Moving load

This paper presents the influence of the varying axial force of cable-stayed bridge caused by moving vehicles on the detection of diameter reduction of cables using vibration signal obtained from the climbing robot. The cable model is considered as an axially loaded Euler beam. When there is no diameter reduction, the dynamic displacement of the robot is smooth and no distortion can be inspected.

10p dathienlang1012 03-05-2024 7 2   Download

A novel frequency domain assurance criterion, called hereby Spectral Assurance Criterion (SAC), is proposed for frequency response analysis of cracked piezoelectric beam under moving load. First, a model of cracked beam bonded with a piezoelectric layer under moving harmonic load is conducted based on the double beam conception and then, analytical expressions of midspan beam deflection (mechanical response) and output charge produced in the piezoelectric layer (electric response) has been established in the frequency domain.

10p dathienlang1012 03-05-2024 1 0   Download

This paper presents the time history response of a sandwich beam with a porous core subjected to two moving harmonic loads with opposite directions. In the modelling, the beam is combined of two isotropic face sheets and a porous core with symmetric porosity distribution. The quasi-3D shear deformation beam theory in conjunction with Hamilton’s variational principle is utilized to set up the governing equations of motion. The Navier solution is used to obtain the displacement field.

14p dianmotminh02 03-05-2024 5 2   Download

The purpose of this work is to offer a method for detecting structural damage utilizing the standardized index of the beam's deflection influence line difference as input data for the evaluation procedure. The displacement influence line used in the evaluation is calculated using the findings of the behavior analysis of the reinforced concrete beam's finite element model when subjected to a moving load.

10p visergey 02-04-2024 5 0   Download

ASP.NET can be challenging to learn unless you follow the step-by-step approach that is used in this book. Topics are presented in the order in which many developers like to learn them, starting with basic components and then gradually moving on to those features found on classy web sites. Each chapter follows a time-tested formula that first explains the topic in an easy-to-read style and then shows how it is used in a working web page that you can copy and load yourself.

289p longtimenosee08 31-03-2024 5 1   Download

The novelty of the present work is to study the simultaneous influence of porosities and partial Pasternak foundation support on dynamics of functionally graded (FG) beams carrying a moving load. The beams are made from an open-cell steel foam with symmetric and asymmetric porosity distributions in the thickness direction.

16p vialfrednobel 21-12-2023 2 2   Download

Continued part 1, part 2 of ebook "Learning Three.js: The JavaScript 3D library for WebGL - Create and animate stunning 3D graphics using the open source Three.js JavaScript library" provides readers with contents including: particles and the particle system; creating and loading advanced meshes and geometries; animations and moving the camera; loading and working with textures; custom shaders and render post processing; adding physics to your scene with physijs;...

207p tieulangtran 28-09-2023 8 5   Download

The dynamical responses of railway track has been carried out by different ways. In this work, by developing an analytical model for the ballasted railway track which includes two rails connected to the railway sleeper, a fast method to calculated the dynamic responses of the two rails is presented. The rail is modelled as the infinite beams posed on the periodically supports which are rested on a viscoelastic foundation.

13p viberkshire 09-08-2023 7 4   Download

With the preeminent features of polyurethane (PU) panels such as sound insulation, heat insulation, fire resistance, high load capacity, light weight, high aesthetics, especially they are simple to use and easy to assemble and move, so new PU panel is now the first choice for construction projects.

15p viannee 02-08-2023 4 3   Download

In this paper, there is proposed a novel damage index extracted from frequency response of cracked Timoshenko beam under moving harmonic load using the so-called Modal Assurance Criterion (MAC) concept. First, frequency response of a cracked Timoshenko beam subjected to harmonic force moving on the beam with constant speed is obtained in an analytical expression.

11p viwolverine 11-07-2023 5 2   Download

This paper presents a new pulse width modulator control method using the offset function to reduce switching loss in five-level Cascade inverter. The proposed technique is based on the offset function being 3rd harmonic voltage. The offset voltage will be added to the control voltages so that the voltage of phase which has absolute of load current largest move into top or bottom of the carriers.

7p vidoctorstrange 06-05-2023 4 2   Download

T The roadway networks have been played a vital role in the development of all countries. The assessments of pavement conditions during their service life are therefore decisive to maintain the stable performance of the network. From this point of view, pavement instrumentation allows monitoring pavement conditions continuously and without traffic interruption.

12p viaudi 29-08-2022 7 1   Download

Advanced Computer Architecture - Lecture 23: Instruction level parallelism. This lecture will cover the following: hardware support at compile time; conditional/predicated instructions; H/W based compiler speculation; conditional move instruction; predicated load instructions;...

62p haoasakura 30-05-2022 10 3   Download

This paper presents a quick review of some operations involving the move of physical materials in a factory, including inventory management, material cutting, jobshop scheduling, load packing, and vehicle routing. Instances of more than 30 software with their most prominent features have been introduced. Most of them are software as a service (SaaS), while other are stand-alone software packages or a part of a more comprehensive solution like ERP.

10p alucardhellsing 04-05-2022 15 1   Download

This work studies the vibration of sandwich beams reinforced with carbon nanotubes (CNTs) under moving point loads. The cores of the beams are homogeneous while their two sides are made of carbon nanotube reinforced composites. The effective properties of two face sheets are estimated through a micromechanical model. A uniform distribution (UD) and four different types of functionally graded (FG) distributions, namely FG-X, FG, FG-V, FG-O, are considered.

15p spiritedaway36 25-11-2021 5 1   Download

Vibration analysis of multi-span bidirectional functionally graded material (2D-FGM) beams subjected to a moving load is presented by using a high-order deformation theory. The material properties of the beam are assumed to vary continuously in the thickness and longitudinal directions by a power-law distribution. The dynamic response of the beam is computed with the aid of the Newmark method.

8p viwinter2711 18-10-2021 13 1   Download

In this paper, linear dynamic analysis of a functionally graded materials (FGMs) beams on nonlinear viscoelastic foundation under to moving load considering moving mass has been investigated. The nonlinear behavior of viscoelastic foundation is represented by the third order relationship.

8p viwendy2711 05-10-2021 10 1   Download

In this paper, vibration of a 2D-FGSW Timoshenko beam formed from three distinct materials traversed by a harmonic load is studied by the finite element method. The beam consists of three layers, a homogeneous core and two FGM skin layers with the material properties continuously varying in both the thickness and length directions by power functions.

16p cothumenhmong9 04-01-2021 12 1   Download

The paper studies the dynamic response of a Timoshenko beam resting on a third order nonlinear viscoelastic foundation subjected to a moving load. Basing on the theory Timoshenko, a single beam with a constant crosssection is described. The foundation modal is taken as the third order nonlinear viscoelastic foundation with six independent parameters.

6p vivirginia2711 09-12-2020 5 0   Download

The objective of this study is to investigate the performance of Anaerobic Moving Bed Biofilm Reactor (MBBR) on the removal of organic matters (using COD, BOD5 and TSS values) in piggery wastewater using two kinds of carrier: Polyurethane (PU) and Polyethylene (PE) - Different organic loading rates (OLRs) varying from 4.0 to 10 gCOD/l/day with controlled temperature 35 ± 2 oC, pH 7.0 - 7.5 were investigated.

11p angicungduoc5 13-06-2020 21 0   Download