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Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering
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Shahsavari, M., Asgari, M. (2638). Optimization of electronic boards equipped with the BGA package to improve the response in random vibration. Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering, 10(1), 701-710.
Milad Shahsavari; M. Asgari. "Optimization of electronic boards equipped with the BGA package to improve the response in random vibration". Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering, 10, 1, 2638, 701-710.
Shahsavari, M., Asgari, M. (2638). 'Optimization of electronic boards equipped with the BGA package to improve the response in random vibration', Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering, 10(1), pp. 701-710.
Shahsavari, M., Asgari, M. Optimization of electronic boards equipped with the BGA package to improve the response in random vibration. Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering, 2638; 10(1): 701-710.

Optimization of electronic boards equipped with the BGA package to improve the response in random vibration

Article 11, Volume 10, Issue 1 - Serial Number 28, Winter 2017, Page 701-710  XML PDF (799.1 K)
Document Type: Persian
Authors
Milad Shahsavari email 1; M. Asgari2
1MSc Student, Department of Islamic Azad University, Tehran North Branch, Tehran, Iran
2- Assistant Professor, Department of K.N.TOOSI University of technology, Tehran, Iran
Abstract
 
In this paper deflection and free vibration of sandwich panel is studied. The core of Sandwich panels is made of hexagonal honeycomb and faces are made of two different materials of Carbon Fiber Reinforced Plastic and K-aryl/epoxy covering. The governing equations are deduced from the First order Sheer Deformation Theory (FSDT) and they are solved using Generalized
Differential Quadrature Method (GDQM). The classical method in the references is used to verify the DQ method and to show that the applied GDQM method has a good results with compared to the references. Deflection of sandwich panel is investigated with two different load types. Finally natural frequency for the first 4 modes and the two different faces materials are calculated and the effect of various lengths to core thickness ratios and faces to honeycomb core thickness ratios are studied. Further, the effect of foundation stiffness coefficient on deflection and natural frequency are showed.
 
Keywords
Sandwich panel; vibrations; differential quadrature; Honeycomb
References

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[2] Da Yu a, Abdullah Al-Yafawi, Tung T. Nguyen, Seungbae Park, Soonwan Chung ,High-cycle fatigue life prediction for Pb-free BGA under random vibration loading, Microelectronics Reliability, 2011, pp. 1-3.

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[8] Ying Ding, RuyuTian, XiuliWang, Chunjin Hang, FangYu, Ling Zhou, XiangangMeng, Yanhong Tian, Coupling effects of mechanical vibrations and thermal cycling on reliability of CCGA solder joints, 2015, pp. 1-2.

 

 

 

 

 

 

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