Study on transverse vibration characteristics of the coupled system of shaft and submerged conical-cylindrical shell

Xie, Dongchen; Zhang, Cong

doi:10.1016/j.oceaneng.2019.106834

Cited by 22 publications

(1 citation statement)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to obtain more complete fault information, we need to consider more relevant structures of the diesel engine system. From the point of structural parameters, the scholars considered the influence of bearing stiffness, 22 coupling stiffness, 23 eccentricity of cross section, damping coefficient, and length diameter ratio, 24 the cyclic variation of inertia of the reciprocating parts 25 on torsional vibration. From the perspective of excitation sources, they analyzed the source mechanisms of related substructures, gear engagement force, 26 the noise in gearbox, 27 and the source from the lower front end.…”

Section: Introductionmentioning

confidence: 99%

A new torsional vibration coupling model for transmission system in diesel generator

Chen

Guo

et al. 2021

International Journal of Engine Research

View full text Add to dashboard Cite

The coupling between the crankshaft and the camshaft is neglected before in fault diagnosis which may lead to incomplete fault information. In this paper, a new torsional coupling model of a diesel generator transmission system is proposed for fault diagnosis. The natural frequency and forced torsional vibration response of the model are obtained by the system matrix method and Newmark-β method. For the system without considering the lumped mass of camshafts, some key natural frequencies are lost. The vibration dynamics are compared for the transmission system with and without the new coupling model. And important frequency responses are missed in the spectrums of the forced torsional vibration without the new coupling model. Finally, the new coupling model is implemented in fault diagnosis and the cause of an unusual vibration fault is deduced in the simulation, which confirms the feasibility of the proposed model in fault diagnosis.

show abstract

Section: Introductionmentioning

confidence: 99%

A new torsional vibration coupling model for transmission system in diesel generator

Chen

Guo

et al. 2021

International Journal of Engine Research

View full text Add to dashboard Cite

show abstract

Mathematical modeling of the stress–strain state of T‐shaped connection of cylindrical pipes

Rukavishnikov

Ryabokon

Tkachenko

2022

Math Methods in App Sciences

View full text Add to dashboard Cite

Equations of elastic cylindrical shells in term displacements for the T‐shaped connection of pipes are derived. Three‐dimensional mathematical model is constructed within the framework of the membrane shells theory. Geometric and force conjugation conditions are set on the pipe intersection line, and boundary conditions are imposed on the ends of the pipes. Complete three‐dimensional mathematical model is presented in a Cartesian coordinate system, to achieve a unified approach to solving the problem. Dimension of the original problem is reduced by one. This result is obtained from the symmetry conditions of the mechanical system with respect to the plane of the T‐shaped connection. The resulting two‐dimensional boundary value problem is divided into two sub‐problems, each of which is posed in a rectangular domain. Conjugation conditions are eliminated from the final formulation of the boundary value problem. A numerical experiment is carried out, which proved the permissibility of replacing the conjugation conditions with sleeve contact. Numerical examples showed a weak dependence of the approximation of the conjugation conditions by the sleeve contact on the choice of the dimension of the finite elements: three‐dimensional or two‐dimensional. The existence of a stress field singularity in the vicinity of the shell joining line is established.

show abstract

The free vibration analysis of hybrid porous nanocomposite joined hemispherical–cylindrical–conical shells

Sobhani

Arbabian

Cívalek

et al. 2021

Engineering with Computers

View full text Add to dashboard Cite

Study on transverse vibration characteristics of the coupled system of shaft and submerged conical-cylindrical shell

Cited by 22 publications

References 17 publications

A new torsional vibration coupling model for transmission system in diesel generator

A new torsional vibration coupling model for transmission system in diesel generator

Mathematical modeling of the stress–strain state of T‐shaped connection of cylindrical pipes

The free vibration analysis of hybrid porous nanocomposite joined hemispherical–cylindrical–conical shells

Contact Info

Product

Resources

About