问题描述:
英语翻译
因为赶时间,翻译好的话分数我可以再加,如果你想用谷歌、有道之类的翻译工具混分,那么请你离开,
3.1 Product model
A product model holds the process and product knowledge to ensure the correct fabrication of the product with sufficient quality.It acts as an information server to the other models in the VFMC.It also provides consistent and up-to-date information on the product lifecycle,user requirements,design,and process plan and bill of material.An instance of Class Part provides detailed information about a part to be fabricated in VFMC.Sub-classes like Process-Plan,BOM,and NcCode,are aggregated into the class Part.Classes Process-Plan and BOM manipulate information and data associated with process plans and bill of materials,respectively.Class NcCode deals with NC programs,which interacts with CAD/CAM systems.With incorporation with the facility model,this developed NC programs can be verified and checked for collisions and interference with any work-piece or tooling in the fixture.This can avoid costly machine crashes and reduce risk during initial equipment installation and produce launch.Furthermore,productivity can be improved by avoiding nonproductive time for program prove out on the machine tool and by using the simulation environment to train operators of new machines.
3.2 Facility model
Real manufacturing cell may consist of NC machines,robots,conveyors,and sensory devices.The architecture of class corresponding to the real manufacturing cell is shown in Fig.3,and represents the factory model.In VFMC,characteristics of the factory model include a detailed representation of machine behavior over time,a structure to the model that can configure and reconfigure easily,and a realistic and three-dimensional animation of machine behavior over time.Virtual machines defined within this model may be used to estimate accurately the merit of a process plan,and,based on this evaluation,determine appropriate process conditions to improve (and even optimize) the plan.Virtual robot contributes to unload and load parts into/from machines,and is used to find optimal paths without any collisions.With virtual operation,the fidelity of the machining and robot utilizing time and cost estimates is expected to improve.In addition,accurate modeling will predict the quality of the machined part,which cannot be determined easily and reliably without producing several physical prototypes.This information is invaluable to both the designer and the process planner.Physical entities such as machines and work-pieces have the explicit representation as 3-D models for their shapes,positions,and orientations.3-D models are conveniently used for calculating,geometrical attributes,checking spatial relations,and displaying computer graphics
因为赶时间,翻译好的话分数我可以再加,如果你想用谷歌、有道之类的翻译工具混分,那么请你离开,
3.1 Product model
A product model holds the process and product knowledge to ensure the correct fabrication of the product with sufficient quality.It acts as an information server to the other models in the VFMC.It also provides consistent and up-to-date information on the product lifecycle,user requirements,design,and process plan and bill of material.An instance of Class Part provides detailed information about a part to be fabricated in VFMC.Sub-classes like Process-Plan,BOM,and NcCode,are aggregated into the class Part.Classes Process-Plan and BOM manipulate information and data associated with process plans and bill of materials,respectively.Class NcCode deals with NC programs,which interacts with CAD/CAM systems.With incorporation with the facility model,this developed NC programs can be verified and checked for collisions and interference with any work-piece or tooling in the fixture.This can avoid costly machine crashes and reduce risk during initial equipment installation and produce launch.Furthermore,productivity can be improved by avoiding nonproductive time for program prove out on the machine tool and by using the simulation environment to train operators of new machines.
3.2 Facility model
Real manufacturing cell may consist of NC machines,robots,conveyors,and sensory devices.The architecture of class corresponding to the real manufacturing cell is shown in Fig.3,and represents the factory model.In VFMC,characteristics of the factory model include a detailed representation of machine behavior over time,a structure to the model that can configure and reconfigure easily,and a realistic and three-dimensional animation of machine behavior over time.Virtual machines defined within this model may be used to estimate accurately the merit of a process plan,and,based on this evaluation,determine appropriate process conditions to improve (and even optimize) the plan.Virtual robot contributes to unload and load parts into/from machines,and is used to find optimal paths without any collisions.With virtual operation,the fidelity of the machining and robot utilizing time and cost estimates is expected to improve.In addition,accurate modeling will predict the quality of the machined part,which cannot be determined easily and reliably without producing several physical prototypes.This information is invaluable to both the designer and the process planner.Physical entities such as machines and work-pieces have the explicit representation as 3-D models for their shapes,positions,and orientations.3-D models are conveniently used for calculating,geometrical attributes,checking spatial relations,and displaying computer graphics
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