Investigation of transmission misalignment influence to dynamics of mechatronic system

Abstract

Different methods are applied to research of oscillatory processes in such systems [4, 5]. In the rotor systems, flexible clutches with non-linear characteristics are commonly used. The clutches used up to now do not completely match the vibration protection requirements. They poorly suppress vibration and impacts. At present, new clutch structures, the action of which is based on interaction between the forces of rotating masses and those of flexible elements, are worth special attention. Due to this interaction, the radial stiffness of the shaft coupling device (clutch) decreases. Thus, the development of new rotary motion transmission and stabilization devices, their metrical synthesis and optimisation of flexible element parameters through optimal location and orientation of their elements in the constructions, enable us to obtain devices with good operational characteristics. The RMTSD are used because the clutches of rotary moment transfer do not meet ever increasing requirements of industry. With smaller dimensions of machines, as well as higher speed and productivity, the dynamic loads of some parts of machines have grown considerably. For obtaining more precise and reliable machines, we must diminish the harmful vibrations generated. Increasing speeds of machines impose heavy demands on RMTSD. They have to compensate radial and angle misalignments of coupling shaft axes, to suppress impacts and interferences, to more efficiently isolate vibrations, to avoid resonance swings or to remove them from a zone of machine working swings, to suppress dynamically rotary vibrations, and to stabilize the rotary motion on the principle of sequence, etc. Besides, the RMTSD must possess good operational characteristics at high temperatures and in the presence of dangerous chemical substances. They also must be easily assembled, dismantled and repaired, as well as being steady, firm and reliable.