The toppling motion of a uniform rectangular block with one edge resting on a horizontal
surface and its diagonal initially vertical involves only three forces: the weight, mg, the …

The toppling motion of falling chimney stacks has been the subject of a number of studies
which address the interesting phenomenon that brick chimneys usually break well before …

This paper presents a didactic tool designed with the help of Excel spreadsheets for the
study of the simple gravitational pendulum in oscillation regime. The period of the pendulum …

In this paper we present a simple experimental set-up to study the fall of a rigid rod, which
can freely rotate around an articulated joint at the lowest point. The experimental set-up …

In a previous paper, we developed a new way to apply the Homotopy Analysis Method
(HAM) in the search for periodic orbits in dynamical systems modeled by ordinary differential …

In this paper, we present a new approach for finding periodic orbits in dynamical systems
modeled by differential equations. It is based on the Homotopy Analysis Method (HAM) but it …

Las ecuaciones diferenciales con retardo son utilizadas frecuentemente para modelar
problemas en física, ingeniería o biolog´ ıa entre otros. Estas ecuaciones son un ejemplo de …

The toppling motion of a uniform rectangular block is investigated as a function of the friction
between its pivot edge and the horizontal surface on which it rests. Initially the edge of the …

The standard harmonic balance method consists in expanding the displacement of an
oscillator as a Fourier cosine series in time. A key modification is proposed here, in which …

This paper presents a didactic tool designed with the help of Excel spreadsheets for the
study of the simple gravitational pendulum in oscillation regime. The period of the pendulum …