CN105893658A - Complex product ecological network modeling method based on complex network - Google Patents

Complex product ecological network modeling method based on complex network Download PDF

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CN105893658A
CN105893658A CN201610182456.3A CN201610182456A CN105893658A CN 105893658 A CN105893658 A CN 105893658A CN 201610182456 A CN201610182456 A CN 201610182456A CN 105893658 A CN105893658 A CN 105893658A
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product
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population
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CN105893658B (en
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郝泳涛
张伟
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Tongji University
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    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/30—Circuit design
    • G06F30/36—Circuit design at the analogue level
    • G06F30/367—Design verification, e.g. using simulation, simulation program with integrated circuit emphasis [SPICE], direct methods or relaxation methods

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Abstract

The invention relates to a complex product ecological network modeling method based on a complex network. The method comprises the following steps: 1) adopting a constructive solid geometry to establish the complex network of the complex product; 2) taking a product individual as an object, and combining with the environment information of the product individual to establish a product element; 3) taking the realization of the same function as a classification standard to form a product population by one or a plurality of product individuals with the same structural characteristic, and combining with the environment information of the product population to establish a product cluster; 4) taking the implementation of a specific function as a classification standard, forming a product population by one or a plurality of product populations, and combining with the environment information of the product population to establish a product body; and 5) on the basis of the complex network, establishing the product ecological network model of the complex product. Compared with the prior art, the complex product ecological network modeling method disclosed by the invention simplifies the complexity of traditional product model design, establishes the product ecological network model to reflect the exchange and the transfer of the product element on the aspects of substance, energy and information, and achieves a purpose of intelligent design and evolution.

