內容簡介
本書重點介紹基於SolidWorks軟體進行機構數字仿真分析的思路和方法,主要包括基於Motion外掛程式的運動學、動力學仿真分析以及基於Simulation外掛程式的結構有限元分析。 本書採用剃廈兵項目驅動方式,以項目為載體,融合數字仿真的相關理論和技術。每個項目都包含項目說明、預備知識、項目實道殃虹施和項目總結,讀者可通過實踐完成學習過程。全書的20個項目是圍繞機械設計行業的需要,對典型任務做適當簡化編寫而成的,具有較好的套用示範作用。 本書可作為套用型本科及高職高專院校
機械類專業的教材,也可作為企業技術人員的參考用書。
圖書目錄
項目1
牛頭刨床驅動機構建模與仿真 ···············001
一、項目說明 ···················001
二、預備知識 ·····················002
1. 運動學與動力學分析概述 ··············002
2. 運動學與動力學分析的基本概念 ············002
3. 運動學與動力學分析的主要流程 ············003
三、項目習承戒匪實施 ···················004
1. 繪製
牛頭刨床驅動機構運動簡圖 ············004
2. 依據機構運動簡圖自頂向下建模 ············004
3. 依據運動副特點裝良承堡配模型 ························007
4. 對機構進行運動學仿真分析 ····················010
5. 對機構進行動力學仿真分析 ····················013
四、項目總結···············014
項目2 機械手夾持機構建模與仿真················015
一、項目說明 ············015
二、預備知識 ·············015
1. 各種馬達運動規律的選用與設定 ····015
2. 接觸問題 ·············016
3. 各種分析結果查詢 ···························017
三、項目實施 ························017
1. 繪製機械手夾持器機構運動簡圖 ····017
2. 利用自頂向下的方法建模 ···············017
3. 為機械手夾持器機構模型添加裝配配
合關係························019
4. 機械手夾持機構運動學仿真 ············020
5. 機械手夾持機構動力學仿真 ············022
四、項目總結 ·················024
項目3 複合輪系傳動機構設計與仿欠達真 ················025
一、項目說明 ·······················025
二、預備知識 ·····················025
1. 常用齒輪傳動類型 ···························025
2. 定軸輪系與周轉輪系 ·······················026
3. 行星輪系與差動輪系 ·······················026
三、項目實施 ····················026
1. 準備輪系所需員嬸棗要的所有齒輪 ············026
2. 裝配外嚙合
圓柱齒輪 ·······················029
3. 裝配內嚙合圓柱齒輪 ·······················030
4. 裝配行星輪系 ····················033
5. 裝配錐齒輪 ··················037
6. 增加傳動軸和機架 ···························040
7. 複合輪系運動分析 ···························041
四、項目總結 ···············································044
項目4 奧氏儀表機構設危譽舉埋計與仿真·················045
一、項目說明 ···············································045
二、預備知識 ···············································045
1. 約束映射 ···········································045
2. 機械配合的使用 ·······························046
3. 彈簧與阻尼 ·······································046
4. 運動學系統與動力學系統 ···············047
三、項目實施 ···············································047
1. 繪製奧氏儀表機構運動簡圖 ············047
2. 依據機構運動簡圖自頂向下建模 ····047
3. 依據運動副特點裝配模型 ···············050
4. 對機構進行運動學仿真分析 ············055
5. 對機構進行動力學仿真分析 ············057
四、項目總結 ···············································060
項目5 凸輪送料機構設計與仿真·························061
一、項目說明 ···············································061
二、預備知識 ···············································062
1. 利用函式編製程序定義複雜規律的運
動或力 ·······················062
2. 利用軌跡跟蹤設計凸輪輪廓 ············064
三、項目實施································064
1. 繪製凸輪送料機構運動簡圖 ············064
2. 創建凸輪送料機構主要構件模型 ····064
3. 裝配凸輪送料機構模型 ···················067
4. 通過運動仿真分析求出凸輪輪廓
曲線 ·················································071
5. 創建凸輪模型並進行運動學分析 ····073
四、項目總結 ····················074
項目6
槽輪機構設計與仿真·························075
一、項目說明 ···························075
二、預備知識 ·····························075
1. 常見的槽輪機構 ·······························075
2. 槽輪機構等效分析方法 ···················076
三、項目實施·······························076
1. 槽輪機構建模 ···································076
2. 裝配槽輪機構 ···································078
3. 槽輪機構運動學仿真 ·······················079
4. 槽輪機構動力學仿真 ·······················080
5. 基於動力學分析結果進行結構
分析 ·····················081
四、項目總結······················083
項目7
曲柄壓力機力平衡分析與冗餘處理 ················084
一、項目說明 ····························084
二、預備知識 ·············································085
1. 曲柄壓力機靜力平衡計算 ···············085
2. 冗餘配合 ···········································086
三、項目實施 ···············································087
1. 繪製曲柄壓力機機構簡圖 ···············087
2. 曲柄壓力機三維建模 ·······················087
3. 裝配曲柄壓力機 ·······························090
4. 曲柄壓力機動力學分析 ···················091
四、項目總結 ······························094
項目8 雙搖桿自動供料設備執行機構設計 ··············095
一、項目說明 ···············································095
二、預備知識 ···············································096
三、項目實施 ···············································096
1. 創建機架和工件模型 ·······················096
2. 根據工件大小建立接盤模型 ············097
3. 利用圖解法設計連桿 ·······················097
4. 建立整套裝配模型 ···························098
5. 裝配各個構件 ···································100
6. 執行運動仿真 ···································102
四、項目總結 ···············································104
項目9 雙搖桿自動供料設備驅動機構設計 ················105
一、項目說明 ·····················105
二、預備知識 ···················105
X
SolidWorks 數字仿真項目教程
1. 基於事件的運動仿真 ·······················105
2. 事件的定義 ·······································106
三、項目實施··························107
1. 利用圖解法計算驅動機構的尺寸 ····107
2. 驅動機構構件建模 ···························107
3. 驅動機構裝配 ···································109
4. 驅動機構仿真 ···································110
5. 利用事件定義實現自動化設計
建模 ····················· 111
四、項目總結 ·····················112
項目10
剪式舉升機機構最佳化設計 ··················· 113
一、項目說明 ···························113
二、預備知識 ··························113
三、項目實施 ··············································114
1. 建立各個構件模型 ···························114
2. 裝配整套機構 ···································115
3. 執行動力學仿真 ·······························117
4. 進行最佳化設計 ···································118
四、項目總結 ···············································120
項目11 支架結構靜應力分析 ····································· 121
一、項目說明 ···············································121
二、預備知識 ···············································122
1.
