ارتعاشات مکانیکی ارتعاشات مکانیکی

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ارتعاشات مکانیکی

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آزاد, 2-3-1 نوسانات شامل مستهلک کننده و فاقد مستهلک کننده, 3-3-1 نوسانات خطی و غیر خطی, 4-3-1 نوسانات معین و نوسانات تصادفی, 4-1 مراحل تحلیل حرکت نوسانی یک سیستم, 5-1 حرکت هارمونیک, 6-1 حرکت تناوبی, 7-1 ترکیب فنرها, تمرینات فصل اول, فصل دوم, ارتعاشات آزاد سیستم‌های یک درجه آزادی, 1-2 مدل ارتعاشات, 2-2 معادلههای حرکت بروش نيرو: فرکانس طبیعی, 3-2 روش انرژی, 4-2 روش ریلی: جرم موثر, 5-2 اصل کار مجازی, 6-2 عامل استهلاک در یک سیستم در حال نوسان, 7-2 ساختمان مستهلک کنندههای ویسکوز, 8-2 ترکیب مستهلک کنندهها, 9-2 ارتعاشات آزاد به طور چسبنده میرا, 10-2 پاسخ به شرایط اولیه, 11-2 انرژی تلف شده در استهلاک ویسکوز, 12-2 کاهش لگاریتمی, 13-2 نوسانات آزاد با مستهلک کننده کولمب, 1-13-2 معادله ی حرکت, 2-13-2 حل معادله, مثالهای حل شده, تمرینات فصل دوم, فصل سوم, ارتعاشات واداشته هارمونیکی, 1-3 ارتعاشات واداشته هارمونیکی, 2-3 حل ارتعاش اجباری به روش دوم, 3-3 نامیزانی چرخان, 4-3 نامیزانی روتور, 5-3 لنگش شفتهای چرخان, 6-3 نیروی منتقل شده به پایه در نوسانات ماندگار, 7-3 نیروی حاصل از عدم توازن گردشی, 8-3 استفاده از اعداد مختلط در جمع و تفریق توابع هارمونیک, 9-3 تحلیل جواب پایدار به کمک اعداد مختلط (روش واکنش فرکانس (ایمپدانس)), 10-3 سیستمهای متصل به پایه متحرک, 11-3 سیستمهای با پایه الاستیک, 13-3 اندازهگیر ارتعاش, 15-3 اندازهگیر سرعت, 16-3 انحراف فاز, 18-3 ابزار اندازهگیری فرکانس, 19-3 نوسانات خود محرک و بررسی پایداری, مثالهای حل شده, تمرینات فصل سوم, فصل چهارم, ارتعاشات گذرای سیستم های یک درجه آزادی, 1-4 محاسبه انتگرال کانولوشن, 1-1-4- پاسخ در اثر ضربة واحد, 2-1-4 پاسخ در اثر تحریک عمومی, 2-4 تحریکهایی که شکل آنها در زمان های گسسته تغییر میکند, 3-4 حرکت گذرا در اثر تحریک پایه, 4-4 حلهای تبدیل لاپلاس, جدول 1-4, مثالهای حل شده, تمرینات, فصل پنجم, سیستم هایی با چند درجه آزادی, 1-5 مقدمه, 2-5 معادلات حرکت برای نوسانات واداشته, 3-5 استخراج معادلات دیفرانسیل با استفاده از اصول پایهای دینامیک, 4-5 آنالیز نوسانات آزاد سیستمی که فاقد مستهلککننده میباشد, 5-5 سیستم پیچشی, 6-5 ارتعاشات هارمونیکی واداشته, 7-5 روش تفاضل محدود برای دستگاه معادله ها, 8-5 جذب کننده ارتعاشات, 9-5 معادلات لاگرانژ, 10-5 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{"toc":[{"page":8,"title":"فصل اول"},{"page":8,"title":"تعاریف و مفاهیم اولیه در سیستم‌های ارتعاشی"},{"page":8,"title":"1-1 اهمیت مطالعه ارتعاش"},{"page":10,"title":"2-1 مفاهیم مقدماتی ارتعاش"},{"page":10,"title":"2-1-1 ارتعاش"},{"page":10,"title":"2-2-1 اجزاء اولیه یک سیستم در حال نوسان"},{"page":12,"title":"3-2-1 درجه آزادی"},{"page":12,"title":"درجه آزادی یک سیستم عبارت است از حداقل تعداد پارامترهای مستقل از هم را که برای تعیین کردن موقعیتهای تمامی قسمتهای یک سیستم در هر لحظه از زمان مورد نیاز میباشد. مطابق شکل‌های پايين به ترتیب میتوان سیستمهایی را با یک درجه آزادی، دو درجه آزادی و سه ..."},{"page":15,"title":"4-2-1 سیستمهای پیوسته و سیستمهای ناپیوسته"},{"page":15,"title":"3-1 طبقه بندی ارتعاشات"},{"page":16,"title":"1-3-1 نوسانات واداشته (اجباری) و نوسانات آزاد"},{"page":16,"title":"2-3-1 نوسانات شامل مستهلک کننده و فاقد مستهلک کننده"},{"page":16,"title":"3-3-1 نوسانات خطی و غیر خطی"},{"page":16,"title":"4-3-1 نوسانات معین و نوسانات تصادفی"},{"page":17,"title":"4-1 مراحل تحلیل 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