D-ETV：Digital Experiment, Testing and Verification

doi:10.3901/JME.2024.15.227

Abstract

Abstract: Experiment, testing and verification (ETV) is a general method to understand the fundamental properties and performance of physical objects. ETV results are capable of providing significant reference for decision-making in various stages of the physical objects’ lifecycle. The five phases for the development of ETV is summarized firstly according to the characteristics of typical products and systems, including physical ETV, physical-digital ETV, digital-physical ETV, digital-physical fusion ETV, and digital ETV(D-ETV). Then, the challenges for future development of D-ETV are analyzed, based on the requirements of D-ETV such as accuracy, efficiency, full-coverage, low costs and security. The concept of D-ETV is further explored, the architecture, maturity model, common application process, technology architecture and application system framework of D-ETV are also proposed. Finally, the ten application prospects are introduced according to the proposed architecture and technologies, including digital flight testing, digital wind tunnel experiment, aircraft engine digital testing, digital battlefield decision verification, high-end CNC machine tool digital verification, satellite manufacturing digital verification, digital space station performance testing, recyclable rocket digital verification, nuclear power plant safety digital testing, underwater equipment performance digital verification. The work of this study is expected to provide inspiration and reference for the development of D-ETV, and better meet the requirements on ETV of physical objects during the whole lifecycle.

Key words: digitization, experiment, testing, verification, digital engineering, digital-physical fusion

CLC Number:

I253

TAO Fei, GAO Pengfei, ZHANG Chenyuan, YI Hang, ZOU Xiaofu, WANG Yanlong, ZHANG Jiankang, ZHANG He, LIU Weiran, WANG Kaixuan, YANG Chunxia. D-ETV：Digital Experiment, Testing and Verification[J]. Journal of Mechanical Engineering, 2024, 60(15): 227-254.

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