پایان نامه شناسایی بار وارد شده به یک ورق با در نظر گرفتن اثرات میرایی

فهرست:

فصل اول: مقدمه                                                                              1

فصل دوم: پیشینه تحقیق                                                                            7

2-1- مروری بر تحقیقات گذشته                                                 9

2-2- هدف                                                                         13

فصل سوم: تحلیل معکوس                                                                  15

3-1- مفاهیم اساسی تحلیل معکوس                                            17

3-2- تحلیل معکوس و هموارسازی (تیخونوف)                                 21

3-3- معادلات حاکم بر تغییر فرم دینامیکی ورق با درنظر گرفتن ضریب میرایی                                                                                                     23     

فصل چهارم: روش انجام تحقیق                                                            27

          4-1- روش انجام تحلیل معکوس                                                 29

4-2- شناسایی بار دینامیکی                                                      30

4-3- ماتریس حساسیت                                                           34

4-4- محاسبه ضریب هموارسازی                                                          35

4-5- هموارسازی ثانویه                                                           35

4-6- شناسایی محل اثر نیرو                                                      37

فصل پنجم: مفاهیم اندازه­گیری با کرنش­سنج                                            43

5-1- مقدمه                                                                        45

5-2- محاسبه کرنش                                                               50

5-3- رز کرنش                                                                    54

5-4- گونه­های مختلف پل وتستون                                              56

5-5- متعادل کردن پل وتستون                                                  59

5-6- کالیبره کردن                                                                 62

5-7- مفاهیم تقویت‌کننده­ها                                                      64

5-8- انواع نویز                                                                     68

5-9- سیستم ثبت داده و مکانیزم اندازه­گیری کرنش در این پایان­نامه       69

فصل ششم: مثال­های حل شده                                                             73

          6-1- مقدمه                                                                        75

6-2- مثال­های مدل­سازی شده جهت محاسبه توزیع زمانی نیرو با نرم ­افزار انسیس                                                                                                  75     

6-3- مثال­های مدل­سازی شده جهت شناسایی محل اثر نیرو با نرم­ افزار انسیس                                                                                                     93

6-4- مثال­های محاسبه توزیع زمانی نیرو با نتایج آزمایشگاهی                106

فصل هفتم: نتیجه­گیری و پیشنهادات                                                      121

فهرست منابع                                                                       126

چکیده به زبان انگلیسی                                                            141

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