نوع مقاله : علمی- ترویجی
نویسنده
استادیار، پژوهشگاه هوافضا، وزارت علوم تحقیقات و فناوری، تهران، ایران
چکیده
افزایش تعداد فضاپیماهای آماده پرتاب سبب نیاز به کاهش وزن، حجم و هزینه سخت‌افزارها و زیرسیستمهای آنها شده است. همچنین، این امر سبب نیاز به کاهش وزن، حجم و هزینه سخت‌افزارها و زیرسیستمهای آنها شده است. یکی از راهکارهای رفع این نیازمندی‌ها، استفاده از مکانیزمهای بازشونده در سازههای فضایی است. ویژگی و کاربردهای استفاده از این مکانیزمها با بزرگتر شدن فضاپیماها افزایش مییابد که سبب توسعه فناوری برای سیستمهای بزرگتر نیز خواهد شد. از جمله پرکاربردترین مکانیزمهای بازشونده فضایی میتوان از آرایههای خورشیدی، آنتنهای مخابراتی، بوم‌های گرادیان جاذبه، بادبانهای خورشیدی نام برد. در این مقاله، انواع مکانیزمهای حرکتی با تمرکز بر آرایههای خورشیدی، روشها و تجهیزات باز شدن آنها پس از قرار گرفتن در مدار و مزایا و معایبشان بحث و بررسی شده است.
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