考虑频率约束的空气弹簧构型优化设计

刘继军

考虑频率约束的空气弹簧构型优化设计

刘继军

1.
中国飞机强度研究所第二研究室, 西安 710065

详细信息

作者简介:
刘继军(1981-)，工程师，硕士，研究方向为结构动力学和冲击动力学，liujijun0514@163.com

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- 被引次数: 0
出版历程
- 收稿日期: 2012-11-19
- 刊出日期: 2015-06-10

Optimization Design of the Air-spring Shape Considering Frequency Constraint

Liu Jijun

1.
AVIC Aircraft Strength Research Institute, Xi'an 710065

摘要

摘要: 用于地面振动试验(ground vibration test,GVT)的空气弹簧对承载能力、腔内工作压力、低频特性的要求非常高。针对该类空气弹簧低频特性,推导出其垂向频率近似表达式。通过对该表达式定性分析,发现空气弹簧垂向频率仅与其几何构型参数相关。利用Abaqus二次开发功能编写空气弹簧储气罐主腔体结构的参数化有限元模型,然后以其几何构型参数为设计变量,以空气弹簧低频特性、空气弹簧储气罐主腔体结构强度和刚度为约束,储气罐主腔体质量最小化为设计目标进行构型优化设计。结果表明优化后的结构的质量较初始设计有大幅降低。该优化设计方法能使得不同承载能力的GVT空气弹簧设计系列化。
- 地面振动试验 /
- 空气弹簧 /
- 参数化有限元模型 /
- 二次开发 /
- 构型优化
Abstract: The requirements of carrying capacity, cavity pressure and low frequency performance for air-spring of GVT are especially strict. An approximate expression of the vertical frequency was deduced for such air-spring considering the low frequency characteristics. Based on the qualitative analysis, it was found that the vertical frequency was only decided by the geometric properties of the air-spring. A parameterized FE model of main structure of a gas tank was built by using the ABAQUS software and then the Air-spring Shape was optimizated so as to minimize the mass of gas tank by constraining the low frequency performance, strength and stiffness of the main structure of gas tank. The results showed that the optimized structure mass was greatly decreased. The present optimization method could be adopted for designing the GVT air-spring with different loading capabilities.

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参考文献(15)

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