مقایسه عملکرد تیغه کامپوزیت پلیمر تقویت شده با الیاف (FRP) با تیغه فولادی مورد استفاده در گاوآهن قلمی

نوع مقاله : مقاله پژوهشی انگلیسی

نویسندگان

محمد رحمتیان ¹

سید حسین کار پرورفرد ¹

محمد امین نعمت اللهی ¹

احمد شریفی مالواجردی ²

¹ بخش مهندسی بیوسیستم، دانشکده کشاورزی، دانشگاه شیراز، شیراز، ایران

² مؤسسه تحقیقات فنی و مهندسی کشاورزی، سازمان تحقیقات، آموزش و ترویج کشاورزی، کرج، ایران

https://doi.org/10.22067/jam.v12i1.81980

چکیده

در سراسر دنیا، کشاورزان ادوات مختلفی را برای خاک‌ورزی انتخاب می‌کنند که این به نوع محصول، نوع خاک، میزان باقی‌مانده گیاه از محصول قبلی و غیره بستگی دارد. انتخاب ابزار خاک‌ورزی نیز تحت تأثیر در دسترس بودن ابزارآلات، توان مصرفی، هزینه‌های کارگری و سرمایه‌های موجود است. در این تحقیق، نیروی کششی، سطح مقطع به‌هم خوردگی خاک، شاخص مخروط خاک و مصرف سوخت در نظر گرفته شد. اثرات زاویه حمله، سرعت پیشروی و رطوبت خاک بر پارامترهای نام برده بررسی شد. در این تحقیق، مقایسه‌ای بین عملکرد تیغه کامپوزیت پلیمر تقویت شده با الیاف (FRP) و تیغه فولادی معمولی انجام شد. آزمایش‌ها بر اساس آزمایش کرت‌های دو بار خرد شده بر پایه‌ی طرح کاملاً تصادفی، انجام شد. عوامل رطوبت خاک، زاویه حمله و سرعت پیشروی در سه سطح گنجانده شد. سه سطح برای رطوبت خاک (9.3، 13، 16.7%)، زاویه حمله (20، 30، 40 درجه) و سرعت پیشروی (3، 5، 7 کیلومتر در ساعت) در نظر گرفته شد. تیغه کامپوزیت FRP به‌طور متوسط در محدوده مورد نظر برای متغیرها باعث کاهش نیروی کششی، مصرف سوخت و شاخص مخروط خاک به‌ترتیب 14.97%، 16.63% و 35.08% نسبت به تیغه فولادی شده است. همچنین، سطح به‌هم خوردگی خاک ایجاد شده توسط تیغه کامپوزیت FRP،4.93% بیشتر از تیغه فولادی بود. با توجه به نتایج این مطالعه، مشخص است که تیغه کامپوزیت FRP عملکرد بهتری نسبت به تیغه فولادی معمولی برای متغیرهای آزمون فوق دارد. با توجه به این‌که کامپوزیت FRP از فولاد ارزان‌تر است، این امر منجر به صرفه‌جویی قابل‌توجهی در تولید تیغه کامپوزیت FRP مورد استفاده در گاوآهن چیزل و ابزارهای خاک‌ورزی مرکب می‌شود که از نظر اقتصادی برای کشاورز و تولیدکننده مقرون به صرفه است.

کلیدواژه‌ها

تیغه کامپوزیت FRP

تیغه فولادی

زاویه حمله

سرعت پیشروی

میزان رطوبت خاک

20.1001.1.22286829.1401.12.1.1.1

موضوعات

• مهندسی سازه و مواد برای سامانه‌های کشاورزی

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Open Access

©2020 The author(s). This article is licensed under Creative Commons Attribution 4.0 International License (CC BY 4.0), which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source.

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