Study On Key Technologies Of Complicated Product Integrated Design Service Platform Based On Design Resources’s Multiple Agglomeration Methods

To solve the problems of low sharing rate, weak scalability, low intelligentization andlimited design object feasibility for design resources in the design process of complicatedproduct, modularization agglomeration method oriented to knowledge design resources andunit agglomeration method oriented to substantial design resources are put forward torealize reasonable agglomeration and high-efficiency reuse of design resources. Thearchitecture of Missile Integration Design Service Platform based on MultipleAgglomeration Methods of Design Resources (MIDSP-MAMDR) applied in the design ofmissile product is established, and key technologies are analyzed and studied.Firstly, from the respective of design resources virtualization, a series of conceptsincluding design resource category, design resource, design ability and design abilitycoefficient, are defined and modeled in the missile distributed integrated designenvironment. A general design ability model composed by static ability attributes,profession ability attributes and dynamic ability attributes is established from theperspective of design resources’s activity and behavior features. Then, a dynamic abilityassess method based on DAC (Design Ability Coefficient) is introduced to evaluate thevalue of dynamic ability attributes dynamically according to the change of task times thatdesign resources have taken part in. This provides quantitative design ability assess methodfor agglomeration and allocation of substantial design resources. Moreover, access andcalling ways of virtualized design resources are detailed, which provide virtualizationmethod for the organization, agglomeration and scheduling of design resources.Secondly, together with the definitions of relative concepts and the proofs of thecomposability and detachability of resources agglomeration entity, a detailed analysis ondesign resources agglomeration is carried out. As a result, the theoretical base of designresources agglomeration is established. Two design resources agglomeration methods aredeveloped in order to realize large-scale sharing of design resources, rational reuse ofdesign knowledge and high-efficiency utilization of design ability. One of them is amodularization agglomeration method oriented to knowledge design resources. In this method, knowledge design resources are encapsulated by modeling packaging methodbased on WCF (Windows Communication Foundation) to generate design models whichare agglomerated to construct certain design module with clear input, output,communication interfaces and interactions. The other one is a unit agglomeration methodoriented to substantial design resources. VDU (Virtual Design Unit) is introduced toagglomerate substantial design resources, such as designers, computers, equipment,hardware and software, in the distributed design environment, which is considered as thebasic execution unit of complex human-interaction tasks. VDUs are allocated tocorresponded design tasks by certain design task scheduling algorithm, which can play fullrole of design ability of substantial design resources. Both of methods provide multiple taskexecution entity selections for design task scheduling of missile product design process.Thirdly, key factors of design flow are defined and analyzed, and the detachability andcomposability of design flow are derived and proved. A missile design flow ontology modeloriented to multiple task execution ways is established in order to meet the diversity ofmissile’s design requirements and adapt multiple design resources agglomeration methods.It can describe the key factors and relationships among them accurately in design flow.According to the ontology model, customization process of design flow is displayed basedon Xml file followed by the establishment of synergy and management framework ofdesign flow. To schedule complex human-interaction tasks reasonably, a hybrid design taskscheduling method combined ACO (Ant Colony Optimization) and GA (Genetic Algorithm)is developed which can meet the “low cost&&high efficiency” demands ofMulti-task/Multi-VDU scheduling problem. Moreover, the validity of this method is provedby a design task scheduling case.Furthermore, missile design process is analyzed from the perspective of missileproduct life, and typical missile collaboration modes and missile overall integrated designmode are also summarized. Aimed to realize large-scale sharing, high-efficiency reuse andreasonable agglomeration of design resources, MIDSP-MAMDR architecture is established.In addition, combined with multi-level and multi-granularity integration demands of missileproduct design data, a series of design data models and databases are established to provide data support for conceptual design process, specification design process and simulation&&Test process.At last, a prototype platform is developed to test the validity of MIDSP-MAMDRarchitecture and key technologies which are missile product data models, design resourcesvirtualization methods, design resources agglomeration methods, design flow model, designtask scheduling method and design process information visualization scheme. Based on thefunctions of MIDSP-MAMDR prototype platform, the validity of MIDSP-MAMDRarchitecture and key technologies is demonstrated generally.