Research on Method for Deformation Sensing and 3D Reconstruction of Connecting Rod Based on FBG
As a key component of diesel engine,the connecting rod deformation directly affects the performance and life of power equipment.Therefore,the detection of the connecting rod deformation plays an important role in ensuring the service life of the power equipment.In this paper,the deformation detection technology based on fiber Bragg grating(FBG)for the connecting rod of marine diesel engines was proposed.According to the deformation characteristics of the connecting rod obtained from finite element analysis,a sensing network of FBG sensors was designed.On this basis,the three-dimensional reconstruction model of the connecting rod under the force was established and the FBG-based software and hardware system for the deformation detection of the connecting rod was developed to realize the visual monitoring of the deformation for the connecting rod.The experimental re-sults indicate that the FBG-based perception and reconstruction technologies detect the deformation of the connecting rod are fea-sible,which provide new ideas for the accurate detection of the connecting rod performance and the deformation detection of other key parts of the ship power equipment.
FBGdeformation detection3D reconstructionconnecting rod