Research on forming process of CFRP pantograph upper frame with embedded FBG sensor

doi:10.19936/j.cnki.2096-8000.20230128.013

Abstract

Abstract: This paper designs a CFRP pantograph upper frame with embedded FBG sensors. Taking the shape and structural dimensions of an aluminum alloy pantograph upper frame as a reference, the CFRP pantograph upper frame is made of carbon fiber composite materials. The structure is optimized under the premise of ensuring that the assembly size remains unchanged. At the same time, combined with the characteristics of the composite material forming process, the ply design and forming process are studied. In order to obtain the interlayer strain information of the upper frame of the CFRP pantograph during service, a certain number of FBG sensors are embedded in the manufacturing process according to its design structure and layering scheme, and the layout of the FBG sensors is determined. The pre-embedded method of the FBG sensor embedded in the upper frame of the CFRP pantograph and the protection method of the optical fiber lead out are studied, and the plastic sleeve is selected to protect the optical fiber drawn from the surface to prevent the optical fiber from being damaged.

Key words: CFRP pantograph upper frame, embedded FBG sensor, molding process, optical fiber lead-out protection

CLC Number:

TB332

WANG Yanjuan, DING Guoping, YU Yi. Research on forming process of CFRP pantograph upper frame with embedded FBG sensor[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(1): 107-111.

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