تحقیقات موتور

تحقیقات موتور

حل تحلیلی و تجربی موتور هوای فشردة دوطرفه با سازوکار اهرم لولایی و میل‌‏لنگ مشترک

نوع مقاله : مقاله پژوهشی

نویسندگان
گروه مهندسی مکانیک، دانشگاه ملی مهارت، تهران، ایران
10.22034/er.2026.2077052.1116
چکیده
در این مقاله یک موتور جدید که قابلیت فعالیت در دو وضعیت موتور هوای فشرده و تنجار را دارد، بررسی شد. در این سازه دو سمبة‏ رفت و برگشتی متصل به هم و در دو موقعیت مخالف به یکدیگر وجود دارد که در دو استوانه‏ مجزا فعالیت دارند. در سازوکار انتقال توان نیز از یک اهرم لولایی شکل مشترک استفاده شده است به طوریکه به عنوان رابط مابین میل‌‏لنگ و سمبه‏‌ها عمل می‌کند. این موتور ابتدا طراحی و پس از تایید تحلیل تنش قطعات در نرم‌‏افزار، ساخته و سپس مورد دیتابرداری قرار گرفت. داده‌‏های این موتور با استفاده از حسگرها و تجهیزات برقی جمع‌آوری و تجزیه و تحلیل شده است. نتایج این تحقیق شامل تحلیل تجربی، تحلیل ترمودینامیکی و شبیه‌سازی است. در نتایج تجربی به دست آمده از عملکرد سازوکار در قالب یک موتور تولید توان، در فشار نسبی 5 بار، دور متوسط خروجی موتور 190 دور در دقیقه و تولیدی موتور برابر با 870 وات اندازه‏‌گیری شد. نتایج تحلیل موتورتنجار از طریق روابط استخراج شده، حل عددی و مدل‏‌سازی، شبیه‌‏سازی در نرم‌‏افزار و داده‏‌های تجربی نیز نشان‌دهنده همپوشانی و سازگاری نسبی تحلیل موتورتنجار است.
کلیدواژه‌ها

عنوان مقاله English

Experimental evaluation and performance analysis of a bidirectional compressed air engine with a common crankshaft and connecting rods

نویسندگان English

Mehdi Mostaghelchi
Mohammad Omidpanah
Department of Mechanical Engineering, Technical and Vocational University (TVU), Tehran, Iran
چکیده English

In this paper, a novel engine capable of operating in two modes—as a compressed air engine and as a compressor—is analyzed and investigated. In this configuration, two reciprocating pistons are arranged opposite each other and operate in two separate cylinders. A common connecting rod is also employed in the power transmission mechanism between the crankshaft and the pistons. In the compressed air engine mode, mechanical rotary valves are used to control the fluid flow into the engine, and the power generated by the pistons is transmitted to the common connecting rods and the crankshaft. The engine was first designed; after the stress analysis of its components was verified in software, a prototype was manufactured, and data were then collected and analyzed using sensors and electronic equipment. The results of this research comprise experimental analysis, thermodynamic analysis, and simulation. According to the experimental results obtained from the operation of the mechanism as a power generation engine, the average output speed of the engine at a gauge pressure of 5 bar is 190 rpm, and the engine output power is 870 W. The results obtained from the derived analytical relations, the model solution, the software simulation, and the experimental data also show good agreement and consistency in the engine analysis.

کلیدواژه‌ها English

Double-Piston Engine
Mechanical Rotary Valve
Common Crankshaft
Bidirectional Compressed Air Engine
Reciprocating Air Engine
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  • تاریخ دریافت 02 آذر 1404
  • تاریخ بازنگری 15 بهمن 1404
  • تاریخ پذیرش 13 مرداد 1405