Digital twins represent real objects or subjects with their data, functions, and communication capabilities in the digital world. As nodes within the internet of things, they enable networking and thus the automation of complex value-added chains. The application of simulation techniques brings digital twins to life and makes them experimentable; digital twins become experimentable digital twins (EDTs). Initially, these EDTs communicate with each other purely in the virtual world. The resulting networks of interacting EDTs model different application scenarios and are simulated in virtual testbeds, providing new foundations for comprehensive simulation-based systems engineering. Its focus is on EDTs, which become more detailed with every single application. Thus, complete digital representations of the respective real assets and their behaviors are created successively. The networking of EDTs with real assets leads to hybrid application scenarios in which EDTs are used in combination with real hardware, thus realizing complex control algorithms, innovative user interfaces, or mental models for intelligent systems.

中文翻译：

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可试验的数字孪生-用于工业4.0的基于仿真的简化系统工程

数字双胞胎通过其在数字世界中的数据，功能和通信能力来代表真实的物体或主体。作为物联网中的节点，它们可以实现联网，从而实现复杂的增值链的自动化。仿真技术的应用使数字双胞胎栩栩如生，并使它们具有实验性。数字孪生成为实验性数字孪生（EDT）。最初，这些EDT仅在虚拟世界中相互通信。最终形成的相互作用的EDT网络模拟了不同的应用场景，并在虚拟测试平台中进行了仿真，从而为基于综合仿真的系统工程提供了新的基础。它的重点是EDT，在每个应用程序中都将更加详细。因此，依次创建了各个实际资产及其行为的完整数字表示。EDT与实际资产的联网导致混合应用场景，其中EDT与实际硬件结合使用，从而实现了复杂的控制算法，创新的用户界面或智能系统的思维模型。