مد ارتعاشی موثر برای برداشت مکانیکی زیتون رقم شنگی

ماشین های کشاورزی

مقاله 3، دوره 12، شماره 1 - شماره پیاپی 23، فروردین 1401، صفحه 33-41   

نوع مقاله: مقاله پژوهشی لاتین

شناسه دیجیتال (DOI): 10.22067/jam.2021.58671.0

نویسندگان

هیوا گل پیرا^{* 1}؛ محمد لغوی²

¹گروه مهندسی بیوسیستم، دانشکده کشاورزی، دانشگاه کردستان، سنندج، ایران

²گروه مهندسی بیوسیستم، دانشگاه شیراز، شیراز، ایران

چکیده

هدف از انجام این تحقیق بهینه‌سازی عوامل طراحی ماشین‌های برداشت میوه برای برداشت موثر زیتون رقم شنگی بود. مدل جرم-فنر با یک درجه آزادی برای تعیین بسامد طبیعی و ضریب میرایی شاخه زیتون استفاده شد. یک شاخه‌تکان سوار که در آن ارتعاش از راه بازوی میل‌لنگی به شاخه و میوه انتقال می‌یافت برای ارزیابی مدهای ارتعاشی ساخته شد. به‌منظور تعیین تاثیر دامنه و بسامد ارتعاش بر میزان جداسازی میوه از شاخه یک آزمایش فاکتوریل (3×4) در قالب یک طرح کاملاً تصادفی اجرا شد. مد ارتعاشی با بسامد 10 هرتز و دامنه 80 میلی‌متر توان متوسط 92 وات را برای برداشت 95 درصد از میوه‌ها انتقال داد. برای برداشت موثر و منطبق بر استانداردهای سلامتی می‌توان از این مد ارتعاشی برای بازطراحی درخت تکان‌ها استفاده کرد.

کلیدواژه‌ها

ارتعاش؛ بسامد طبیعی؛ شاخه تکان؛ ماشین‌های برداشت میوه؛ مدل ریاضی

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