Description

A kind of complex product ecological network modeling method based on complex network
Technical field
The present invention relates to computer utility, engineering design exploitation and product intelligent design field, especially relate to one Plant complex product ecological network modeling method based on complex network.
Background technology
In ecology, ecosystem refers to both biology and place environment thereof and interacts produced one Metastable system.Ecosystem can adapt to the complication system of external environment change by internal process of self-organization, There is self-organizing, adaptive feature.Population is ingredient important in ecosystem, plants for any one Group, the existence of each individuality all relies on external environment, and each individuality in population is individual (same with other One population, or other populations), and there is energy in inorganic environment, the exchange of material or transmission.
In ecosystem, the energy transmission between population and population is to carry out in the way of food chain.So-called food chain Refer to the chain-type relation connected with one another closely formed in nutrition relationship between different plant species in ecosystem, material With energy along food chain, transfer to senior species from rudimentary species one by one, along food chain population at individual Quantity reduce step by step, population density reduces step by step, and proliferative speed slows down step by step.So with the individuality of biotic population Quantity compares and defines the bottom narrow ecological pyramids of wide upper portion.
The Evolutionary Design of complex product (such as: electromotor) relates to multiple parts, be one complicated changeable Amount optimization problem, if using traditional genetic algorithm, it may appear that encode tediously long, convergence rate is slow, effect of optimization The problem of difference.By contrast ecosystem, it is possible to find complex product and ecosystem have phase in function, structure Like property: they are all made up of multiple individuality, having the internal organizational structure of complexity, system presents higher complexity； In certain circumstances, system has stable organizational structure, is in the state of the energy balance；System is by individuality Between mass exchange, energy Flow and information transmitted certain function.
It is in complex product Evolutionary Design with the evolutionary process of ecosystem also there is similarity: population at individual Change include births & deaths, move into, move out, the cycle such as evolution, product individuality have simultaneously generation, evolution, Eliminate the life cycle disappeared；As food chain between biotic population with environment, biotic population, energy Flow relation It is present in complex product.Product and environment carry out material, energy and information exchange thus adapt to environment.
In complex product, by the extraction of product parts and decomposition, all of by voxel structured approach definable Product parts, and the complex network that whole complex product is made up of each part.Complex network is by node and limit The X-Y scheme of composition.From graph theory, network G=(V, E) refers to by a point set V (G) and limit collection E (G) One figure of composition, and each edge in E (G) has a pair point in V (G) (u, v) correspondence therewith；From statistics thing Seeing in reason, network is a system containing the most individual and individual interphase interaction, is certain phenomenon Or certain relation abstract formed for individual and individual interphase interaction for describing this phenomenon or relation Figure.
The complexity of complex network derives from three aspects: (1) node complexity.The most only non-by between node The linear complicated system action caused that interacts, such as fork and chaos etc.；(2) structural complexity.Composition is multiple Structural relation between the element of miscellaneous system is the most irregular, the most nonrandom, but falls between, and this Structural relation can also change over, and affects the behaviour that system entirety is manifested, and is system complexity One of deciding factor；(3) the influencing each other of various complexity factor.
Complex network G=(V, E) refers to the figure being made up of a point set V (G) and limit collection E (G), and Each edge in E (G) has a pair point in V (G), and (u, v) corresponding therewith, in G=(V, E), V is the finite of summit Nonempty set, E is the finite aggregate on summit couple in V (referred to as limit).Generally, also by figure G vertex set and Limit collection is designated as V (G) and E (G) respectively.E (G) can be empty set.If E (G) is empty, then figure G only have summit and There is no limit.For a product having 9 parts, shown in its network graph representation Fig. 1, in Fig. 1, A-J is summit Collection V, R () is limit collection E.
Therefore, how the concept of ecosystem is incorporated complex network and in design that complex product is evolved, real Now product design based on complex product ecological network, significant.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and provide a kind of based on complex web The complex product ecological network modeling method of network, simplifies the complexity of traditional product modelling, sets up Products Eco It is first in material, energy, the exchange of information and transmission that network model carrys out reactor product, reaches intelligent design and evolution Purpose.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of complex product ecological network modeling method based on complex network comprises the following steps:
1) voxel structure (CSG:Constructive Solid Geometry) method is used to set up the complexity of complex product Network, described complex network includes the limit collection between vertex set and the product individuality that product is individual；
2) individual as object with product, the environmental information that bonded products is individual, set up product unit；
3) to realize identical function as criteria for classification, the product individuality of one or more identical architectural characteristics is constituted One Product Population, the environmental information of bonded products population, set up product bunch；
4) to realize specific function as criteria for classification, one or more Product Populations are constituted a product group, knot Close the environmental information of product group, set up product body；
5) the Products Eco network model of complex product, described Products Eco network model is set up based on complex network Including product body, product unit and product unit between limit collection.
Limit collection between described product individuality and the limit collection between product unit are equal, the limit set representations between product individuality Assembly relation between product individuality.
