This study presents a novel and highly efficient technique to identify moving forces by utilising the acceleration response of an instrumented vehicle. The complex task determining is transformed into one solving linear equations, made easier through Newmark-β method. To overcome ill-conditioned problem improve recognition accuracy, Tikhonov regularisation employed. Uniquely, this approach nece...

To acquire transient response of a drive train, we consider more detailed mathematical model including variable gear mesh. The mesh is represented by the Fourier series. In analysis, gear’s angular velocity considered as constant. It makes sense when steady-state. However, only part which vary according to displacement. should be not series but also modified system establish model, use curve fi...

This article presents the analysis of functionally graded thick hollow cylinders under dynamic load. The functionally graded cylinder is assumed to be made of many subcylinders. Each subcylinder is considered as an isotropic layer. Material’s properties in each layer are constant and functionally graded properties are resulted by suitable arrangement of layers in multilayer cylinder. The proper...

We devise hybrid high-order (HHO) methods for the acoustic wave equation in time domain. first consider second-order formulation time. Using Newmark scheme temporal discretization, we show that resulting HHO-Newmark is energy-conservative, and this also amenable to static condensation at each step. then of as a first-order system together with singly-diagonally implicit explicit Runge-Kutta (SD...

This study proposes a novel reduced-order model (ROM), based on the Volterra series, for aerodynamic force of bridge deck section. Moreover, ROM streamlined box girder section Great Belt East Bridge (GBEB) is identified with computational fluid dynamic (CFD) simulations. Furthermore, an analysis method combining and Newmark-β integration established to simulate aeroelastic responses Finally, wi...

At present, there are still some gaps in the theoretical calculation of permanent displacement multi-stage loess slope under action earthquake. Therefore, this paper firstly uses GEO-Studio finite element software to explore influence comprehensive rate on when each grade changes and stage changes. The results show that it is feasible use calculate sliding body On basis conclusion, order simpli...

In order to study the dynamic response of LNG storage tank under action seismic load and isolation effect lead-core rubber bearing, this paper establishes experimental model with reference structural form large-scale tank, test is obtained using a shaking table test. Simplified mechanical models non-isolated isolated tanks are proposed responses corresponding calculated Newmark-beta method. Und...

Discharge valve is very critical component in rotary compressor, and it is a reed valve which consists of valve seat, valve slice and retainer. The motion characteristics of valve slice greatly influence the flowing loss and life of valve. The paper presents a mathematical model to simulate thermodynamic process and motion of the valve simultaneously. Based on the thin-plate theory, the finite ...