Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Nguyen Cao Menh"'
Autor:
Nguyen Cao Menh
Publikováno v:
Vietnam Journal of Mechanics. 29:397-413
In this paper, after analysing deformations of loading ball-bearing it is able to investigate vibrations of rotor-bearing system as the system with non-linear and periodically varying stiffness. The modelling of the systems is depent on properties of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82506e26a26cdcb352680909bd77ca97
https://doi.org/10.15625/0866-7136/29/3/5548
https://doi.org/10.15625/0866-7136/29/3/5548
Autor:
Nguyen Cao Menh, Tran Duong Tri
Publikováno v:
Vietnam Journal of Mechanics. 25:225-242
This paper presents a dynamical balancing method for the rotational part of machine as a nonlinear system with the decrease of rotation speed passing across a resonant region. After analyzing the nonlinear system and measurable vibration signals, a s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31ed9dd0936591d5cc03e143040cbbc0
https://doi.org/10.15625/0866-7136/25/4/6594
https://doi.org/10.15625/0866-7136/25/4/6594
Publikováno v:
Vietnam Journal of Mechanics. 22:39-46
Hammer pontoon systems are usually used for pile-driving of onshore construction. The systems are constantly acted upon by marine wave, wind and current and have to be fixed by moorings. In this paper, on the basis of software ALASKA the system is si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0f97b44feefe74e3d501af54922d0e5
https://doi.org/10.15625/0866-7136/9961
https://doi.org/10.15625/0866-7136/9961
Autor:
Nguyen Cao Menh
Publikováno v:
Vietnam Journal of Mechanics. 21:165-172
In this paper a method for dynamical balancing of rotating machines as a nonlinear system is proposed. After analyzing and identifying the nonlinear system, procedure of dynamical balance including measurement and processing of vibration signals, for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d14e7bd35af44fafbcc54c531ca081e
https://doi.org/10.15625/0866-7136/9998
https://doi.org/10.15625/0866-7136/9998
Autor:
Pham Xuan Khang, Nguyen Cao Menh
Publikováno v:
Vietnam Journal of Mechanics. 20:18-26
On the basis of dynamic diagnosis equipment VDIK-1-10 of Russia and finite element method (FEM), the procedures for finding the exciting places and measurement points of vibration are presented. They give us clear information of diagnostic parameters
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b28a905e5ce6abac8d13db6cab17efb5
https://doi.org/10.15625/0866-7136/10017
https://doi.org/10.15625/0866-7136/10017
Publikováno v:
Vietnam Journal of Mechanics. 20:29-46
The classical 3D beam element has been modified and developed as a new finite element for vibration analysis of frame structures with flexible connections and cracked members. The mass and stiffness matrices of the modified elements are established b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::832e4bb77a9659958828d32dd190b436
https://doi.org/10.15625/0866-7136/10010
https://doi.org/10.15625/0866-7136/10010
Autor:
Nguyen Cao Menh, Tran Trong Toan
Publikováno v:
Vietnam Journal of Mechanics. 17:27-38
On the basis of analyzing the transverse vibration of a clamped-free beam, in this paper an inverse problem is investigated. The analytical method· and computational program me have been presented for determination of the length of the beam when vib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a55319195550636ce05b4f48890d75c
https://doi.org/10.15625/0866-7136/10136
https://doi.org/10.15625/0866-7136/10136
Autor:
Tran Duong Tri, Nguyen Cao Menh
Publikováno v:
Vietnam Journal of Mechanics. 16:23-31
In this paper the procedure and program for simulation of stochastic processes are represented. The program is applied to nonlinear mechanical systems subjected to stochastic stationary excitation. The results obtained are compared with the ones from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9be974645fff04e2e20401c8a7cef98
https://doi.org/10.15625/0866-7136/10171
https://doi.org/10.15625/0866-7136/10171
Autor:
Tran Duong Tri, Nguyen Cao Menh
Publikováno v:
Vietnam Journal of Mechanics. 14:19-26
Simulation of stationary random processes specified by spectral density function and NonNormal probability density function has been rarely studied, though these processes are often met in both theory and practice. In this paper we consider a simulat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2d9daa7c8a05e8c6f440d89c8b91409
https://doi.org/10.15625/0866-7136/10240
https://doi.org/10.15625/0866-7136/10240
Autor:
Nguyen Cao Menh
Publikováno v:
Vietnam Journal of Mechanics. 2:16-22
In this paper, the problem in [1] is continued studying. The some special cases of the general problem are considered. The beam with internal friction under stochastic forces is analyzed. In this example the influence of the hysteresis character in m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef8a79be4cbcf6c29a9a63bdbd5983aa
https://doi.org/10.15625/0866-7136/9903
https://doi.org/10.15625/0866-7136/9903