A new mechanism is proposed to implement synchronization of the two unbalanced rotors in a vibration system, which consists of a double vibro-body, two induction motors and spring foundations. The coupling relationship between the vibro-bodies is ascertained with the Laplace transformation method for the dynamics equation of the system obtained with the Lagrange's equation. An analytical approa...

One of the most important factors in determining the depth of foundations in structures adjacent to the water flow is the scouring phenomenon; the scouring is a phenomenon caused by the interactions between water flow and erodible bed materials, which causes the removal of sediments where hydraulic structures are located, including bridge piers. Every year, a great number of bridges are damaged...

In the article problem of geotechnical application clay nd claystone as a base driven pile foundations has been considered. When using these foundations, compaction zone is formed in space around pile. The purpose this research to analyze influence zones on results analytical and numerical calculations for predicting settlement layered soils. following tasks were solved: 1) existing investigati...

Matrix inversion is routinely performed in computational engineering, with coupling matrix filter synthesis considered here as just one of many example applications. When calculating the elements of the inverse of a matrix, the determinants of the submatrices are evaluated. The recent mathematical proof of the Desnanot–Jacobi (also known as the ‘‘Lewis Carol’’) identity shows how the determinan...

ABSTRACT: A complete set of algebraic formulas and dimensionless charts is presented for readily computing the dynamic stiffnesses (K) and damping coefficients (C) of foundations harmonically oscillating on/in a homogeneous half-space. All possible modes of vibration, a realistic range of Poisson's ratios, and a practically sufficient range of oscillation frequencies are considered. The foundat...

prominent contemporary jurist and commentator, ayatollah khu’i opines a comprehensive theory about the naskh in al-bayan. he challenges all claims of naskh in quran by setting some conditions, except in one case. considering that the concept of naskh is not an optional concept and it has religious effects, it can be expanded or restricted only with valid evidence and foundations. in this paper,...

j1 Subhamoy Bhattacharya PhD(Cantab) Senior Lecturer in Dynamics, University of Bristol, Bristol, UK j2 James A. Cox MEng Research Postgraduate Student, University of Bristol, Bristol, UK j3 Domenico Lombardi MSc Research Postgraduate Student, University of Bristol, Bristol, UK j4 David Muir Wood MA, PhD(Cantab), FICE, FREng Emeritus Professor of Civil Engineering, University of Bristol, Bristo...