[1]吴 斌,邱汉青.基于模态分析的飞艇动力支架设计[J].机械与电子,2025,(05):70-74.
　WU Bin,QIU Hanqing.Design of the Airship Power Bracket Based on Model Analysis[J].Machinery & Electronics,2025,(05):70-74.
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基于模态分析的飞艇动力支架设计()
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《机械与电子》[ISSN:1001-2257/CN:52-1052/TH]

卷:
期数:
2025年05期
页码:
70-74
栏目:
机电一体化
出版日期:
2025-05-23

文章信息/Info

Title:
Design of the Airship Power Bracket Based on Model Analysis
文章编号:
1001-2257 ( 2025 ) 05-0070-05
作者:
吴 斌; 邱汉青
中国电子科技集团公司第三十八研究所,安徽 合肥 230088
Author(s):
WU Bin ;  QIU Hanqing
( No.38 Research Institute of CETC , Hefei 230088 , China )
关键词:
飞艇; 动力支架; 模态分析; 主撑杆
Keywords:
airship ;  power bracket ;  model analysis ;  main strut
分类号:
V274 ;TH113.1
文献标志码:
A
摘要:
动力支架是飞艇的重要构件,用于承载动力推进设备。飞行过程中,动力推进设备的高速转动产生激振,易使动力支架遭到共振破坏。基于有限元软件,计算了某动力支架的固有振动特性,依据系统前 10 阶振型图,分析了振动对推力线的影响。分析了具有不同主撑杆结构的动力支架的固有频率,并归纳了其固有频率受主撑杆壁厚、外径影响的变化规律。结果表明,改变主撑杆的壁厚和外径尺寸均可使动力支架的固有频率远离激振频率,有效避免共振现象的发生。
Abstract:
As an important component , the power bracket serves to carry propulsion systems.During the flight , the high-speed rotation of the propulsion unit generates excitation , which could easily cause resonance damage to the power bracket.The natural vibration characteristics of the power bracket were calculated and the first 10 vibration mode diagrams were obtained on FEM software for analyzing the impact of vibration on the thrust line.A study was carried out on the natural frequencies and main modes of vibration of power brackets with different main strut structures to identify the variation law of their natural frequencies affected by the wall thickness and outer diameter of the main struts.The results show that changing the wall thickness and outer diameter of the main struts could avoid the excitation frequency of the natural frequency of the power bracket , effectively preventing the occurrence of resonance phenomenon.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2024-11-14
基金项目:军内装备科研基础研究项目( XXXX-06J13-2022A020 )
作者简介:吴 斌 ( 1983- ),男,安徽亳州人,硕士,高级工程师,研究方向为无人飞行器结构设计。
更新日期/Last Update: 2025-06-13