基于变形控制的低压涡轮单元体水平装配技术研究

刘浩; 洪杰; 于乃江

doi:10.13224/j.cnki.jasp.20220280

基于变形控制的低压涡轮单元体水平装配技术研究

doi: 10.13224/j.cnki.jasp.20220280

刘浩^{1, 2},
洪杰¹,
于乃江²

1.
北京航空航天大学航空发动机研究院，北京 102206
2.
中国航发商用航空发动机有限责任公司，上海 200241

基金项目: 国家科技重大专项（2017-Ⅶ-0010-0105, 2017-Ⅳ-0011-0048）

详细信息

作者简介:
刘浩（1989-），男，工程师，博士生，主要从事航空发动机装配力学研究

中图分类号: V263.2
计量
- 文章访问数: 148
- HTML浏览量: 50
- PDF量: 75
- 被引次数: 0
出版历程
- 收稿日期: 2022-04-29
- 网络出版日期: 2022-09-12

Research on horizontal assembly technology of low pressure turbine unit based on deformation control

1.
Research Institute of Aero-Engine，Beihang University，Beijing 102206，China
2.
Commercial Aircraft Engine Company Limited， Aero Engine Corporation of China，Shanghai 200241，China

摘要

摘要:
应用装配力学的理念对商用大涵道比航空发动机低压涡轮单元体传统水平装配技术进行改进，开展了低压涡轮单元体水平对接过程力学仿真分析，开发了基于变形控制的水平装配技术，实现了低压涡轮单元体数字化、高效率、高可靠性的安装。相较传统水平装配，引导工装结构更简洁，质量降低约70%；极大降低了对接难度，装配效率提高60%以上，一次对接成功率提升至100%。
- 航空发动机 /
- 低压涡轮 /
- 装配技术 /
- 变形控制 /
- 仿真 /
- 数字化
Abstract:
The concept of assembly mechanics was applied to improve the traditional horizontal assembly technology of low pressure turbine unit of commercial high bypass ratio aero-engine. An advanced horizontal assembly technology was developed based on deformation control by mechanical simulation analysis of the horizontal docking process of low pressure turbine unit. The result demonstrated that this technology realized the installation of low pressure turbine unit with high precision, high efficiency and high reliability. In addition, compared with traditional experience assembly, the guided tool structure was more concise by contributing to around 70% reduction of the weight, and the docking difficulty was greatly reduced by contributing to more than 60% increase of the assembly efficiency and 100% increase of the success rate of one-time docking.
- aero-engine /
- low pressure turbine /
- assembly technology /
- deformation control /
- simulation /
- digitalization

HTML

图 1 商用航空发动机结构示意图

Figure 1. Diagram of commercial aeroengine

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图 2 LPT单元体水平对接工艺

Figure 2. LPT unit horizontal docking process

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图 3 悬臂梁受均布载荷和集中载荷模型

Figure 3. Cantilever beam model under uniformly distributed and concentrated loads

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图 4 单简支带悬臂的梁受均布载荷模型

Figure 4. Single supported cantilever beam model under uniformly distributed load

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图 5 一端固定一端简支的单简支梁受均布载荷模型

Figure 5. Single supported beam with fixed end and simply supported end model under uniformly distributed load

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图 6 双简支带悬臂的梁受均布载荷模型

Figure 6. Double supported cantilever beam model under uniformly distributed load

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图 7 引导工装优化设计流程

Figure 7. Guide tool optimization design process

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图 8 引导工装结构对比

Figure 8. Comparison of guide tool structure

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图 9 典型装配特征参数模型预测值与有限元仿真值的对比

Figure 9. Comparison between prediction and finite element simulation of typical assembly feature parameters

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图 10 水平对接进程控制函数与实测值对比

Figure 10. Comparison between control function and measured value of horizontal docking process

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表 1 引导工装结构设计参数对比

Table 1. Comparison of guide tool structural design parameters

结构参数		传统	优化
结构参数		X-01	X-02	X-03
前/后引导环	轴向间距L₁/mm	2696	2307	2307
	与引导轴配合方式	滑动	滚动	滚动
	与引导轴配合/mm	0.1	0.05	0.05
引导轴	材料	45#钢	45#钢	45#钢
	壁厚限值[$\tilde B $]/mm		0	4
	长度L_g/mm	3032	1485	1004
	外径D/mm	90	80	82
	内径d/mm	80	75	74
	质量Ψ/kg	31.76	7.09	7.72

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表 2 LPT单元体装配效果对比

Table 2. Comparison of LPT unit assembly effect

装配效果	传统装配技术	基于变形控制的装配技术
装配难度	高	低
磕碰/卡滞	有	无
装配时长/h	约为3	约为1
一次对接成功率/%	约为30	100
引导安装贴合程度	不到位	到位

下载: 导出CSV

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