为实现复杂产品设计数据与工艺数据集成和企业信息共享,达到产品数据的全生命周期管理和控制,将产品数据集成模型分成设计数据模型和工艺数据模型两部分。以工艺活动为中心关联操作对象(输入)、结果对象(输出)设计数据、工艺数据和资源...为实现复杂产品设计数据与工艺数据集成和企业信息共享,达到产品数据的全生命周期管理和控制,将产品数据集成模型分成设计数据模型和工艺数据模型两部分。以工艺活动为中心关联操作对象(输入)、结果对象(输出)设计数据、工艺数据和资源数据,按工艺活动的先后顺序形成工艺结构树或电子工艺清单(EBOP,Electronic Bill of Process),使前继工艺活动的结果对象作为后续工艺活动的操作对象,建立反映复杂产品制造过程的复杂产品工艺数据模型。用体现EBOP数据结构的XML中性格式文件实现PDM与OAPP系统之间的集成,通过产品零部件对象实现PDM系统中EBOM与BOP之间的数据集成。同时,阐述了该工艺数据模型在复杂产品生产过程中的应用。展开更多
The grey system theory, with the characteristics of fewer modeling data and higher accuracy, was employed to model the batch dyeing process for the purpose of accurate online control. The GM（1, 1） and GM （0, N） mo...The grey system theory, with the characteristics of fewer modeling data and higher accuracy, was employed to model the batch dyeing process for the purpose of accurate online control. The GM（1, 1） and GM （0, N） models of the grey system theory were discussed for their feasibilities of modding for batch dyeing process. The combination of direct dyestuff Fast Red F3B on cotton was chosen as a representative of the common dyeing method for describing the modeling process. Firstly, the GM（ 1, 1 ） model and the GM（1, 1） combined with GM（0, N） model were employed to model the equilibrium percentage of dyeing uptake rate. Secondly, an integrated dyeing uptake rate model with three factors （ temperature, salt concentration, and pH） was established based on the adsorption rate equation. Experimental results show that this model has higher accuracy and beetler generalization ability, which can predict the results of batch dyeing process. Due to the application of grey system theory, the model has a lot of advantages, such as being easy to determine the parameter value and small amount of calculation. So it can also be suitable for the same type of combination of dyestuff-fahric by changing the parameters value only.展开更多
文摘为实现复杂产品设计数据与工艺数据集成和企业信息共享,达到产品数据的全生命周期管理和控制,将产品数据集成模型分成设计数据模型和工艺数据模型两部分。以工艺活动为中心关联操作对象(输入)、结果对象(输出)设计数据、工艺数据和资源数据,按工艺活动的先后顺序形成工艺结构树或电子工艺清单(EBOP,Electronic Bill of Process),使前继工艺活动的结果对象作为后续工艺活动的操作对象,建立反映复杂产品制造过程的复杂产品工艺数据模型。用体现EBOP数据结构的XML中性格式文件实现PDM与OAPP系统之间的集成,通过产品零部件对象实现PDM系统中EBOM与BOP之间的数据集成。同时,阐述了该工艺数据模型在复杂产品生产过程中的应用。
基金National Natural Science Foundation of China(No.61074154)
文摘The grey system theory, with the characteristics of fewer modeling data and higher accuracy, was employed to model the batch dyeing process for the purpose of accurate online control. The GM（1, 1） and GM （0, N） models of the grey system theory were discussed for their feasibilities of modding for batch dyeing process. The combination of direct dyestuff Fast Red F3B on cotton was chosen as a representative of the common dyeing method for describing the modeling process. Firstly, the GM（ 1, 1 ） model and the GM（1, 1） combined with GM（0, N） model were employed to model the equilibrium percentage of dyeing uptake rate. Secondly, an integrated dyeing uptake rate model with three factors （ temperature, salt concentration, and pH） was established based on the adsorption rate equation. Experimental results show that this model has higher accuracy and beetler generalization ability, which can predict the results of batch dyeing process. Due to the application of grey system theory, the model has a lot of advantages, such as being easy to determine the parameter value and small amount of calculation. So it can also be suitable for the same type of combination of dyestuff-fahric by changing the parameters value only.
