GB/T 36457-2018 (English Version)

Standard No.: GB/T 36457-2018
Language: Chinese, Available in English version
Release Date: 2018
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 36457-2018

Scope: This standard specifies the system framework, high-level model composition, high-level model representation, and high-level modeling process and construction criteria for complex product virtual prototype modeling. This standard is applicable to the construction and design of high-level system models during the development of virtual prototype systems.

Introduction

National Standard of the People's Republic of China GB/T 36457—2018

Modeling Method for Virtual Prototype of Complex Products

Standard Overview

This standard proposes a systematic modeling method to solve the multi-disciplinary, multi-level and multi-organization collaborative modeling and simulation problems in the development of complex products. Its core is to adopt a port-based modeling strategy to encapsulate heterogeneous simulation models into standardized components to achieve rapid construction and efficient collaboration.

Standard System Framework

Hierarchy	Description	Example
Meta-Meta-Model	Defines the basic elements of the meta-model, such as data structure and attributes.	Data structure, attributes
Metamodel	Instances of meta-metamodel, defining the basic elements of model description language, such as classes and objects.	Classes, objects
Model	Instances of metamodel, describing high-level models in specific application areas, such as airplane models.	“Pilot” class, “Plane” class
Model instance	Specific implementation of the model, defining the values of specific scenarios.	Pilot Tony, Su-27 aircraft, etc.

Composition of high-level models of virtual prototypes

Atomic Model

The atomic component model is the smallest functional module of a complex product virtual prototype, and its formal expression is:

$$ \mathrm{AM}:<\{\mathrm{Interface}\},\{\mathrm{Mapping}\}> $$ It consists of two parts: interface and mapping. The interface defines the input and output direction, timestamp and mode of the port; the mapping describes the relationship between the input port item set and the output port item set of the atomic model.

Composite Component Model

Composite component model is composed of multiple atomic components or composite components, which can be formally expressed as follows:

$$ \mathrm{CM}:<\{\mathrm{Interface}\},\{\mathrm{AM},\mathrm{CM}\},\{\mathrm{Coupling}\}> $$ It contains three parts: port, self-nested component model and connection: the definition of port and atomic component set is the same as 6.2; connection describes meta-association and meta-constraint relationship to ensure the consistency of heterogeneous models in simulation system.

High-level modeling process and construction criteria of virtual prototype

Modeling process:

Based on the principle of functional independence, hierarchical division of product object system is carried out.
Structural modeling is carried out according to system information description.
Behavioral modeling is carried out for the component models of the system.

Construction guidelines:

Simulation components provide standard interfaces for information exchange.
The association between simulation components is established through the connection between matching ports.
High-level models need to describe the scenarios of event interaction between simulation components.

Implementation recommendations

In order to effectively implement this standard, it is recommended to:

Adopt a hierarchical modeling strategy to ensure the separation of abstract levels of different models.
During the system development process, give priority to the use of standardized simulation components.
Establish a complete metamodel framework (M2F) to support multidisciplinary collaborative simulation.

GB/T 36457-2018 Referenced Document

GB/T 11457-2006 Information technology.Software engineering terminology

GB/T 36457-2018 history

2018 GB/T 36457-2018 Modeling method of complex product virtual prototype