Development and Validation of Bone Models using Structural Dynamic Measurement Methods
Vibration measurement and signal analysis methods are common to evaluate the functionality and characteristics of technical components in different industrial and scientific areas. Modal analysis for example is a standard method to characterize the dynamic behavior of a structure and enables the dev...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2019-09-01
|
| Series: | Current Directions in Biomedical Engineering |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/cdbme-2019-0086 |
| _version_ | 1811246870266118144 |
|---|---|
| author | Neupetsch Constanze Hensel Eric Werner Michael Meißner Sven Troge Jan Drossel Welf-Guntram Rotsch Christian |
| author_facet | Neupetsch Constanze Hensel Eric Werner Michael Meißner Sven Troge Jan Drossel Welf-Guntram Rotsch Christian |
| author_sort | Neupetsch Constanze |
| collection | DOAJ |
| description | Vibration measurement and signal analysis methods are common to evaluate the functionality and characteristics of technical components in different industrial and scientific areas. Modal analysis for example is a standard method to characterize the dynamic behavior of a structure and enables the development of validated bone models. The state of the art of analyzing bone structures does not include the modal damping, although it has a significant influence on the dynamic characteristics. Within the presented investigations, the modal analyses have been performed contactless with respect to excitation and response acquisition, which implies that there are no influences of shakers or sensor couplings. Therefore, an automatic impulse hammer and a 3D Scanning Laser Doppler Vibrometer were used for excitation and response detection. Various supports of the test specimens, surface pretreatments, excitation points and excitation impulses were examined to optimize the measurement setup and process. Experimental modal analysis data were analyzed by curve fitting methods to determine the modal parameters. To evaluate different structures and effects of damping, 3D printed artificial bones and animal in vitro bones were used to perform the measurements. To produce the cortical layer of the artificial bone models, volume models were generated based on medical image data and printed by polyamide-based selective laser sintering. The cancellous bone was represented by different foam fillings for the artificial bones. Thereby, the variation of the porosity was achieved by using different mixing ratios of polyurethane foam and hardener. Furthermore, the modal damping parameters were determined from the measurement of animal bones. The measurement time was optimized during the practical implementation of the parameter determination to minimize the influence of drying and decomposition processes on the measurement results. |
| first_indexed | 2024-04-12T14:59:39Z |
| format | Article |
| id | doaj.art-1348c01a2626479a88b3336ec34664f9 |
| institution | Directory Open Access Journal |
| issn | 2364-5504 |
| language | English |
| last_indexed | 2024-04-12T14:59:39Z |
| publishDate | 2019-09-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Current Directions in Biomedical Engineering |
| spelling | doaj.art-1348c01a2626479a88b3336ec34664f92022-12-22T03:28:06ZengDe GruyterCurrent Directions in Biomedical Engineering2364-55042019-09-015134334510.1515/cdbme-2019-0086cdbme-2019-0086Development and Validation of Bone Models using Structural Dynamic Measurement MethodsNeupetsch Constanze0Hensel Eric1Werner Michael2Meißner Sven3Troge Jan4Drossel Welf-Guntram5Rotsch Christian6Chemnitz University of Technology, Professorship for Adaptronics and Lightweight Design in Production,Chemnitz, GermanyFraunhofer Institute for Machine Tools and Forming Technology IWU, Chemnitz/Dresden, GermanyFraunhofer Institute for Machine Tools and Forming Technology IWU,Chemnitz/Dresden, GermanyFraunhofer Institute for Machine Tools and Forming Technology IWU,Chemnitz/Dresden, GermanyFraunhofer Institute for Machine Tools and Forming Technology IWU,Chemnitz/Dresden, GermanyFraunhofer Institute for Machine Tools and Forming Technology IWU,Chemnitz/Dresden, GermanyFraunhofer Institute for Machine Tools and Forming Technology IWU,Chemnitz/Dresden, GermanyVibration measurement and signal analysis methods are common to evaluate the functionality and characteristics of technical components in different industrial and scientific areas. Modal analysis for example is a standard method to characterize the dynamic behavior of a structure and enables the development of validated bone models. The state of the art of analyzing bone structures does not include the modal damping, although it has a significant influence on the dynamic characteristics. Within the presented investigations, the modal analyses have been performed contactless with respect to excitation and response acquisition, which implies that there are no influences of shakers or sensor couplings. Therefore, an automatic impulse hammer and a 3D Scanning Laser Doppler Vibrometer were used for excitation and response detection. Various supports of the test specimens, surface pretreatments, excitation points and excitation impulses were examined to optimize the measurement setup and process. Experimental modal analysis data were analyzed by curve fitting methods to determine the modal parameters. To evaluate different structures and effects of damping, 3D printed artificial bones and animal in vitro bones were used to perform the measurements. To produce the cortical layer of the artificial bone models, volume models were generated based on medical image data and printed by polyamide-based selective laser sintering. The cancellous bone was represented by different foam fillings for the artificial bones. Thereby, the variation of the porosity was achieved by using different mixing ratios of polyurethane foam and hardener. Furthermore, the modal damping parameters were determined from the measurement of animal bones. The measurement time was optimized during the practical implementation of the parameter determination to minimize the influence of drying and decomposition processes on the measurement results.https://doi.org/10.1515/cdbme-2019-0086experimental modal analysisbone structureartificial bone3d scanning laser doppler vibrometry |
| spellingShingle | Neupetsch Constanze Hensel Eric Werner Michael Meißner Sven Troge Jan Drossel Welf-Guntram Rotsch Christian Development and Validation of Bone Models using Structural Dynamic Measurement Methods Current Directions in Biomedical Engineering experimental modal analysis bone structure artificial bone 3d scanning laser doppler vibrometry |
| title | Development and Validation of Bone Models using Structural Dynamic Measurement Methods |
| title_full | Development and Validation of Bone Models using Structural Dynamic Measurement Methods |
| title_fullStr | Development and Validation of Bone Models using Structural Dynamic Measurement Methods |
| title_full_unstemmed | Development and Validation of Bone Models using Structural Dynamic Measurement Methods |
| title_short | Development and Validation of Bone Models using Structural Dynamic Measurement Methods |
| title_sort | development and validation of bone models using structural dynamic measurement methods |
| topic | experimental modal analysis bone structure artificial bone 3d scanning laser doppler vibrometry |
| url | https://doi.org/10.1515/cdbme-2019-0086 |
| work_keys_str_mv | AT neupetschconstanze developmentandvalidationofbonemodelsusingstructuraldynamicmeasurementmethods AT henseleric developmentandvalidationofbonemodelsusingstructuraldynamicmeasurementmethods AT wernermichael developmentandvalidationofbonemodelsusingstructuraldynamicmeasurementmethods AT meißnersven developmentandvalidationofbonemodelsusingstructuraldynamicmeasurementmethods AT trogejan developmentandvalidationofbonemodelsusingstructuraldynamicmeasurementmethods AT drosselwelfguntram developmentandvalidationofbonemodelsusingstructuraldynamicmeasurementmethods AT rotschchristian developmentandvalidationofbonemodelsusingstructuraldynamicmeasurementmethods |