With the development of the hydropower industry,the installed capacity of hydroturbine generator sets is increasing,and the equipment structure is becoming more and more complex,which puts more stringent requirements on the professional skills of equipment maintenance personnel.Traditional hydraulic turbine maintenance training is generally conducted by experienced experts in combination with text and video materials.This training method is less intuitive and interactive,and is limited by time and space.It is difficult for students to compare theory with practice.Combined,training efficiency is low.Therefore,this article aims to develop an economical,efficient and convenient hydraulic turbine maintenance training system.This paper selects the axial flow turbine as the research object,and develops a virtual maintenance training system for the turbine on the basis of virtual reality technology.Use Solidworks to realize the modeling and simulation of hydraulic turbines and maintenance tools,and use technologies such as weight management and gap analysis to complete the model assembly;select 3Ds Max to adjust the model coordinates,and then use polygon simplification and model lightening technology to optimize the model and make the disassembly and assembly animation of the turbine;Using the C# programming language,the Unity3 D virtual reality development engine developed user registration,disassembly animation demonstration,knowledge learning,training and assessment,assessment settings and performance management modules in the Unity3 D virtual reality development engine according to the expected goals,and realized the human-computer interaction of the virtual maintenance of the turbine.Combining the needs of the actual maintenance process of hydraulic turbines,the virtual maintenance training system for hydraulic turbines developed in this paper mainly has the following functions:(1)hydraulic turbine structure composition and maintenance theoretical knowledge learning;(2)hydraulic turbine disassembly operation training and assessment;(3)function setting,Maintenance tips and inquiries on student exam records.Through this system,maintenance trainers can learn the spatial structure and layout of hydraulic turbine parts,master the principle of hydraulic turbine maintenance and the process of turbine disassembly and assembly;administrators can set assessment options,inquire about the assessment results and error details of the trainees,and give targeted learning suggestions.The hydraulic turbine virtual maintenance training system provides a more realistic virtual maintenance environment for maintenance personnel,which not only shortens the training cycle of maintenance personnel,improves the quality and efficiency of training,but also reduces training costs,improves the economic benefits of the power station,and realizes the economic operation of the hydropower station.It has certain reference value and practical significance in aspects such as improving the practical operation ability of maintenance personnel. |