issue, this paper applied the dummy measurements of displacements on a position level and modifies the EGDF algorithm using the information integration method about the accelerated measurements with dummy measurements. Numerical example of a truss is used for validating the applicability of the method in the work, and an influence of covariance matrices in dummy displacements is also considered.http://dx.doi.org/10.1155/2020/8886714 |
| spellingShingle | Ting Wang Zhimin Wan Weiguang Zheng Shuilong He Structural Dynamic Load and Parameter Identification Based on Dummy Measurements of Displacement Shock and Vibration |
| title | Structural Dynamic Load and Parameter Identification Based on Dummy Measurements of Displacement |
| title_full | Structural Dynamic Load and Parameter Identification Based on Dummy Measurements of Displacement |
| title_fullStr | Structural Dynamic Load and Parameter Identification Based on Dummy Measurements of Displacement |
| title_full_unstemmed | Structural Dynamic Load and Parameter Identification Based on Dummy Measurements of Displacement |
| title_short | Structural Dynamic Load and Parameter Identification Based on Dummy Measurements of Displacement |
| title_sort | structural dynamic load and parameter identification based on dummy measurements of displacement |
| url | http://dx.doi.org/10.1155/2020/8886714 |
| work_keys_str_mv | AT tingwang structuraldynamicloadandparameteridentificationbasedondummymeasurementsofdisplacement AT zhiminwan structuraldynamicloadandparameteridentificationbasedondummymeasurementsofdisplacement AT weiguangzheng structuraldynamicloadandparameteridentificationbasedondummymeasurementsofdisplacement AT shuilonghe structuraldynamicloadandparameteridentificationbasedondummymeasurementsofdisplacement |