نوع مقاله : علمی- ترویجی

نویسنده

استادیار ،گروه مهندسی مکانیک ، واحد نجف آباد، دانشگاه آزاد اسلامی ، نجف آباد ، ایران

چکیده

آزمون ارتعاشات زمینی یکی از تست­های استاندارد سازه­ای الزامی برای هواپیماهای مسافری در آستانه تولید است. این آزمون با هدف استخراج مدل تجربی دینامیکی سازة هواپیما اجرا می­شود. فرآیند اجرای این آزمون شامل برنامه­ریزی آزمون، آماده­سازی سازه، داده­برداری و استخراج پارامترهای دینامیک سازه از داده­های تست است. در مطالعه حاضر، روند اجرایی عملی هریک از مراحل تشریح می‌شود. با توجه به ابعاد و پیچیدگی این آزمون، تکنیک­ها، سخت افزارها و نرم افزارهای خاصی مورد نیاز می­باشد که مورد بررسی قرار گرفته است. در این مقاله تجربیات جهانی اجرای این آزمون به اختصار مطرح شده است. در نهایت، چیده­مانی نوعی آزمون ارتعاشات زمینی برای یک هواپیمای پهن پیکر معرفی و تشریح شده است. ‌‌

کلیدواژه‌ها

عنوان مقاله [English]

Implementation of Ground Vibration Test (GVT) on Large Aircrafts

نویسنده [English]

  • Mehdi Salehi

Assistant Professor, Department of Mechnanical Enginnering, Najafabad Branch Islamic Azad University, Najafabad, Iran

چکیده [English]

Ground vibration test (GVT) is one of the standard structural tests required for designed passenger aircrafts. This test is performed to derive the experimental dynamical model of aircraft structure. The process of executing this test involves test planning, structural preparation, data gathering, and extraction of dynamic parameters from the test data. In the present study, the practical implementation process of each step is described. Given the size and complexity of this test, certain techniques, hardware, and software are to be investigated. The global experience of performing this test is briefly discussed. Finally, a typical setup for a ground vibration test of a large aircraft is introduced and described. ‌‌

کلیدواژه‌ها [English]

  • Ground Vibrations
  • Test
  • Aircraft
  • Aeroelasticity
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