为单个自由度的公式的最佳设计调整的质量阻尼器参数使用遗传算法和H2规范
Seunggoo Kim1, Donwoo Lee1, Seungjae Lee1
1School of Industrial Design & Architectural Engineering, Korea University of Technology & Education, 1600 Chungjeol-ro, Byeongcheon-myeon, Cheonan 31253, Republic of Korea.
Biomimetics (Basel, Switzerland)
|August 28, 2024
概括
本研究介绍了一种明确的公式,使用遗传算法 (GA) 来优化结构中地震振动控制的调量质量阻尼器 (TMD) 参数. 新方法有效地确定了最佳的TMD设置,提高了结构安全性和性能.
科学领域:
- 结构工程 结构工程
- 机械工程 机械工程
- 计算力学 计算力学 计算力学
背景情况:
- 控制动态结构行为在结构工程中至关重要.
- 调节质量阻尼器 (TMD) 对于振动控制是有效的,但最佳参数的确定仍然是一个挑战.
- 对于TMD优化的现有数值技术可能是复杂和计算密集的.
研究的目的:
- 开发一种新的显式公式,用于在地震负荷下为单度自由度 (SDOF) 结构推导最佳TMD参数.
- 使用遗传算法 (GA) 来优化TMD参数.
- 为了最大限度地减少结构的整体振动能量.
主要方法:
- 使用MATLAB的曲线拟合工具箱开发一个最佳TMD参数的明确公式.
- 基因算法 (GA) 的应用用于参数优化.
- 使用状态空间模型和H2规范函数来识别最佳的频率和减噪比.
- 通过多维性能分析进行验证,并应用于多自由度 (MDOF) 结构.
主要成果:
- 成功开发和验证了最佳TMD参数的新明确公式.
- 在SDOF和MDOF结构中应用时,拟议的配方表现出色.
- 基于GA的方法有效地将地震条件下的结构振动能量降到最低.
结论:
- 开发的明确公式提供了一种高效有效的方法来确定最佳的TMD参数.
- 这项研究为使用GA优化的TMDs控制振动提供了新的方向.
- 这些发现对改善各种结构的抗震性能具有重大意义.
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