The expression-form of described product unit is as follows:
PU={pui,Sunit,Funit,PEunit}
Wherein, puiRepresent that product is individual, SunitRepresent the architectural characteristic information that product is individual, FunitRepresent that product is individual Function information, PEunitRepresent the environmental information residing for product individuality.
The expression-form of described product bunch is as follows:
PG={pgi,Npg,Fg,∪gpu,PEg}
Wherein, pgiRepresent Product Population, NpgN represents the quantity that in Product Population, product is individual, FgRepresent NpgN The function that the Product Population of individual product individuality composition is had, ∪gPu represents the product individuality collection in Product Population Close, PEgRepresent the environmental information residing for Product Population.
The expression-form of described product body is as follows:
PC={pci,Npc,Fc,∪cpg,∪cpu,PEc}
Wherein, pciRepresent product group, NpcRepresent the individual set number with Product Population of product, F in product groupc Represent the concrete function of product group, ∪cPg represents the set of the Product Population of composition product group, ∪cPu table Show is the product group of individuals of composition product group, PEcRepresent the environmental information residing for product group.
The expression-form of described environmental information is as follows:
PE={pei,tpe,Ne,∪ein,∪eout}
Wherein, peiRepresent Product environment for object, tpeRepresent the moment corresponding with Product environment, NeRepresent ring The number of composing factor, ∪ in bordereIn represents the internal influence factor of environment, ∪eOut represents the external action of environment The factor.
The internal influence factor of described environment and the external action factor of environment all include composing factor, composing factor The set of the relation that affects between weighing factor and composing factor and object.
Described step 5) also include step 6 afterwards), particularly as follows: obtain and complex product according to product design demand The corresponding environmental information after change, obtains and product body, product bunch, product successively based on Products Eco network model Environmental information after the change that product unit is corresponding, according to the environment after the change that product body, product bunch, product unit are corresponding Information carries out product body, product bunch, the design of product unit.
Compared with prior art, the invention have the advantages that
1) in order to reduce the complexity of traditional product modelling, the present invention introduces ecology in complex product models Systems Theory, application complex network model create Products Eco network model, come reactor product unit material, energy, The exchange of information and transmission, reach the purpose of intelligent design and evolution.
2) complex product is divided into product unit, product bunch and product body, the environment comprising environmental information by the present invention Information is the summation of all non-product elements around, including directly or indirectly affect the existence of product colony various because of Element, during product design, understands the environmental information of the change of product bunch, according to product by the environmental information of product body Bunch the environmental information of change understand the environmental information of change of product unit, and then minimum unit product unit can be entered Row designs targetedly, it is to avoid the subjective factors of artificial design, it is achieved systematization, modular design.
3) envirment factor is divided into the internal influence factor and the external action factor by the present invention, corresponding direct or indirect Affect the various factors of product colony existence, the product design scheme of two-way can be realized: change the external action factor Product design scheme and the product design scheme of the change internal influence factor, it is adaptable to different designs demand, practicality By force, applied range.
Accompanying drawing explanation
Fig. 1 is complex web schematic diagram；
Fig. 2 is the flow chart of the inventive method；
Fig. 3 is the exploded view of annexation between piston, connecting rod, bent axle in embodiment；
Fig. 4 is the Products Eco network model schematic diagram using the inventive method to obtain in embodiment.
Detailed description of the invention
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with the technology of the present invention side Implement premised on case, give detailed embodiment and concrete operating process, but the protection model of the present invention Enclose and be not limited to following embodiment.
As in figure 2 it is shown, a kind of complex product ecological network modeling method based on complex network comprises the following steps:
1) in complex product, each complex product is decomposed by taking case body can draw measurements of the chest, waist and hips product Measurements of the chest, waist and hips voxel, voxel represents indivisible part in complex product.In Products Eco network, use voxel Structured approach, defines product atom, sets up the complex network of complex product, and complex network includes the summit that product is individual Limit collection between collection and product individuality, the limit collection between product individuality and the limit collection between product unit are equal, product The assembly relation between the set representations product individuality of limit between body, raw for setting up the product of "smart" products energy Flow State network model prepares.
2) product individuality is the minimum individual of composition product, including individual structure, function, food chain Individual information, therefore, individual as object with product, the environmental information that bonded products is individual, set up product unit (Product Unit, PU), product unit is " product parts ": the undecomposable separate single with dismounting of composition product Position.
The expression-form of product unit is as follows:
PU={pui,Sunit,Funit,PEunit}
Wherein, puiRepresent that product is individual, SunitThe information such as the architectural characteristic that expression product is individual, FunitRepresent product The function information of body, PEunitRepresent the environmental information residing for product individuality, including individual food chain information, energy Amount flowing information etc..As a screw can be as a product individuality.
3) in Product Population, product is individual function, architectural characteristic must be identical, and Product Population is composition product Ultimate unit, including individual amount, individual bunch, the information such as population environment, therefore, realizing identical function be Criteria for classification, constitutes a Product Population, bonded products population by the product individuality of one or more identical architectural characteristics Environmental information, set up product bunch (Product Group, PG), product bunch i.e. " product parts bunch ": product Or product component has the product group of individuals of the characteristics such as identical function structure.
