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14:35 | Model Based Systems Engineering (MBSE): Approach for Battery Management System (BMS) Interface Design ABSTRACT. Energy storage is a key enabling technology for next-generation directed energy and electric weapons systems (US Navy seeks Energy Magazine for directed energy weapons, 2019). Battery systems make up a significant portion of the energy storage technologies presently available. The inevitability of continued interaction with battery systems in the Navy provides a need to develop a standard method to manage and interface with current and future Navy Systems (Kuseian, 2013). The approach taken in this effort seeks to develop interface requirements for a wide variety of Battery Management Systems (BMS), in order to achieve safe and reliable operation of battery systems for the Navy. This endeavor employed Model Based Systems Engineering (MBSE) practices utilizing Systems Engineering Modeling Language (SysML), Cameo System Modeler (CSM), and the MagicGrid framework. NoMagic’s Cameo Systems Modeler and MagicGrid framework, were chosen by reason of availability, propriety, and capacity for future use. In addition, the MagicGrid framework provides a rigorous and industry-accepted structure suitable for the scope of this work. |
15:10 | The Digital Transformation Gap Widens Between OEMs and SMMs PRESENTER: Ashley Yarbrough ABSTRACT. Research indicates that there is a digital gap developing between Original Equipment Manufacturers (OEMs)/large 1st tier manufacturers and the lower supply chain tier of Small and Medium-sized Manufacturers (SMMs). A substantial portion of these SMMs exhibit little awareness or understanding of digital manufacturing technologies and their applications. This lack of readiness and awareness was revealed through industry interviews conducted in the MxD project - Digitally Enabling the Supply Chain and was confirmed through additional research to be an issue for SMMs globally. An online Digital Manufacturing Guide website has been developed to help bridge the gap between the OEM and SMM adoption of digital capabilities. Further study of the state of SMMs in the U.S. industrial base and the development of U.S. government policy are needed to assist SMMs in digital transformation. |
15:45 | The Cost of Enabling the Digital Thread PRESENTER: Matthew Bowden ABSTRACT. In a Model-Based Enterprise (MBE) environment, the Digital thread conveys data flows of a system or product between various phases of its lifecycle. During the design phase, the engineering function develops a Model-Based Definition (MBD) which provides a 3D digital-product model that defines the requirements and specifications of the system to downstream users. Researchers suggest the deployment of a Digital thread (by means of MBD) has significant benefits over using 2D drawing-based processes. In a paper titled ‘Testing the Digital Thread in Support of Model-Based Manufacturing and Inspection’, researchers developed quantitative evidence of these benefits by conducting a study comparing 2D drawing-based processes to 3D model-based processes for mechanical components. This paper extends upon that research by analyzing historical data from a complex manufacturing program to further compare the 2D drawing-based design process to the 3D model-based design process for mechanical components and mechanical assemblies. The results both validate the work of the aforementioned researchers by indicating that the design effort of 2D drawings are less than that of 3D MBD for mechanical components and suggests the trend is analogous for mechanical assemblies. |
16:20 | A next-Generation Model-Based Enterprise Maturity Index PRESENTER: Curtis Brown ABSTRACT. For any transition journey, one needs a vision for your organization to get started; one needs plans, for your organization to finish; and one needs an index for your organization to define a path for success. This paper introduces the next generation Model-Based Enterprise (MBE) Maturity Index that helps define and normalize the transition from a document-centric, drawing-based business to a part-centric, digital, model-based enterprise. The aim of this paper is to share NNSA’s efforts related to MBE and thus help increase the pace of progress in industry. |
14:35 | Capability Modeling for Smart Manufacturing Standards Development PRESENTER: Russell Waddell ABSTRACT. Data on capabilities are critical inputs to a variety of smart manufacturing use cases including process planning, job routing, and digital twins, but these data remain both poorly defined and badly siloed. We propose a basic capability model for CNC machine tools by extending the MTConnect standard to demonstrate: 1) how capabilities can be represented within an existing standard; and, 2) the mechanism for advancing capability definitions and models in a standards development organization. The extended MTConnect tags are deployed to a small multi-device manufacturing demonstration cell consisting of a PocketNC desktop 5-axis CNC mill and an Arduino-powered robot. |
15:10 | Model-Based Cybersecurity Engineering for Connected and Automated Vehicles: the FLOURISH Project PRESENTER: Theo Tryfonas ABSTRACT. Connected and automated vehicles (CAVs) represent a challenge for future transportation systems, as they generate a massive amount of data which may also include security threats and vulnerabilities for users. In this paper, we adapt a model-based systems engineering (MBSE) approach called the Internet of Things Security Modelling (IoTsecM) to address security challenges and system-level security critical issues in the domain of CAVs. Not only are connected autonomous vehicles considered, but also their interactions with other assets such as city infrastructure, sensors and traffic lights. The application is based on a real-life project, which identified innovative solutions related to connectivity, data analytics and safe design for CAVs in the UK. The objective of introducing IoTsecM into the project context was to provide a MBSE method to develop a systems architecture where the security mechanisms and controls are identified and modelled during the requirements stage in order to facilitate secure, trustworthy and private CAV technology development by design. |
