In this paper, we suggest an efficient method, based on the well-known multi-step differential transform method to considerably reduce the number of arithmetic operations of differential transform method. The proposed ...

In this paper, the free vibration analysis of non-uniform rotating Euler–Bernoulli beam is

carried out. It is assumed that the beam has exponentially decaying circular cross-section.

In order to solve the ...

The accurate dynamic analysis of concrete arch dams relies heavily on employing a three-dimensional semi-infinite fluid element. The usual method for calculating the impedance matrix of this fluid hyper-element is dependent ...

در این مقاله، با به کارگیری روش اجزای مرزی س هبعدی که توانایی مدل سازی هر نوع هندسه دلخواه دره سد قوسی را داراست، ماتریس امپدانس سنگ پی که شامل اثرات جرم، سختی و میرایی آن می باشد به دست می آید. در ادامه با بهره گیری از ...

This article deals with the determination of the static displacement function of an Euler-Bernoulli beam with two guided supports. To this end, the Green's function method is employed and exact solution is obtained. The ...

A new modal technique is proposed for dynamic analysis of concrete arch dam-reservoir systems in frequency domain. The approach relies on the new mode shapes that are entitled "ideal-coupled modes''. These modes are employed ...

The polar finite element is utilized to examine the dynamic characteristics of the horizontal cylindrical

shells taking into account sloshing effect. The proposed method is developed by integrating the structural ...