Principle of statistical energy analysis for non-conservatively coupled systems

摘要

Traditional Statistical Energy Analysis(SEA)theory can not dealwith dynamic problems concerned with non-conservativcly coupled systems.Inthis paper,based on the theory of power flow between them and energy distri-bution in non-conservatively coupled osillators,equations of power balanceand those for calculation of each concerned power flow and other power itemsare derived to develop SEA theory for non-conservatively coupled systems.Re-sults show that conservative coupling is only a special case of non-conservativecoupling situations,effect of coupling damping on power flow and energy dis-tribution in non-conservatively coupled systems are not negligible unless coup-ling damping is much smaller compared with internal one.As an application ofthe theory,energy problems of non-conservatively coupled plates are studiedtheoretically and experimentally.