The expression-form of product bunch is as follows:
PG={pgi,Npg,Fg,∪gpu,PEg}
Wherein, pgiRepresent Product Population, NpgN represents the quantity that in Product Population, product is individual, FgRepresent NpgN The function that the Product Population of individual product individuality composition is had, ∪gPu represents the product individuality collection in Product Population Close, PEgRepresent the environmental information residing for Product Population.In product or parts, all spiral shells realizing same function Silk can form a Product Population.
4) product group can be a product individuality, can be one or more Product Population set, all of Product group atom composition realizes specific function, therefore, to realize specific function (purposes) as criteria for classification, and will One or more Product Populations constitute a product group, the environmental information of bonded products group, set up product body (Product Community, PC), product body is " product component ": realize certain certain function in product systems The set of product parts.
The expression-form of product body is as follows:
PC={pci,Npc,Fc,∪cpg,∪cpu,PEc}
Wherein, pciRepresent product group, NpcRepresent the individual set number with Product Population of product, F in product groupc Represent the concrete function of product group, ∪cPg represents the set of the Product Population of composition product group, ∪cPu table Show is the product group of individuals of composition product group, PEcRepresent the environmental information residing for product group.Such as key Dish is made up of multiple button individualities, and its specific function is in order to realize the input action of computer, and keyboard can be as calculating The product group of machine product.
Product environment refers to the summation of all influence factors around a certain specific products individuality or Product Population, including directly Or the various factors of remote-effects products colony existence.For Products Eco network, Product environment refer to around all The summation of non-product element, including the various factors directly or indirectly affecting the existence of product colony.Environment is product unit Element provides the change in design environment again of material and energy, i.e. product to determine.
Environment is directed to certain special object, changes over and changes.Therefore, above-mentioned middle PEunit、PEg、PEc Corresponding environmental information primary expression form is as follows:
PE={pei,tpe,Ne,∪ein,∪eout}
Wherein, peiRepresent Product environment for object, tpeRepresent the moment corresponding with Product environment, NeRepresent ring The number of composing factor, ∪ in bordereIn represents the internal influence factor of environment, ∪eOut represents the external action of environment The factor.Factor of influence refers to individuality, population, group or other surrounding material factor, the then ring directly related with object The internal influence factor in border and the external action factor of environment all include composing factor, the weighing factor of composing factor and The set of the relation that affects between composing factor and object, composing factor is the biggest to object influences, the impact of composing factor Weight is the biggest.
5) set up the Products Eco network model of complex product based on complex network, Products Eco network model includes Limit collection between product body, product unit and product unit, it is known that ecosystem includes product factors and environmental factors thereof, Product factors includes product individuality, Product Population, product group, product systems etc., environmental factors include environment, Product food chain etc., all factors generate Products Eco network, i.e. in certain spatial dimension, different product Influence each other by material, energy, the exchange of information and transmission, mutually select between component, externally realize The complete function unit of certain function is referred to as Products Eco network, and corresponding Products Eco network model is substantially The complex network being made up of by material, energy, the exchange of information and transmission product unit.
6) environmental information after the change corresponding with complex product is obtained according to product design demand, raw based on product State network model obtains the environmental information after the change corresponding with product body, product bunch, product unit successively, according to product Environmental information after the change that product body, product bunch, product unit are corresponding carries out product body, product bunch, the setting of product unit Meter.
To sum up, the present invention introduces theories of ecosystem in complex product models, and application complex network model creates produces Product ecological network model, is presented dynamic communication chain network by Products Eco network model, it is achieved "smart" products set Meter.
Products Eco network is made up of product body and environment, and wherein product body is the set of broadly product bunch, produces Product bunch are the product unit i.e. set of product parts, by exchange and the transmission of material information between different product units, Influence each other, interrelated.As automobile engine is a complete Products Eco network, with piston in electromotor Three structure example such as-rod-crankshaft, build electromotor ecological network, wherein, three, piston-rod-bent axle Annexation between structure is as shown in Figure 3.
Using the inventive method to set up Products Eco network, at product body: in connecting rod, product bunch includes connecting rod, company Bar bolt, connecting rod bearing shell.Each connecting-rod bolts or connecting rod bearing shell are product bodies, and whole electromotor is ecological The composition of network is as shown in table 1.
Table 1 electromotor ecological network composition structural table
According to the information of table 1, the electromotor ecosystem that piston-rod-bent axle is constituted can be obtained, such as Fig. 4 institute Show.In Fig. 4,11 represent piston ring, and 12 represent piston, and 13 represent piston pin, and 21 represent connecting rod, 22 Hes 25 represent connecting rod bearing shell, and 23 represent connecting rod cap, and 24 and 26 represent connecting-rod bolts, and 31 and 33 represent rod journal, 32 and 35 represent balance weight, and 34 represent crank.When driving force during needs change electromotor ecosystem, according to Products Eco network can design the volume size etc. of piston.

