Vibro-acoustic sources, transfers and receivers
Vibration and shock insulation — Definitions. Physical principles

Generally speaking, our environment can be described in terms of sources of noise and vibration transfer routes in a wide variety of structures and environments, and to receivers sensitive to their vibro-acoustic environment.

Visit sources are, for the most part, machines that transform energy (electrical, thermal, petroleum) into mechanical work (reciprocating motion, rotation, raising the pressure of a fluid, machining or forming a material, etc.). Machines are subject to internal forces and inertial reactions which cannot be fully compensated for by design, and which also cause deformations of the machine envelope (e.g. the casing of an internal combustion engine).) or mobile (rotating shaft flanges), and fluctuations in speed and pressure both in the surrounding air and in the fluids passing...