|
|
Lubrication of plastic gears
Poledník, Radim ; Vimmr, Jan (referee) ; Šperka, Petr (advisor)
The purpose of this diploma thesis is to describe the influence of input parameters (rolling speed, load, temperature, dynamic viscosity and pressure coefficient of the lubricant) on film thickness in point and elliptical contacts using optical interferometry. Regression based film thickness formula has been obtained using universal form of non-dimensional parameters of entrainment speed U, load W and material G. Equations were also complemented by the function of ellipticity k. New regression formulas for central and minimum film thickness have been compared with existing EHL thickness equations. These film thickness measurement and new regression formulas have applicability to our understanding of the performance and more effective design of lubricated gears from polymeric materials.
|
|
|
Tool for measurement goniophotometer
Poledník, Radim ; Klapka, Milan (referee) ; Dvořáček, Jiří (advisor)
The aim of the bachelor’s thesis is to develop a new multipurpose storage for photometric measurement of automotive headlamps and rear lamps. The goal of this device is reduce overall time required to measure samples, mainly rear lamps. The concept takes into account qualitative and quantitative requirements. For example, the effective shielding of light and heat radiation, constant electrical quantities, and easy manipulation in difficult condition of the photometric test halls.
|
|
|
Lubrication of plastic gears
Poledník, Radim ; Vimmr, Jan (referee) ; Šperka, Petr (advisor)
The purpose of this diploma thesis is to describe the influence of input parameters (rolling speed, load, temperature, dynamic viscosity and pressure coefficient of the lubricant) on film thickness in point and elliptical contacts using optical interferometry. Regression based film thickness formula has been obtained using universal form of non-dimensional parameters of entrainment speed U, load W and material G. Equations were also complemented by the function of ellipticity k. New regression formulas for central and minimum film thickness have been compared with existing EHL thickness equations. These film thickness measurement and new regression formulas have applicability to our understanding of the performance and more effective design of lubricated gears from polymeric materials.
|
|
|
Tool for measurement goniophotometer
Poledník, Radim ; Klapka, Milan (referee) ; Dvořáček, Jiří (advisor)
The aim of the bachelor’s thesis is to develop a new multipurpose storage for photometric measurement of automotive headlamps and rear lamps. The goal of this device is reduce overall time required to measure samples, mainly rear lamps. The concept takes into account qualitative and quantitative requirements. For example, the effective shielding of light and heat radiation, constant electrical quantities, and easy manipulation in difficult condition of the photometric test halls.
|
guest ::
