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دانلود رایکان مقاله انگلیسی ISI با موضوع طراحی و تولید ایزولاتور الاستومتریک تقویت شده فیبری برای ایزولاسیون وابسته به زمین لرزه

عنوان فارسی مقاله:

طراحی و تولید ایزولاتور الاستومتریک تقویت شده فیبری برای ایزولاسیون وابسته به زمین لرزه

عنوان انگلیسی مقاله:

Design and manufacturing of fiber reinforced elastomeric isolator for seismic isolation

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بخشی از مقاله انگلیسی :

4. Test results and discussion

4.1. Test results

In order to investigate the effect of fiber reinforcement in the elastomer different kinds of experiments were carried out. First, four kinds of nylon fiber reinforced elastomer were compared. Second, the effects of horizontal and vertical characteristics were investigated for glass FREI and carbon fiber elastomeric isolator. The third, the mechanical characteristics of carbon reinforced elastomeric isolator and SREIs were compared.

4.2. Case 1: comparison of horizontal and vertical test results

First of all, we have to inquire into the characteristics of the nylon fiber and rubber. In this case, four kinds of fibers are investigated, for example, of nylon fibers. The nylon fibers used to evaluate the mechanical characteristics of rubber and fiber layers are Polyester-200, Nylon-200, FIBP-01 and FIBP-05. Fig. 3 shows vertical stiffness versus maximum vertical load with four kinds of fibers. Fig. 4 shows shear modulus versus elastomer thickness with three kinds of fibers.

The vertical stiffness of the Nylon-200 shown in Fig. 3 has better efficiency than those of other fibers. The vertical stiffness of Nylon-200 reinforced elastomeric isolator becomes almost linear to maximum vertical load. Also, the stiffness characteristic of Polyester-200. Nylon-200, FIBP-01, and FIBP-05 shows similar trends of vertical stiffness with increase maximum vertical load. Shear modulus results as shown in Fig. 4 shows that the shear modulus of FIBP-01 is higher than that of Nylon-200 and Polyester200. The shear modulus variation with an increase of elastomer thickness of Nylon-200 and Polyester-200 is almost the same.