Vibrations of a pipe on elastic foundations

Lilkova-Markova, S. V.; Lolov, Dimitar

doi:10.1007/bf02703775

Cited by 7 publications

(4 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Dynamic calculation of thin-walled pipes, and now days is an actual problem, which confirms a series of works devoted to this problem [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]18]. Practice shows that the pipelines during operation are subjected to dangerous kind of dynamic effects and vibrations.…”

Section: Resultsmentioning

confidence: 66%

“…At present, our country is implementing the construction of new and development of existing trunk pipeline networks made of modern thin-walled pipes with diameter up to 1000 mm. Depending on the region, climatic and geological conditions there are different types of technological solutions used for laying pipelines such as underwater [1,2], above-ground, ground [3,4,5,6,7,8,9,10], underground [11,12,13,14] and semi-underground [15,16]. For each type of laying there are the features of calculation and collecting of loads to be considered for exploitation.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Free vibrations of thin-walled semi-underground main gas pipelines of large diameter, with the attached ground mass

Sokolov

Razov

2017

MATEC Web Conf.

View full text Add to dashboard Cite

Abstract. In this paper, we solve the problem of free bending vibrations of the main thin-walled large-diameter pipeline, corresponding semiunderground laying type. As a result, vibration process involves a pipeline to move the surrounding ground, which significantly affects the frequency free vibrations. The values of the natural frequencies of the pipeline will depend on the characteristics of the ground, and it's mass. The decision takes into account the impact of the attached ground mass on the free vibration frequency based on the geometrically nonlinear version of semimomental theory of average bending cylindrical shells.

show abstract

Section: Resultsmentioning

confidence: 66%

Section: Introductionmentioning

confidence: 99%

Free vibrations of thin-walled semi-underground main gas pipelines of large diameter, with the attached ground mass

Sokolov

Razov

2017

MATEC Web Conf.

View full text Add to dashboard Cite

show abstract

“…Substituting (11), (12) in system (8) after transformations, we obtain a system of equations with separable unsteady exposure: (15) Evaluation of the dynamic stability of the ground pipeline is to construct dynamic instability areas in the parameter plane J , Р for given values of the internal operating pressure, parameter h/R and coefficient of soil. The area of dynamic instability is determined like:…”

Section: Description Of Studiesmentioning

confidence: 99%

“…Maltseva [11], S.V. Lilkova-Markova [12], I. Lottati [13] и др. There are many works connect with determine of the free oscillation.…”

Section: Introductionmentioning

confidence: 99%

Effect of Internal Pressure on Parametric Vibrations and Dynamic Stability of Thin-Walled Ground Pipeline Larger Diameter Connect with Elastic Foundation

2016

View full text Add to dashboard Cite

Abstract. The article describes the research methodology of parametric vibrations and dynamic stability of ground thin-walled large-diameter pipeline. The equation of motion of the middle surface of the cylindrical shell element based on elastic resistance of ground. To determine the frequency of free oscillations using the assumptions of the semimomental theory of cylindrical shells and get a complete system of equations for the case of an articulated fixing of the cylindrical shell. Solving the resulting system in analytical form the expression for determining the square of the frequency of free oscillations of a thin-walled ground gas pipeline of large diameter. The methodology of the study of the dynamic stability of a gas pipeline under unsteady effects of internal operating pressure, and the parameter of the longitudinal compressive force, using Mathieu equations. With the help of the Bogolyubov-Mitropolsky techniques built area of dynamic instability in the form of Ince-Strutt diagram for different values of the internal pressure of the pipeline section, the parameter of the longitudinal compressive force, and parameter of thin-walled h / R.

show abstract

Free Oscillations of Semi-underground Trunk Thin-Wall Oil Pipelines of Big Diameter

Sokolov

Razov

2019

Advances in Intelligent Systems and Computing

View full text Add to dashboard Cite

Vibrations of a pipe on elastic foundations

Cited by 7 publications

References 2 publications

Free vibrations of thin-walled semi-underground main gas pipelines of large diameter, with the attached ground mass

Free vibrations of thin-walled semi-underground main gas pipelines of large diameter, with the attached ground mass

Effect of Internal Pressure on Parametric Vibrations and Dynamic Stability of Thin-Walled Ground Pipeline Larger Diameter Connect with Elastic Foundation

Free Oscillations of Semi-underground Trunk Thin-Wall Oil Pipelines of Big Diameter

Contact Info

Product

Resources

About