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1、附录附录一 Multi-disciplinary hypothesized prototype modeling and simulation technologyAuthor: PRC technical department article origin: MSC.SoftwareThis article embarked from the current product design process to the multi-disciplinary union simulation demand, has analyzed the product coordination design
2、 to the simulation technology three levels function demands, and drew out currently realizes the multi-disciplinary integrated simulation general method. The multi-disciplinary union simulation needs to control, the organization, the finite element and so on the different simulation environment inte
3、gration and the data exchange, MSC.Software provided most systematic and the integrity multi-disciplinary coordination simulation development environment, this article in detail introduced MSC. The Software multi-disciplinary hypothesized prototype modeling and the simulation solution, and has produ
4、ced the concrete example.1.multi-disciplinary unions simulations demandIt is well known, the modern product research and development flow is the multi- people team, the multi-disciplinary domain coordination design process. In product performance history, regardless of is the plan principle design,
5、the part level detailed parameter specification design, all involves to many different subsystems and the related discipline domain, these subsystems all have the oneself specific function and the unique design method, but between various subsystems then has the cross-coupling function, composes the
6、 integrity together the functional system. Chart 1 the modern product process involves many subsystems and the related discipline domainHow does the effective coordinated each subsystem design teams work, let between the team achieve information sharing, helps supply each other, and guarantees the s
7、ubsystem the design quality and the overall performance, the realization product design true integration harmonious cooperation assimilation, thus the enhancement rated capacity, saves the design cost, reduces the development cycle, this is an extremely important question.In order to achieve the abo
8、ve goal, we must satisfy following three levels the demand:First, has various subsystems and various disciplines domain effective integration simulation tool, thus guarantees various subsystems the design standard and the reliability:Chart 2 various disciplines domain different design toolSecond, ca
9、n realize between various simulations tool seamless integration and the data exchange, realizes the model conformity under the unification overhead construction;Third, in order to can coordinate and manage each design team, as well as mass data which produces in the design process, realization resou
10、rces optimization disposition, but also must have the simulation data and the flow management platform, realizes various disciplines domain true coordination to imitate.2. multi-disciplinary coordination simulations general realization method At present more general and the popular realization multi
11、-disciplinary integration simulation method mainly includes following three kinds:2.1 unions simulations type (Co-Simulation) The union simulation type is at present is general, also uses most one data exchange way, its data exchange principle like chart 3 shows, between two different simulations to
12、ols passes TCP/Way realization data exchange and transfer and so on TCP/IP.Chart 3 union simulation -like basic principleAfter between two different simulations tools through the union simulation way establishment connection, one contains the model may the result which calculates own transmit as the
13、 system input instruction for the model which another one establishes, this kind of instruction including the strength, the moment of force, the actuation and so on the typical signal, latter model the response quantity which produces in under this instruction function, like displacement, speed, acc
14、eleration and so on, also may feed back gives former the model, like this, the model information and the simulation data may in two between directional transmissions.The union simulation way model application includes: Poly some dynamics and control system (for example vehicle control), structure an
15、d air operated load (for example aeronautical dynamics analysis), and so on. This is one kind is easiest to establish and the realization integrated simulation way, has very strong general, but limits lies in processes the rigid system with difficulty, takes many to the system resources, certain sit
16、uation possible speeds to be slow.2.2 models transformations type (Model Transfer)Model transformation -like principle like chart 4 shows. Its main principle is transforms tool model for the specific form contains the model information the data file, for another tool in model transfer, thus realization information interactive. The typical data format like used in just shooting the coupling analysis the modality neutral documen
