Comparing Bolt Implementation Methods in Vibration Testing for Accurate Dynamic Behavior Analysis
Vibration testing is crucial for understanding structural dynamics, yet conventional modeling of bolt connections often leads to significant inaccuracies. This study systematically compares six bolt connection methods—bonded, adaptive bonded, joint, beam, screw, and fixed bolt—using a finite element...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-01-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/15/2/505 |
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| author | Jong Hyuk Back Jeong Bin Bae Ji Hye Kang Jung Jin Kim |
| author_facet | Jong Hyuk Back Jeong Bin Bae Ji Hye Kang Jung Jin Kim |
| author_sort | Jong Hyuk Back |
| collection | DOAJ |
| description | Vibration testing is crucial for understanding structural dynamics, yet conventional modeling of bolt connections often leads to significant inaccuracies. This study systematically compares six bolt connection methods—bonded, adaptive bonded, joint, beam, screw, and fixed bolt—using a finite element analysis of a headlamp vibration test jig. The six bolt connection methods were selected based on approaches adopted in previous studies. The experimental results identified the joint connection method as the most accurate, minimizing deviations in natural frequency to 7.6 Hz compared to experimental tests at 493.2 Hz, while bonded methods overestimated the frequency at 544.1 Hz due to excessive stiffness assumptions. Efficiency analyses highlighted bonded methods as the most computationally streamlined, offering preprocessing times as short as 30 s and shorter overall analysis times. These findings emphasize the importance of selecting appropriate bolt connection methods in the early design phase to ensure accurate natural frequency predictions and mode shape representations. Although this study does not consider bolt preload forces, the work shows the possibility of offering practical guidelines for improving the reliability and efficiency of vibration test jig designs by bridging the gap between analysis and experimental results. |
| format | Article |
| id | doaj-art-17f8142c790d4ea48bbf9cad9eaa5636 |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-17f8142c790d4ea48bbf9cad9eaa56362025-01-24T13:19:36ZengMDPI AGApplied Sciences2076-34172025-01-0115250510.3390/app15020505Comparing Bolt Implementation Methods in Vibration Testing for Accurate Dynamic Behavior AnalysisJong Hyuk Back0Jeong Bin Bae1Ji Hye Kang2Jung Jin Kim3Department of Mechanical Engineering, Keimyung University, Daegu 42601, Republic of KoreaDepartment of Mechanical Engineering, Keimyung University, Daegu 42601, Republic of KoreaSL Corporation, Gyeongsan-si 38470, Republic of KoreaDepartment of Mechanical Engineering, Keimyung University, Daegu 42601, Republic of KoreaVibration testing is crucial for understanding structural dynamics, yet conventional modeling of bolt connections often leads to significant inaccuracies. This study systematically compares six bolt connection methods—bonded, adaptive bonded, joint, beam, screw, and fixed bolt—using a finite element analysis of a headlamp vibration test jig. The six bolt connection methods were selected based on approaches adopted in previous studies. The experimental results identified the joint connection method as the most accurate, minimizing deviations in natural frequency to 7.6 Hz compared to experimental tests at 493.2 Hz, while bonded methods overestimated the frequency at 544.1 Hz due to excessive stiffness assumptions. Efficiency analyses highlighted bonded methods as the most computationally streamlined, offering preprocessing times as short as 30 s and shorter overall analysis times. These findings emphasize the importance of selecting appropriate bolt connection methods in the early design phase to ensure accurate natural frequency predictions and mode shape representations. Although this study does not consider bolt preload forces, the work shows the possibility of offering practical guidelines for improving the reliability and efficiency of vibration test jig designs by bridging the gap between analysis and experimental results.https://www.mdpi.com/2076-3417/15/2/505bolt implementationdynamic behavior analysisvibration testingfinite element analysis |
| spellingShingle | Jong Hyuk Back Jeong Bin Bae Ji Hye Kang Jung Jin Kim Comparing Bolt Implementation Methods in Vibration Testing for Accurate Dynamic Behavior Analysis Applied Sciences bolt implementation dynamic behavior analysis vibration testing finite element analysis |
| title | Comparing Bolt Implementation Methods in Vibration Testing for Accurate Dynamic Behavior Analysis |
| title_full | Comparing Bolt Implementation Methods in Vibration Testing for Accurate Dynamic Behavior Analysis |
| title_fullStr | Comparing Bolt Implementation Methods in Vibration Testing for Accurate Dynamic Behavior Analysis |
| title_full_unstemmed | Comparing Bolt Implementation Methods in Vibration Testing for Accurate Dynamic Behavior Analysis |
| title_short | Comparing Bolt Implementation Methods in Vibration Testing for Accurate Dynamic Behavior Analysis |
| title_sort | comparing bolt implementation methods in vibration testing for accurate dynamic behavior analysis |
| topic | bolt implementation dynamic behavior analysis vibration testing finite element analysis |
| url | https://www.mdpi.com/2076-3417/15/2/505 |
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