This paper presents status quo and problems of condition monitoring and fault diagnostics in complex heavy mechanical systems.The methods of solving problems are discussed.We give an example of the condition monitoring and fault diagnostics software.

• 讨论了大型复杂机械系统状态监测和故障诊断研究的现状和存在的问题，指出在解决复杂工程问题上所存在的差距，探讨了解决问题的方法，提出了基于过程模型的故障检测和诊断方法的一般结构，列举状态监测和故障诊断软件构成实例。