|
|
Check valve
Nehybová, Petra ; Závorka, Dalibor (referee) ; Klas, Roman (advisor)
In this Master thesis are mentioned the most used constructions of non-return valves. Further consist of operation principles, fields of application, properties and diffi-culties connected to non-return valves. Motion plug of check valve in liquid is described based on CFD Software simulation.
|
|
|
Assessment of stiffness, damping and added mass in thin liquid layer in sealing gap
Kohut, Vojtěch ; Pochylý, František (referee) ; Habán, Vladimír (advisor)
The main purpose of this master’s thesis is to propose the methodology suitable for experimental evaluation of additional mass, stiffness and damping by which a liquid layer in the sealing gap affects the rotor. Sealing gaps are important structural elements of hydrodynamic machines. An appropriate design of a sealing gap including the additional effects determination is an inevitable part of the machine overall dynamic design. The thesis also provides a literature search in the field of rotor dynamics and additional effects of a liquid. The designed experiment aiming to determine additional effects of the liquid is based on rotor dynamics evaluation by means of the radial forces measurement. The experiment results were used to determine dynamic properties of dry and wet rotor of the testing device.
|
|
|
Determination of check valve dynamic properties
Dolníček, Petr ; Habán, Vladimír (referee) ; Himr, Daniel (advisor)
One of the objectives of the master´s thesis is to summarize types of most used check valves and their constructions. These check valves have specific static and dynamic properties. One of dynamic properties is vibration of closing member of lift check valve. Due to these vibrations, the added effects of fluid may result. This thesis deals with explanation and computation of these added effects.
|
|
|
Influence of annular seal on rotor dynamics
Kurková, Michaela ; Pochylý, František (referee) ; Habán, Vladimír (advisor)
The thesis deals with the problem of annular seals and their influence on rotor dynamics. In the first part the derivation of the basic analytical solution is presented. Subsequently, a FEM model of the rotor with the influence of annular seal is constructed. The model is used to analyze the effect of the seal on the rotor dynamics. The last part of the paper is devoted to the conceptual design of the experiment and its basic dynamic analysis.
|
|
|
Check valve
Nehybová, Petra ; Závorka, Dalibor (referee) ; Klas, Roman (advisor)
In this Master thesis are mentioned the most used constructions of non-return valves. Further consist of operation principles, fields of application, properties and diffi-culties connected to non-return valves. Motion plug of check valve in liquid is described based on CFD Software simulation.
|
|
|
Determination of check valve dynamic properties
Dolníček, Petr ; Habán, Vladimír (referee) ; Himr, Daniel (advisor)
One of the objectives of the master´s thesis is to summarize types of most used check valves and their constructions. These check valves have specific static and dynamic properties. One of dynamic properties is vibration of closing member of lift check valve. Due to these vibrations, the added effects of fluid may result. This thesis deals with explanation and computation of these added effects.
|
|
|
Assessment of stiffness, damping and added mass in thin liquid layer in sealing gap
Kohut, Vojtěch ; Pochylý, František (referee) ; Habán, Vladimír (advisor)
The main purpose of this master’s thesis is to propose the methodology suitable for experimental evaluation of additional mass, stiffness and damping by which a liquid layer in the sealing gap affects the rotor. Sealing gaps are important structural elements of hydrodynamic machines. An appropriate design of a sealing gap including the additional effects determination is an inevitable part of the machine overall dynamic design. The thesis also provides a literature search in the field of rotor dynamics and additional effects of a liquid. The designed experiment aiming to determine additional effects of the liquid is based on rotor dynamics evaluation by means of the radial forces measurement. The experiment results were used to determine dynamic properties of dry and wet rotor of the testing device.
|
guest ::
