ABSTRACT
When implementing active control systems to reduce structural vibration, to reduce sound transmission in ducts, to reduce vibration transmission through isolation systems or to reduce noise radiated by vibrating surfaces, there are many variables associated with the physical system arrangement that need to be optimised to achieve the maximum possible system performance. There are also a number of hardware and software aspects associated with the electronic controller that must be considered and accounted for when a laboratory system is adapted for operation in an industrial or commercial environment. There needs to be some sort of hierarchy in the approach to optimising the many variables, which include type, locations and numbers of control sources: quality of the reference signal for feedforward systems, type, locations and numbers of error sensors; software structure and algorithm considerations; and hardware architecture considerations (Hansen et al., 2007).