有限元分析概述 ·······························122
2. 有限元分析典型流程 ·······················122
3. 有限元分析及精度控制 ···················122
4. 實體單元特性 ···································124
5. 應力狀態和結果評估 ·······················126
三、項目實施 ···············································126
1. 處理幾何模型 ···································126
2. 建立分析算例 ···································127
3. 設定材料參數 ···································128
4. 設定約束關係 ···································128
5. 添載入荷 ···········································129
6. 初步劃分格線並試算 ·······················130
7. 利用圖解工具查詢分析結果 ············131
8. 評估並修正分析模型 ·······················132
9. 細化格線獲得精確結果 ···················133
10. 導出分析報告 ·································135
四、項目總結 ···············································135
項目12 水槽的結構分析 ······························· 136
一、項目說明 ···············································136
二、預備知識 ···············································136
1. 殼單元特性 ·······································136
2. 實體轉為殼體 ···································137
3. 單元質量的評估 ·······························137
三、項目實施 ···············································139
1. 創建水槽模型並劃分實體格線進行評
估 ······················································139
2. 創建水槽模型面體並劃分格線
評估 ··················································139
3. 水槽殼體模型分析前處理 ···············140
4. 結果分析 ···········································142
四、項目總結 ···············································145
項目13 梁的結構分析··············146
一、項目說明 ···············································146
二、預備知識 ···············································147
1. 梁的剪力圖和彎矩圖 ·······················147
2. 梁單元與實體單元的特性分析 ········148
3. 各類約束條件 ···································148
三、項目實施 ···············································150
1. 創建梁實體模型 ·······························150
2. 創建分析算例並前處理 ···················151
3. 分析結果後處理 ·······························154
四、項目總結 ···············································155
XI
項目14 料斗的結構分析 ···········156
一、項目說明 ·················156
二、預備知識 ··············································156
1. 全局接觸 ···········································156
2. 局部接觸 ···········································157
3. 結構分析中各種載荷 ·······················158
4. 軟彈簧與慣性卸除 ···························158
三、項目實施 ···············································159
1. 創建料斗分析幾何模型 ···················159
2. 分析前處理 ·······································160
3. 分析及後處理 ···································162
四、項目總結 ···············································164
項目15 氣動夾具的結構分析 ····························165
一、項目說明 ···············································165
二、預備知識 ···············································166
三、項目實施 ···············································169
1. 模型簡化處理 ···································169
2. 分析前處理 ·······································170
3. 分析及後處理 ···································174
四、項目總結 ···············································175
項目16 齒輪嚙合非線性分析 ····················176
一、項目說明 ···············································176
二、預備知識 ···············································176
1. 模型的2D 簡化 ································176
2. 有限元中的非線性問題 ···················177
3. 非線性問題算法 ·······························178
4. 增量控制技術 ···································178
三、項目實施 ···············································179
1. 分析模型簡化 ···································179
2. 分析前處理 ·······································180
3. 查閱分析結果 ···································182
四、項目總結 ···············································183
項目17 氣缸活塞桿屈曲分析 ······················184
一、項目說明 ···············································184
二、預備知識 ···············································185
1. 壓桿穩定性的概念 ···························185
2. 屈曲分析方法 ···································185
三、項目實施 ···············································186
1. 氣缸活塞桿靜應力分析 ···················186
2. 氣缸活塞桿屈曲分析 ·······················187
四、項目總結 ···············································190
項目18
工具機床身動態特性分析 ··············191
一、項目說明 ···············································191
二、預備知識 ···············································192
1. 模態分析 ···········································192
2. 諧波分析 ···········································192
三、項目實施 ···············································193
1. 進行模態分析 ···································193
2. 進行諧波分析 ···································196
四、項目總結 ···············································198
項目19 軸的疲勞分析 ·················199
一、項目說明 ···············································199
二、預備知識 ···············································199
1. 疲勞的概念 ·······································199
2. 高周疲勞和低周疲勞 ·······················200
3. 基於應力- 壽命的疲勞分析 ············200
4. 應力- 壽命(S-N)曲線插值 ··········201
SolidWorks 數字仿真項目教程
5. 疲勞分析中的主要參數 ···················202
三、項目實施 ···············································203
1. 受力分析和軸的建模 ·······················203
2. 對軸進行靜應力分析 ·······················204
3. 對軸進行疲勞分析 ···························205
四、項目總結 ···············································207
項目20 工業機械手結構最佳化設計 ···························································································208
一、項目說明 ···············································208
二、預備知識 ···············································209
三、項目實施 ···············································209
1. 機械手靜應力結構分析 ···················209
2. 創建最佳化設計算例 ···························213
四、項目總結 ···············································215
參考文獻