Claims (8)

1. a complex product ecological network modeling method based on complex network, it is characterised in that include following Step:
1) using voxel structured approach to set up the complex network of complex product, described complex network includes product individuality Limit collection between vertex set and product individuality；
2) individual as object with product, the environmental information that bonded products is individual, set up product unit；
3) to realize identical function as criteria for classification, the product individuality of one or more identical architectural characteristics is constituted One Product Population, the environmental information of bonded products population, set up product bunch；
4) to realize specific function as criteria for classification, one or more Product Populations are constituted a product group, knot Close the environmental information of product group, set up product body；
5) the Products Eco network model of complex product, described Products Eco network model is set up based on complex network Including product body, product unit and product unit between limit collection.
A kind of complex product ecological network modeling method based on complex network the most according to claim 1, It is characterized in that, the limit collection between described product individuality and the limit collection between product unit are equal, between product individuality Assembly relation between the set representations product individuality of limit.
A kind of complex product ecological network modeling method based on complex network the most according to claim 1, It is characterized in that, the expression-form of described product unit is as follows:
PU={pui,Sunit,Funit,PEunit}
Wherein, puiRepresent that product is individual, SunitRepresent the architectural characteristic information that product is individual, FunitRepresent that product is individual Function information, PEunitRepresent the environmental information residing for product individuality.
A kind of complex product ecological network modeling method based on complex network the most according to claim 1, It is characterized in that, the expression-form of described product bunch is as follows:
PG={pgi,Npg,Fg,∪gpu,PEg}
Wherein, pgiRepresent Product Population, NpgN represents the quantity that in Product Population, product is individual, FgRepresent NpgN The function that the Product Population of individual product individuality composition is had, ∪gPu represents the product individuality collection in Product Population Close, PEgRepresent the environmental information residing for Product Population.
A kind of complex product ecological network modeling method based on complex network the most according to claim 1, It is characterized in that, the expression-form of described product body is as follows:
PC={pci,Npc,Fc,∪cpg,∪cpu,PEc}
Wherein, pciRepresent product group, NpcRepresent the individual set number with Product Population of product, F in product groupc Represent the concrete function of product group, ∪cPg represents the set of the Product Population of composition product group, ∪cPu table Show is the product group of individuals of composition product group, PEcRepresent the environmental information residing for product group.
A kind of complex product ecological network modeling method based on complex network the most according to claim 1, It is characterized in that, the expression-form of described environmental information is as follows:
PE={pei,tpe,Ne,∪ein,∪eout}
Wherein, peiRepresent Product environment for object, tpeRepresent the moment corresponding with Product environment, NeRepresent ring The number of composing factor, ∪ in bordereIn represents the internal influence factor of environment, ∪eOut represents the external action of environment The factor.
A kind of complex product ecological network modeling method based on complex network the most according to claim 6, It is characterized in that, the internal influence factor of described environment and the external action factor of environment all include composing factor, group The set of the relation that affects between the weighing factor of the one-tenth factor and composing factor and object.
A kind of complex product ecological network modeling method based on complex network the most according to claim 1, It is characterized in that, described step 5) after also include step 6), particularly as follows: according to product design demand obtain with Environmental information after the change that complex product is corresponding, obtains and product body, product successively based on Products Eco network model Environmental information after the change that product bunch, product unit are corresponding, according to the change that product body, product bunch, product unit are corresponding After environmental information carry out product body, product bunch, product unit design.
CN201610182456.3A 2016-03-28 2016-03-28 A kind of complex product ecological network modeling method based on complex network Expired - Fee Related CN105893658B (en)

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