CN-121980672-A - Model-based design method for digital prototype of unmanned underwater vehicle electrodynamic system

CN121980672ACN 121980672 ACN121980672 ACN 121980672ACN-121980672-A

Abstract

The invention provides a model-based design method of a digital prototype of an unmanned submersible vehicle electrodynamic system, which comprises the steps of analyzing design requirements of the system, designing and constructing a prototype design requirement model, developing functional model research based on the design requirement model, designing and constructing a prototype functional model, developing structural design and simulation optimization work of a physical implementation layer based on the prototype functional model, designing and constructing a prototype performance model, fully coupling system-level indexes with sub-models of all groups of components contained in the prototype performance model, constructing a three-dimensional fused digital prototype model, carrying out product geometric design on all groups of components in the digital prototype model, constructing a prototype product geometric model, carrying out production and manufacture on all groups of components in the prototype product geometric model to obtain a sample prototype, and carrying out integrated joint adjustment on the sample prototype, and fusing the digital prototype model and the sample prototype.

Inventors

HUANG XIAOYAN
HU QINLONG
WANG XIAOLEI
LIU YABING
WU SONG
YANG SHUO

Assignees

中国船舶重工集团有限公司第七〇五研究所

Dates

Publication Date: 20260505
Application Date: 20251224

Claims (10)

1. A method for designing a model-based digital prototype of an electric power system of an unmanned submersible vehicle, the method comprising: S1, analyzing the design requirement of an electric power system of a large unmanned submersible vehicle, and designing and constructing a model machine design requirement model; S2, developing a functional model research based on the design requirement model, and designing and constructing a prototype functional model; S3, carrying out structural design and simulation optimization work of a physical implementation layer based on the model machine function model, and designing and constructing a model machine performance model; Step S4, fully coupling a system level index with each group of component sub-models contained in the prototype performance model to construct a three-dimensional fused digital prototype model; s5, carrying out product geometric design on each group of components in the digital prototype model, and constructing a prototype product geometric model; s6, producing and manufacturing each group of components in the geometric model of the prototype product to obtain a sample prototype, and carrying out integrated joint debugging on the sample prototype; And S7, fusing the digital prototype model and the real prototype to realize virtual-real interaction iterative optimization of the real prototype and the digital prototype.
2. The method for designing a model-based digital prototype of an electric power system of an unmanned submersible vehicle according to claim 1, wherein the step S1 specifically comprises: the method comprises the steps of identifying task requirements and system requirements of the design of an electric power system of the large unmanned underwater vehicle, developing task scene and target definition, determining detailed task requirements, and carrying out system function architecture design, logic architecture design, physical architecture design and behavior architecture design by utilizing an architecture design model so as to construct a prototype design requirement model.
3. The method for designing a model-based digital prototype of an electric power system of an unmanned submersible vehicle according to claim 2, wherein the step S2 specifically comprises: And developing a functional model research based on the design requirement model, defining system module division, function allocation, integrated interface and subsystem state behaviors, and establishing a mechanism model of a propulsion motor body, an inverter, a controller and a propeller based on a digital system model integration method so as to construct the prototype functional model.
4. The method for designing a model-based digital prototype of an electric power system of an unmanned submersible vehicle according to claim 3, wherein the step S2 specifically further comprises: and carrying out joint simulation analysis of interfaces, time sequences and states among subsystems by using the prototype functional model, and carrying out system-level multidisciplinary coupling evaluation on the system operation process so as to finish the optimization of key indexes of the power system.
5. The method for designing a digital prototype of the model-based unmanned submersible vehicle electric power system according to claim 4, wherein the step S3 specifically comprises determining an overall scheme after optimizing key indexes of the power system by using the functional model of the prototype, and further modeling the system, the subsystem and the equipment in a layered level to form the prototype performance model with single-disciplinary performance simulation, multi-disciplinary joint simulation and general quality characteristic analysis capability.
6. The method for designing a model-based digital prototype of an electric power system of an unmanned submersible vehicle according to claim 5, wherein the step S4 specifically comprises: And taking the model machine performance model as a core, and respectively coupling a current index, a rotating speed index, a power index and a torque index of a system level with a controller sub-model, an inverter sub-model, a motor sub-model and a propeller sub-model in the model machine performance model to construct a three-dimensional fused digital model machine model.
7. The method for designing a model-based digital prototype of an electric power system of an unmanned submersible vehicle according to claim 6, wherein the step S4 specifically further comprises: The method is characterized in that the environment conditions, the control instructions and the running states of the underwater unmanned underwater vehicle are used as inputs to realize unified scheduling and synchronous solving of a plurality of sub-models, and the working principle and the running process of a real power system are completely mapped, so that the performance and the reliability of the large underwater unmanned underwater vehicle electric power system running in a full working condition range under variable environment conditions and complex task instructions are evaluated.
8. The method for designing a model-based digital prototype of an electric power system of an unmanned submersible vehicle according to claim 7, wherein the step S5 specifically comprises: And carrying out product geometric design on all structural parts, system equipment and accessory finished products in the digital prototype model, wherein the built prototype product geometric model comprises a structural design model, an electrical design model and an assembly design model.
9. The method of designing a digital prototype of a model-based unmanned submersible electric propulsion system according to claim 8, wherein in step S5 the prototype product geometry model contains the production and manufacturing requirement information of the product, and the prototype product geometry model is presented in a system detail design tool.
10. The method for designing the model-based unmanned submersible vehicle electrodynamic system digital prototype according to claim 9, wherein the step S7 specifically comprises the steps of fusing the digital prototype model and the physical prototype, and performing real-time simulation and monitoring driven by measured data and state prediction driven by real-time change data so as to realize virtual-real interaction iterative optimization of the physical prototype and the digital prototype.

