دانلود مقاله ISI انگلیسی شماره 115546
کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
115546 2018 13 صفحه PDF سفارش دهید 6905 کلمه
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Experimental validation of tape springs to be used as thin-walled space structures
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Journal of Sound and Vibration, Volume 419, 14 April 2018, Pages 558-570

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چکیده انگلیسی

In this study, we present on-earth experimental validations, as a starting point to study the response of a tape spring as a representative of thin-walled flexible structures under static and vibrational loading. Material parameters of tape springs in a singly (straight, open cylinder) and a doubly curved design, are compared to each other by combining finite element calculations, with experimental laser vibrometry within a single and multi-stage model updating approach. While the determination of the Young's modulus is unproblematic, the damping is found to be inversely proportional to deployment length. With updated material properties the buckling instability margin is calculated using different slenderness ratios. Results indicate a high sensitivity of thin-walled structures to miniscule perturbations, which makes proper experimental testing a key requirement for stability prediction on thin-elastic space structures. The doubly curved tape spring provides closer agreement with experimental results than a straight tape spring design.

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پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.