علوم و فناوری نساجی و پوشاک

علوم و فناوری نساجی و پوشاک

توسعه تجربی طرح پچینگ پیکره سامانه بالن مقید تاکتیکی

نوع مقاله : مقاله پژوهشی

نویسندگان
1 استادیار، پژوهشکده سامانه‌های حمل و نقل فضایی، پژوهشگاه فضایی ایران، تهران، ایران
2 کارشناس محقق، پژوهشکده سامانه‌های حمل و نقل فضایی، پژوهشگاه فضایی ایران، تهران، ایران
چکیده
در سامانه هوا ایست اتصال پیکره بالن به زمین از طریق یک طناب به نام افسار است که افسار از طریق چند پچینگ به بدنه بالن متصل می‌شود. پچینگ نقش بسزایی در تحمل بار و انتقال آن به پیکره بالن دارد. با توجه به پیچیدگی بسیار زیاد تحلیل تنش پچینگ، در پژوهش حاضر توسعه طراحی آن از طریق آزمون و تحلیل نتایج آن انجام گرفته است. در مرحله اول به منظور صرفه‌جویی در زمان و هزینه، نمونه‌هایی در ابعاد کوچک آماده شد. با اعمال تغییرات در نحوه اتصال طناب‌ها، نوع پارچه و چیدمان پچینگ، در نهایت طرح اولیه پچینگ در ابعاد کوچک بدست آمد. با اطمینان از طرح حاصل شده در ابعاد کوچک، در مرحله دوم پچینگ با ابعاد واقعی ساخته شده و اثر عوامل مختلف روی استحکام آن بررسی شد. سپس با تغییر در نحوه اتصال پارچه پچینگ به پارچه زمینه و دستیابی به استحکام مناسب طرح پچینگ نهایی شده و مرحله آخر با پارچه واقعی مورد استفاده در بدنه بالن مورد ارزیابی قرار گرفت. آزمون انجام شده در مرحله آخر نشان داد پچینگ طراحی شده قابلیت تحمل باری بیش از 8200 نیوتن را داراست و بار وارده بر پچینگ را با ضریب اطمینان مناسبی تحمل می‌کند.
کلیدواژه‌ها

موضوعات


عنوان مقاله English

Experimental Development of Tactical Aerostat Patching Scheme

نویسندگان English

Saeed Sarkheil 1
Ali Jafarian 2
Abolfazl Jangi 2
1 Assistant Professor, Space Transportation Research Institute, Iranian Space Research Center, Tehran, Iran
2 Researcher, Space Transportation Research Institute, Iranian Space Research Center, Tehran, Iran
چکیده English

In an aerostat, the connection of the balloon to the ground is made through a rope called a tether, which is connected to the balloon body through several patchings. Patching plays a significant role in load-bearing and transferring the load to the balloon’s hull. Due to the high complexity stress analysis on patching, this study focuses on the development of its design through testing and analyzing of the results. In the first phase, to save time and cost, small-sized samples were prepared. By making changes to the way the ropes were connected, the type of fabric used, and the arrangement of patching, the initial design of the patching was ultimately achieved. After confirming the design in small samples, in the second phase, the patching was constructed in the actual size, and the effects of various factors on its strength were investigated. Then, by changing the way the patching fabric was connected to the base fabric and achieving an appropriate strength, the final patching design was completed. The last phase was evaluated using the actual fabric used in the balloon’s body. The tests performed in the final phase showed that the designed patching has the capability to withstand loads exceeding 8200 N and can bear the applied load with appropriate safety factor.

کلیدواژه‌ها English

Tethered balloon
Patching
Fabric
Aerostat
Tensile strength
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  • تاریخ دریافت 27 آذر 1402
  • تاریخ بازنگری 18 مهر 1403
  • تاریخ پذیرش 20 آبان 1403