Description

Model-based design method for digital prototype of unmanned underwater vehicle electrodynamic system Technical Field The invention belongs to the technical field of design of large unmanned submersible vehicle electric power systems, and particularly relates to a model-based design method of a digital prototype of an unmanned submersible vehicle electric power system. Background Currently, an electric power system of an underwater unmanned underwater vehicle has complex system engineering with the characteristics of multiple cooperative professions, long design period, great research and development difficulty and the like, and the whole process and the whole period. The overall design of the electric power system of the underwater unmanned underwater vehicle generally adopts a system integration method such as a mother design method, a statistical data method, a standard design method and the like, a plurality of specialized collaborative designs are carried out based on documents, the design requirement of a complex power system is dynamically changed, but the system scheme is slow in response, so that the coordination and repeated iteration of the overall design process are caused, and the island of system design information, long design change period and low development efficiency are brought. With the high-speed development of advanced information communication technologies such as big data, digital twin, cloud computing and the like, model Based system engineering (Model Based SYSTEMS ENGINEERING, MBSE) is one of key technologies leading to digital design in the field of modern industry, especially in the fields of aircrafts, engines and systems, MBSE theory, methods, knowledge systems and informatization platform construction are comprehensively promoted, and a product development system taking a V-shaped Model and a system engineering flow set as guidance is established. The MBSE method is based on model system engineering, through formalized modeling means, can support activities such as system demand, design, analysis, verification and confirmation from a conceptual design stage, and continuously extends through the whole development process and subsequent life cycle stages. Therefore, how to provide a model-based design method for a digital prototype of an electric power system of an unmanned submersible vehicle is a technical problem to be solved in the field. Disclosure of Invention The invention aims to provide a design method of a model-based unmanned submersible vehicle electrodynamic system digital prototype. The invention provides a design method of a model-based unmanned submersible vehicle electrodynamic system digital prototype, which comprises the following steps: S1, analyzing the design requirement of an electric power system of a large unmanned submersible vehicle, and designing and constructing a model machine design requirement model; S2, developing a functional model research based on the design requirement model, and designing and constructing a prototype functional model; S3, carrying out structural design and simulation optimization work of a physical implementation layer based on the model machine function model, and designing and constructing a model machine performance model; Step S4, fully coupling a system level index with each group of component sub-models contained in the prototype performance model to construct a three-dimensional fused digital prototype model; s5, carrying out product geometric design on each group of components in the digital prototype model, and constructing a prototype product geometric model; s6, producing and manufacturing each group of components in the geometric model of the prototype product to obtain a sample prototype, and carrying out integrated joint debugging on the sample prototype; And S7, fusing the digital prototype model and the real prototype to realize virtual-real interaction iterative optimization of the real prototype and the digital prototype. Optionally, the step S1 specifically includes identifying task requirements and system requirements of the large unmanned submersible electric power system design, developing task scene and target definition, determining detailed task requirements, and performing system function architecture design, logic architecture design, physical architecture design and behavior architecture design by using an architecture design model to construct a prototype design requirement model. Optionally, the step S2 specifically includes developing a functional model study based on the design requirement model, defining system module division, function allocation, integration interfaces and subsystem state behaviors, and building a mechanism model of the propulsion motor body, the inverter, the controller and the propeller based on a digital system model integration method, so as to build the prototype functional model. Optionally, the step S2 specifically further comprises the step of carrying out joint si