小记:Understanding the Affordability Benefits of Utilizing Additive Manufacturing (AM) for Legacy Liquid Rocket Engine Components and its Quantification Using Model-Based Systems Engineering (MBSE)
作者来自阿拉巴马大学亨茨维尔分校(美国)。
本次阅读关注涉及SysML的部分,不关注增材制造(AM)有关的内容。本文展示了一种分析火箭组件 MCC 表面粗糙度的方法,以及该表面粗糙度如何影响火箭发动机的性能。创建了 MATLAB 子程序来评估损失和性能,并运行在 SysML 中开发的基于模型的框架。然后使用 SSME 数据验证了该模型[30]。
在进行这项研究时,我们更好地了解了使用 AM 升级火箭发动机部件与火箭性能之间的权衡。在此过程中,还展示了基于模型的方法的功能。 在可负担性方面,如果工程师要做出明智的决策,需求可追溯性至关重要。例如,使用此模型的制造工程师可以更好地估计 AM 部件需要多少后处理才能满足性能要求。这可以进一步缩短部件的交付周期,或减轻试验台上的潜在故障,从而减少认证发动机的时间。此外,本文探讨的方面是建立一种全面的以模型为中心的可负担性方法,确保系统整个生命周期阶段的可追溯性和一致性。最后,这将有助于在系统生命周期的早期设想以故障为中心的方面,优化测试-失败-修复周期所花费的时间,实现可负担性。 可负担性和重新认证传统火箭发动机的问题取决于测试-失败-修复周期 ...
小记:Small Statellites Launcher Design Efficiency Improvement through the Application of Multidisciplinary Modeling and Simulation-based Systems Engineering
小记
作者来自马德里理工大学(西班牙)。
本文的目的是介绍马德里波利特海姆大学目前的研究,以提高小型空间发射器在初步概念阶段的设计效率,该研究基于MBSE方法中的一种新方法,该方法引入了高效和快速的模拟,通过寻找设计重量的最佳平衡来降低成本。在过去的十年中,基于模型的系统工程(MBSE)和并行工程(CE)方法和过程的实施提高了卫星设计的效率,减少了设计时间。
卫星的设计是基于子系统的纯粹功能分析分解,而空间发射器则需要更多的物理分析,因为其组件相互依赖的设计影响很大,需要大量的密集模拟和计算能力。这些仿真的计算时间要求使得卫星并行工程方法在空间发射装置设计中的应用效率低下。一种新的MBSE方法引入了高效和快速的模拟,可以填补现有的空白。
过去几年,由于虚拟建模可靠性的提高,系统仿真软件方法在所有工程领域的数量显著增加。它们的主要优势是缩短了开发时间,降低了与硬件错误相关的成本,在模拟世界和现实世界之间建立了桥梁。由于其历史背景,现有的关于模型和仿真 (M&S) 的文献在航天器设计中非常广泛。早期的建模和仿真支持了太空时代的发展,测试是验证空气动力学、控制律和结构设计的主要方法。 ...
笔记:Domain-specific languages for the automated generation of datasets for industry 4.0 applications
Domain-specific languages for the automated generation of datasets for industry 4.0 applications
作者来自西班牙坎布里亚大学
Abstraction
Data collected in Industry 4.0 applications must be converted into tabular datasets before they can be processed by analysis algorithms, as in any data analysis system. To perform this transformation, data scientists have to write complex and long scripts, which can be a cumbersome process. To overcome this limitation, a language called Lavoisier was recently created to fac ...
笔记:Design ontology for cognitive thread supporting traceability management in model-based systems engineering
Design ontology for cognitive thread supporting traceability management in model-based systems engineering
作者来自王国新和鲁金直团队。
Abstraction
Industrial information integration engineering (IIIE) is an interdisciplinary field to facilitate the industrial information integration process. In the age of complex and large-scale systems, model-based systems engineering (MBSE) is widely adopted in industry to support IIIE. Traceability management is considered the foundation of information management in MBSE ...
笔记:What makes a good modeling research contribution?
What makes a good modeling research contribution?)
作者是Richard F. Paige。
Abstraction
The modeling field is rapidly evolving and expanding to address new research topics and to connect with new disciplines. As such, what constituted a good modeling research contribution ten years ago may not be the same today. We try to distill some insights of what we (and the community we aim to represent) consider today as key elements of a good research paper in the field of software and systems modeling. Suc ...
笔记:Testing, Validation, and Verification of Robotic and Autonomous Systems:A Systematic Review
Testing, Validation, and Verification of Robotic and Autonomous Systems: A Systematic Review
作者是KCL的Hugo Araujo。
Abstraction
We perform a systematic literature review on testing, validation, and verification of robotic and autonomous systems (RAS). The scope of this review covers peer-reviewed research papers proposing, improving, or evaluating testing techniques, processes, or tools that address the system-level qualities of RAS.Our survey is performed based on a rigorous methodology structure ...
笔记:Model Transformation Development Using Automated Requirements Analysis, Metamodel Matching, and Transformation by Example
Model Transformation Development Using Automated Requirements Analysis, Metamodel Matching, and Transformation by Example
作者是KCL的Kevin Lano。
Abstraction
In this article, we address how the production of model transformations (MT) can be accelerated by automation of transformation synthesis from requirements, examples, and metamodels. We introduce a synthesis process based on metamodel matching, correspondence patterns between metamodels, and completeness and consistency analysis of matches. We ...
笔记:Early Validation and Verification of System Behaviour in Model-based Systems Engineering:A Systematic Literature Review
Early Validation and Verification of System Behaviour in Model-based Systems Engineering:A Systematic Literature Review
作者来自瑞典Mälardalen大学和Volvo建筑集团。
Abstraction
In the Systems Engineering (SE) domain there has been a paradigm shift from document-based to model-based system development artefacts; in fact, new methodologies are emerging to meet the increasing complexity of current systems and the corresponding growing need of digital workflows. In this regard, Model-Based Systems Engineering (MB ...