طراحی و شبیه‌سازی میکروپهپاد با استفاده از بهینه‌سازی توپولوژی و فناوری ساخت افزودنی

نوع مقاله : مکانیک جامدات

نویسندگان

1 نویسنده مسئول: استادیار دانشکده مهندسی و پرواز، دانشگاه افسری امام علی، تهران، ایران

2 استادیار دانشکده مهندسی و پرواز، دانشگاه افسری امام علی، تهران، ایران

چکیده

گسترش قابلیت‌ها و توسعه روزافزون فناوری ساخت افزودنی، سبب کاهش هزینه‌ها در تولید محصولات سفارشی‌شده است و همچنین امکان تولید ساختارهای پیچیده برای میکروپهپادها را فراهم کرده است. وزن عموماً یکی از اصلی‌ترین ویژگی‌های طراحی میکروپهپادها است، اما اغلب به‌عنوان معاوضه‌ای در برابر دوام و سایر قابلیت‌ها می‌باشد. بااین‌حال، ساختارهای فوق سبک می‌توانند با استفاده از ساخت افزودنی و بهینه‌سازی توپولوژی، بدون به خطر انداختن یکپارچگی سازه، تحقق یابند. این مطالعه به بررسی استفاده از این دو فناوری برای طراحی و ساخت میکروپهپادهای سبک‌وزن بهینه‌سازی شده می‌پردازد. طراحی مولد با استفاده از الگوریتم‌های هوش مصنوعی، بهینه‌سازی توپولوژی را برای توزیع بار بهینه انجام می‌دهد و کارایی خود را در شبیه‌سازی‌های مختلف نشان داده است. پژوهش حاضر به پیچیدگی‌های طراحی میکروپهپاد و وابستگی متقابل بین هندسه، روش ساخت و مواد پرداخته است. در این پژوهش، قاب میکروپهپاد از نوع مربعی، با روش چاپ سه‌بعدی رسوب ذوب‌شده (FDM) و فیلامنت PETG ساخته شد. خواص مطلوب ماده انتخاب‌شده از طریق آزمایش مکانیکی و بررسی مطالعات پیشین مشخص گردید. سپس، بهینه‌سازی توپولوژی برای ایجاد ساختار بدنه سبک‌وزن با پیکربندی X انجام گرفت. طرح بهینه‌شده چاپ سه‌بعدی شد و از طریق آزمون بارگذاری برای اعتبارسنجی نتایج شبیه‌سازی المان محدود ارزیابی گردید. نتایج آزمایش‌ها و شبیه‌سازی‌ها نشان داد که ترکیب بهینه‌سازی توپولوژی و چاپ سه‌بعدی می‌تواند به‌طور ایمن و قابل‌اعتماد برای طراحی و تولید سریع میکروپهپادها به کار رود. مدل بهینه‌سازی شده نهایی که توسط ساخت افزودنی تولید شد، قادر به تحمل وزنی معادل 100 برابر جرم خود بود که نشان‌دهنده بهینه‌تر بودن این مدل نسبت به طرح‌های مطالعات پیشین است.

تازه های تحقیق

  • ساختارهای فوق سبک را می‌توان با استفاده از بهینه‌سازی توپولوژی طراحی و توسط ساخت افزودنی تولید نمود.
  • برتری خواص ماده PETG برای ساخت بدنه میکروپهپاد از طریق آزمایش‌های تجربی حاصل شد.
  • مدل‌بهینه‌سازی‌شده بلند کردن وزنه‌ای معادل 100 برابر جرم خود را دارد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Design and Simulation of Micro-UAV using Topology Optimization and Additive Manufacturing Technology

نویسندگان [English]

  • Seyed Mostafa Mirtabaei 1
  • Aliasghar Naderi 2
1 Corresponding author: Assistant Professor, Faculty of Engineering and Aviation, Imam Ali Officer University, Tehran, Iran
2 Assistant Professor, Faculty of Engineering and Aviation, Imam Ali Officer University, Tehran, Iran
چکیده [English]

The expansion of capabilities and the continuous development of additive manufacturing technology have led to a reduction in costs for custom product manufacturing and have enabled the production of complex structures for micro-drones. Weight is generally one of the primary design features of micro-drones, often considered a trade-off against durability and other functionalities. However, ultra-lightweight structures can be achieved through additive manufacturing and topology optimization without compromising structural integrity. This study examines the use of these two technologies for designing and fabricating optimized lightweight micro-drones. Generative design using artificial intelligence algorithms performs topology optimization for optimal load distribution, demonstrating its efficiency in various simulations. This research addresses the complexities of micro-drone design and the interdependence between geometry, manufacturing methods, and materials. In this study, a square-frame micro-drone was constructed using Fused Deposition Modeling (FDM) with PETG filament. The selected material's properties were determined through mechanical testing and literature review. Subsequently, topology optimization was conducted to create a lightweight body structure with an X configuration. The optimized design was 3D printed and validated through load testing to verify finite element simulation results. The experimental and simulation results indicated that the combination of topology optimization and 3D printing can be safely and reliably used for the rapid design and production of micro-drones. The final optimized model produced through additive manufacturing could withstand a load 100 times its own weight, demonstrating superior performance compared to previous designs.

کلیدواژه‌ها [English]

  • Topology optimization
  • Micro-UAV
  • Generative design
  • 3D-printing
  • Additive manufacturing


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مکانیک هوافضا
دوره 20، شماره 3 - شماره پیاپی 77
شماره پیاپی 77، فصلنامه پاییز
آذر 1403
صفحه 59-74

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  • تاریخ دریافت: 14 خرداد 1403
  • تاریخ بازنگری: 14 تیر 1403
  • تاریخ پذیرش: 30 تیر 1403
  • تاریخ انتشار: 01 آذر 1403

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