Broadband Dynamic Sensitivity Analysis of a Euler–Bernoulli Beam Under Thermal Load Using the Efficient Wave-Based Method
Beam-type structures used in aerospace applications may experience simultaneous broadband dynamic excitation and thermal loads. Design sensitivity, as a powerful tool for structural optimization and reliability analysis, is investigated in this work. The broadband dynamic response and its sensitivit...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-05-01
|
| Series: | Aerospace |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2226-4310/12/6/475 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849423829756018688 |
|---|---|
| author | Xudong Zhang Hao Tang Hao Yan Qiang Chen |
| author_facet | Xudong Zhang Hao Tang Hao Yan Qiang Chen |
| author_sort | Xudong Zhang |
| collection | DOAJ |
| description | Beam-type structures used in aerospace applications may experience simultaneous broadband dynamic excitation and thermal loads. Design sensitivity, as a powerful tool for structural optimization and reliability analysis, is investigated in this work. The broadband dynamic response and its sensitivity to input parameters for a Euler–Bernoulli beam in a thermal environment are examined using an efficient wave-based method (WBM). First, the accuracy of the simulation for predicting the broadband dynamic response is validated. Then, the influence of thermal effects on the dynamic response is investigated. Further, the normalized sensitivities of the dynamic response with respect to thermal loads, material properties, and geometric parameters are studied. The simulation results highlight the critical role of thermally generated compressive forces in governing structural dynamics. The normalized sensitivities with respect to different input parameters can vary across the broadband frequency band. In the low-frequency ranges, the sensitivities with respect to thermal load, thermal expansion coefficient, the cross-section area, and moment of inertia are dominant. In the high-frequency ranges, the cross-section area, moment of inertia, elastic modulus, and density have major influence on the dynamic response. All the parameters investigated could significantly affect the mid-frequency dynamic response. |
| format | Article |
| id | doaj-art-9d3c1bc404804956adb7882ee0ab0001 |
| institution | Kabale University |
| issn | 2226-4310 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Aerospace |
| spelling | doaj-art-9d3c1bc404804956adb7882ee0ab00012025-08-20T03:30:28ZengMDPI AGAerospace2226-43102025-05-0112647510.3390/aerospace12060475Broadband Dynamic Sensitivity Analysis of a Euler–Bernoulli Beam Under Thermal Load Using the Efficient Wave-Based MethodXudong Zhang0Hao Tang1Hao Yan2Qiang Chen3School of Mechanical Engineering, Southeast University, Nanjing 211189, ChinaSchool of Mechanical Engineering, Southeast University, Nanjing 211189, ChinaNational Key Laboratory of Strength and Structural Integrity, Aircraft Strength Research Institute of China, Xi’an 710065, ChinaSchool of Mechanical Engineering, Southeast University, Nanjing 211189, ChinaBeam-type structures used in aerospace applications may experience simultaneous broadband dynamic excitation and thermal loads. Design sensitivity, as a powerful tool for structural optimization and reliability analysis, is investigated in this work. The broadband dynamic response and its sensitivity to input parameters for a Euler–Bernoulli beam in a thermal environment are examined using an efficient wave-based method (WBM). First, the accuracy of the simulation for predicting the broadband dynamic response is validated. Then, the influence of thermal effects on the dynamic response is investigated. Further, the normalized sensitivities of the dynamic response with respect to thermal loads, material properties, and geometric parameters are studied. The simulation results highlight the critical role of thermally generated compressive forces in governing structural dynamics. The normalized sensitivities with respect to different input parameters can vary across the broadband frequency band. In the low-frequency ranges, the sensitivities with respect to thermal load, thermal expansion coefficient, the cross-section area, and moment of inertia are dominant. In the high-frequency ranges, the cross-section area, moment of inertia, elastic modulus, and density have major influence on the dynamic response. All the parameters investigated could significantly affect the mid-frequency dynamic response.https://www.mdpi.com/2226-4310/12/6/475design sensitivity analysisbroadband dynamic responsewave-based method (WBM)thermal effect |
| spellingShingle | Xudong Zhang Hao Tang Hao Yan Qiang Chen Broadband Dynamic Sensitivity Analysis of a Euler–Bernoulli Beam Under Thermal Load Using the Efficient Wave-Based Method Aerospace design sensitivity analysis broadband dynamic response wave-based method (WBM) thermal effect |
| title | Broadband Dynamic Sensitivity Analysis of a Euler–Bernoulli Beam Under Thermal Load Using the Efficient Wave-Based Method |
| title_full | Broadband Dynamic Sensitivity Analysis of a Euler–Bernoulli Beam Under Thermal Load Using the Efficient Wave-Based Method |
| title_fullStr | Broadband Dynamic Sensitivity Analysis of a Euler–Bernoulli Beam Under Thermal Load Using the Efficient Wave-Based Method |
| title_full_unstemmed | Broadband Dynamic Sensitivity Analysis of a Euler–Bernoulli Beam Under Thermal Load Using the Efficient Wave-Based Method |
| title_short | Broadband Dynamic Sensitivity Analysis of a Euler–Bernoulli Beam Under Thermal Load Using the Efficient Wave-Based Method |
| title_sort | broadband dynamic sensitivity analysis of a euler bernoulli beam under thermal load using the efficient wave based method |
| topic | design sensitivity analysis broadband dynamic response wave-based method (WBM) thermal effect |
| url | https://www.mdpi.com/2226-4310/12/6/475 |
| work_keys_str_mv | AT xudongzhang broadbanddynamicsensitivityanalysisofaeulerbernoullibeamunderthermalloadusingtheefficientwavebasedmethod AT haotang broadbanddynamicsensitivityanalysisofaeulerbernoullibeamunderthermalloadusingtheefficientwavebasedmethod AT haoyan broadbanddynamicsensitivityanalysisofaeulerbernoullibeamunderthermalloadusingtheefficientwavebasedmethod AT qiangchen broadbanddynamicsensitivityanalysisofaeulerbernoullibeamunderthermalloadusingtheefficientwavebasedmethod |