Multi-disciplinary joint simulation system and method based on virtual time

A co-simulation, multi-disciplinary technology, applied in the field of virtual experiment simulation, can solve problems such as inability to invoke timing combination, inability to exhibit parallel or precise time-related behaviors, and inability to accurately simulate data interaction "timing".

Active Publication Date: 2021-06-18
成都赢瑞科技有限公司
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Problems solved by technology

[0006] The purpose of the present invention is to provide a multi-disciplinary joint simulation system and method based on virtual time, which solves the problem that the existing model integration method cannot show the parallel behavior of the simulated system in different time domain spaces or has precise time sequence correlation, and cannot simulate Various behaviors in the micro-time world (such as nanosecond level), it is impossible to organically combine the invocation timing of these models in different disciplines with the behavior simulation of their own disciplines, and it is impossible to accurately simulate the relationship between various discipline models under the actual system working conditions issues such as the "timing" of data interaction, to achieve more realistic virtual model integration and co-simulation

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  • Multi-disciplinary joint simulation system and method based on virtual time
  • Multi-disciplinary joint simulation system and method based on virtual time

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Embodiment 1

[0047] Below, the present embodiment further describes the present invention in conjunction with the accompanying drawings and specific implementation methods:

[0048] refer to figure 1 As shown, the present embodiment provides a multidisciplinary joint simulation system based on virtual time, including:

[0049] The FMU model loading module 1 is used to output the input tool requirements as FMU functional sub-models, and the functional sub-models are used as the input of the static architecture building blocks;

[0050] The integrated development environment 2 is used to assemble the input functional sub-models, describe the parameterized structure of each functional sub-model, obtain multiple single-disciplinary models, and combine the input single-disciplinary models with time-based construction The time series model of the system architecture is connected to obtain the redundancy mixed model;

[0051] The timing scheduler 3 is used to schedule the single-subject model c...

Embodiment 2

[0077] refer to figure 2 As shown, the embodiment of the present invention provides a multidisciplinary joint simulation method based on virtual time, including the following steps:

[0078] S1. Obtain the FMU function sub-model;

[0079] S2. Assemble the input functional sub-models, describe the parametric structure of each functional sub-model, and obtain multiple single-subject models;

[0080] S3. Connect the input single-disciplinary model with the time-series model of the system architecture based on the time dimension to obtain a redundant mixed model, and each single-disciplinary model is bound to a scheduling task;

[0081] S4. According to the virtual time corresponding to the single-subject model in the redundancy parallel task, the timing scheduler schedules the single-subject model corresponding to the minimum scheduling granularity in the current execution sequence;

[0082] S5. Use the timing modeling simulation scheduling engine to independently model the va...

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Abstract

The invention provides a multidisciplinary joint simulation system and method based on virtual time. The multidisciplinary joint simulation system comprises an FMU model loading module, an integrated development environment, a time sequence scheduler and a simulation verification platform. According to the multidisciplinary joint simulation method based on the virtual time, physical phenomenon models, computer software and hardware behavior models, chemical phenomenon models and the like occurring in different time and space are integrated and synthesized based on the virtual time, and the working condition of a complex system is simulated most truly. Therefore, the system architecture design can be completely evaluated and mastered in the initial stage of system design, and a great step is made towards the landing direction.

Description

technical field [0001] The invention relates to the technical field of virtual experiment simulation, in particular to a multidisciplinary joint simulation system and method based on virtual time. Background technique [0002] The design and synthesis of complex systems (aircraft, spacecraft, ships, vehicles, etc.) has always been the most critical and important link in system engineering. Traditional design methods and processes mainly rely on the designer's personal experience, which is limited to the design and verification of system / subsystem functions, and cannot carry out scientific design synthesis and demonstration of the system architecture at the early stage of the project. System architecture risks need to be solved in the physical synthesis stage It was only discovered, which led to complicated iterations and even project failures in the physical synthesis phase of the system. System virtual synthesis design and verification is an effective solution to this prob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F119/12
CPCG06F30/20G06F2119/12
Inventor 雷勇曹宏晖罗萌李坚定
Owner 成都赢瑞科技有限公司
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