Research On Key Technologies Of Parametric Human Model For Ship Maintenance

With the development of the times,the importance of virtual maintenance technology in large and complex equipment is increasing.and the requirements for virtual maintenance technology will also increase.In the existing technology,quantitative evaluation and rapid verification technology are nearly mature,but there is still a lack of research on human model.In order to solve this problem,this paper redevelops the function of the human body model in the narrow space of ship equipment for path planning verification and collaborative handling.The main contents include ordinary human body modeling,human body modeling parameterization,constructing human body model tactile attributes and constructing human body model visual attributes.Firstly,by understanding the data structure of ".SWS" file needed to construct CATIA mannequin,and using mathematical means to supplement the data,a general mannequin suitable for Chinese human characteristics in narrow space is constructed.Then,by finding the mathematical relationship between height and percentile,a height and gender oriented human model is established,and the parametric design of the human model is completed.Next,according to the application scenarios of the human model,mainly in the path planning verification,the AABB bounding box collision detection algorithm is used to develop the tactile function of the human model,so that the human model can avoid spontaneously when it has contact with the surrounding environment in the process of path verification;in the aspect of collaborative transportation,the key point identification analysis method is used to construct the visual attributes,so that it can observe the other’s carrying posture,and adjust its own posture based on it when the mannequin cooperates with each other in carrying,and to keep the balance of the object in the whole process.Finally,according to the theory construction method of tactile and visual attributes,the CATIA human model is redeveloped through CAA technology to realize the construction of tactile and visual human model,and the simulation in a certain environment verifies the effectiveness of the intelligent human model for path planning verification and collaborative transportation in narrow space.