Abstract:The certain enging was disassembled and inspected because of its turbine blades being invalidated at
ground starting. In this paper, it records the fault condition, takes computational analysis of clearance between low
pressure first stage turbine working blades and low pressure first stage guide blades of the fault engine, takes metallur鄄
gical analysis and workpiece processing analysis and durability testing and mutuality dimension chain computing for
engine broken blades. Taking systems analysis for blades broken reason by fault tree, it finds out the reason of engine
blades invalidated and advances improving advices.
