ABSTRACT
Compliant structures are special geometric forms of floating structures that operate under positive buoyancy (Chandrasekaran and Sharma, 2010b). Common example structures are offshore platforms and naval rescue vessels. While their stability is mainly governed by hydrodynamic characteristics, structural stability can be examined using Mathieu stability equations and charts (Chandrasekaran and Thomas, 2016b). This chapter deals with the Mathieu stability of complaint structural systems, with applied examples on new-generation offshore production and exploration platforms. Numerical studies that are carried out on such offshore platforms are presented in detail for the benefit of the users as the details of the discussed subject is very scarce in the literature. Mathieu stability is investigated for two types of compliant structures, wherein various parameters that influence their stability are addressed through detailed numerical investigations.
