Dynamics of Machines and Hydraulic Systems, 1st ed. 2024 Mechanical Vibrations and Pressure Pulsations Synthesis Lectures on Mechanical Engineering Series

The subject of this book is to examine the influence of mechanical vibration on the changes in the pressure pulsation spectrum of hydraulic systems. In book shows that machines and equipment equipped with hydraulic systems are a source of vibration with a wide frequency spectrum. Additionally, hydraulic valves are also exposed to vibration. Vibrations of the substrate on which the hydraulic valve is installed force the control element of the hydraulic valve to vibrate. The control element's vibration produced in this way causes changes in the pressure pulsation spectrum of the hydraulic system. A friction model modified using mixed friction theory can be used for the oscillating motion of the hydraulic directional control spool. Passive vibration isolation methods are proposed to reduce valve vibration. The biomimetic approach can be implemented in hydraulic systems (for pipelines) to reduce mechanical vibration and fluid pulsation. Numerical methods are employed to analyze the effectof changes in the pressure pulsation spectrum on the hydraulic efficiency of the pipelines. Examples are provided for the implementation of numerical methods in the calculation of hydraulic components and systems. Additionally, the effects of energy-saving in hydraulic systems by applying the proposed results overview in the current book. The current book will be interesting for both?scientific and manufacturing staff, since the implementation of knowledge can help to design more substantiable construction of machine hydraulic systems to avoid vibration problems.

Michał Stosiak was born on August 10 1977 in Wrocław (Poland). In 2001 at Wrocław University of Science and Technology he acquired Master`s degree in Mechanical Engineering. In 2005 defended PhD dissertation at Wrocław University of Science and Technology and obtained Doctoral degree in Mechanical Engineering, construction and operation of machinery, hydraulic drive and control. In 2015 defended Habilitation at Wrocław University of Science and Technology and obtained Doctor of Science (Dr. Habil.) degree in Mechanical Engineering. From 2017 working in Associate Professor position at the Mechanical Engineering Faculty of Wrocław University of Science and Technology. Deputy Head of Department of Technical Systems Operation and Maintenance, former Head of Department of Hydraulic Drives and Automatics. Author of almost 300 scientific publications in Mechanical Engineering field author of 7 patents and 6 patents applications. The main research direction interests include: hydraulics, vibrations, pressure pulsation and damping, noise, hydrodynamics, frequency and vibration analysis, application of composite materials.

Describes practical sources of vibration acting on hydraulic system components. It combines the elements of vibration and dynamic phenomena in hydraulic systems in an unprecedented way. Demonstrates the impact of non-stationary flow on the energy efficiency of hydraulic systems.