定几何二元进气道入口堵盖开启结构设计
关键词 二元进气道 入口堵盖 结构设计
毕业设计说明书（论文）外文摘要
Title Structural Design Of Fixed Geometry Two-dimensional
Closure Shutter
Abstract
The analysis of the two-dimensional inlet design and its related research provided a reference for the design of the closure shutter of the no ejecta type fixed geometry two-dimensional inlet .Next we researched and analyzed the switch of the closure shutter which is relied on the mechanical movement. The design of key parts: the design of the shutter is based on the sketch curve of the closure shutter of the inlet; the design of the draw-bar and guides is based on the opening state and closed state; the design of the sliding bottom and the baffle. Then the design of the connection of each part and the seal between the shutter and the shell is provided. The material is selected based on the strength analysis of key parts. 3D modeling and tentative assembly is finished in UG.
Keywords Two-dimensional inlet Closure shutter Structural design
目 次
1 引言 1
1． 1 弹用进气道研究背景 1
1． 2 弹用进气道概述 3
1.2.1 进气道的分类 3
1.2.2 超声速进气道的形式 4
1． 3 国内外弹用进气道研究现状 5
1． 4 本次设计任务要求及设计内容 7
1.4.1 任务要求 7
1.4.2 设计内容 8
2 进气道总体设计 9
2. 1 进气道主要参数的确定 9
2. 2 各零件材料选取 9
2.2.1 板类零件的选材 9
2.2.2 其他零件的选材 11
2. 3 进气道本体 12
2.3.1 系统基本组成 12
2.3.2 系统零件组成及布局 12
2. 4 边界层抽吸腔设计 16
3 进气道主要零件结构设计 17
3. 1 进气道壳体设计 17
3.1.1 拟定设计方案 17
3.1.2 方案优劣分析及选择 17
3.1.3 外罩结构设计 17
3. 2 堵盖设计 18
3. 3 导轨设计 19
4 零件连接设计 20
4. 1 底板与压缩面和扩张段结构的连接 20
4.1.1 拟定连接方案 20
4.1.2 方案分析及选择 21
4.1.3 螺钉选择 21
4. 2 底板与进气道外罩的连接 22
4.2.1 连接方式的选择 22
4.2.2 焊接种类选择 22
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