تأثير عامل تخامد الضغط على طيف الاستجابة لحمولة الانفجار

Authors

  • حنان حسين

Abstract

في هذا البحث تم التطرق إلى التابع الأسي لحمولة الانفجار, وتعريف عامل تخامد الضغط في هذا التابع (a). بعد ذلك تمت دراسة أربعة توابع لحمولة الانفجار بأربع قيم مختلفة لعامل تخامد الضغط, وذلك من أجل جملة ذات درجة حرية واحدة غير مخمدة, حيث تم وضع معادلة الحركة وحلها. وباستخدام برنامج MATLAB, ومن أجل كل تابع رسمت العلاقة بين () وبين t/T. ومن ثم رسمت أطياف الاستجابة لهذه التوابع, وتمت مقارنة الأطياف الخاصة بالتوابع الثلاث الأخيرة بالطيف الخاص بالتابع الأول والذي يمثل الشكل المثلثي لحمولة الانفجار.

وخلص البحث إلى أنه من أجل مجال معين ﻠa يمكن وبتقريب مقبول استخدام طيف الاستجابة الخاص بالحمولة المثلثية, لكن بعد ذلك المجال يفضل استخدام أطياف الاستجابة للحمولة الأسية.

This research discusses the exponential function of the explosion load and the pressure decay factor in this function (a). After that, four functions with four different values of the pressure decay factor are studied, and that is for the un-damped SDOF system, where the equation of motion is formed and solved. Then, using MATLAB software for every function, the relationship between () and t/T is plotted, and that enables plotting the response spectrum for each one. Moreover, a comparison between the spectra of the last three functions with the first one that describes the triangular explosion load is drawn. This research has concluded that for a certain range of (a), it is possible, and with acceptable approximation, to use the spectra of triangular load, but beyond that it is better to use the spectra of exponential load.

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Published

2014-04-15

How to Cite

1.
حسين ح. تأثير عامل تخامد الضغط على طيف الاستجابة لحمولة الانفجار. Tuj-eng [Internet]. 2014Apr.15 [cited 2024Nov.23];36(2). Available from: https://journal.tishreen.edu.sy/index.php/engscnc/article/view/853

Issue

Vol. 36 No. 2 (2014): العلوم الهندسية

Section

Articles

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