The book "Numerical Simulation of Mechatronic Sensors and Actuators" in its second edition offers a comprehensive and detailed examination of the physical modeling of mechatronic systems and their precise numerical simulation using the finite element method. The second edition retains the character of the first edition while expanding the coverage of topics and improving the presentation. The author, Manfred Kaltenbacher, has deepened many discussions on principles and methods, including new sections on a priori estimates and the locking effects that occur in the numerical calculation of thin mechanical structures. Additionally, the physics of sound generation and propagation is discussed in greater detail, including the phenomenon of flow-induced noise. A significant part of the book is dedicated to the application of the developed numerical calculation schemes to industrial problems, such as the analysis and optimization of electrodynamic loudspeakers. This new edition also includes a chapter on computational aeroacoustics, which addresses the complex phenomenon of flow-induced noise.