15:45 | Consequences of Non-Semantic PMI PRESENTER: Evan Kessick ABSTRACT. Sharing information digitally between stakeholders is at the heart of a model-based definition, but the data out is only as good as the information that is captured. This presentation will explore differences of connecting Product and Manufacturing Information (PMI) to a variety of references in a model-based process in order to produce quality output with minimal or no consequences. We know that connecting PMI to all relevant references is important, but does it matter how those references were defined? How do these references differ when looking through the lens of a Coordinate Measuring Machine (CMM) or a Computer Numerically Controlled (CNC) program? What changes if you are connecting PMI to a hole feature in a native CAD model vs. the surface of a cylindrical feature in a neutral format? But wait! Some CAD systems split cylindrical features into two surfaces. What does that do to the definition? We will demonstrate that it isn’t hard to connect PMI to geometry, but what are the consequences if you don’t fully understand how the output will be used? This presentation will discuss common PMI data exchange scenarios, the potential for change in the way the data is communicated and how to identify such associated risk. |
16:20 | Visualizing Thickness and Clearance of 3D Objects PRESENTER: Masatomo Inui ABSTRACT. Thickness and clearance are two of most fundamental parameters during design processes of mechanical products. In this paper, we propose novel definitions of these two parameters about a three-dimensional object, named “volumetric thickness” and “accessibility clearance.” These new definitions have a range of applications in design processes. For example, the interior part of a solid object can be classified according to our volumetric thickness. Visualization based on such classification results allow us to better understand the thickness distribution of the three-dimensional object. In terms of clearance, this attribute in current industrial practice is typically measured as the distance between two shape elements. This definition, however, is basically incomplete for evaluating the clearance during assembly tasks that also require the depth information. Our accessibility clearance handles both the width and depth simultaneously and its visualization offers intuitive understanding about assembly capability of that product. |
14:35 | Using Text Visualization to Aid Analysis of Machine Maintenance Logs PRESENTER: Senthil Chandrasegaran ABSTRACT. Maintenance and error logs for machines in manufacturing organizations are typically written as informal notes by operators or technicians working on the machines. These logs are described using a combination of common language as well as internally-used abbreviations and jargon. Due to inconsistencies in the terminology used during error logging and in identifying root causes of issues, the data needs to be repaired before automated analyses can be effectively used. This requires a human to go through and repair/tag the data, disambiguate multiple terms, and sometimes assign additional tags to the data objects to aid automated classification. With some organizations storing over a million records of legacy maintenance report data, this is not entirely feasible. We introduce a visual analytic approach to help analysts sift through such heterogeneous datasets so that the inconsistent data can be tagged and categorized with minimum manual effort. Though such data typically includes metadata such as date, time, severity, machine IDs etc., we focus on the human-entered text descriptions. We use metrics such as word occurrence frequency and information-theoretic metrics to visually highlight common and uncommon issues and fixes that occur in the maintenance logs. We illustrate our approach with data from industry, and discuss future research directions to address scalability, metadata, and other approaches for grouping similar logs. |
15:10 | Trends in Model-Based Definition Based Assembly Information for High-Value Manufacturing PRESENTER: Kamran Goher ABSTRACT. 3D modeling is in use for the last many decades at various stages of the product lifecycle i.e., design, analysis, manufacturing, and inspection. In the modern era of Industry 4.0 where the high-value manufacturing industry is aiming at the digital thread, Model-Based Definition (MBD) has been considered as the heart of this transformation. However, MBD needs to be realized throughout the product lifecycle to get full advantage. In literature, considerable work has been found focusing on a shift from traditional 2D drawings to MBD. The majority of this work focused on design, manufacturing, and inspection stages, whereas, there is lack of work in the area of MBD based assembly information. This paper focuses on the current state of knowledge in MBD based assembly information, the trends, challenges, and future research directions |
15:45 | Using Text Analytics Solutions with Small to Medium Sized Manufacturers: Lessons Learned PRESENTER: Radu Pavel ABSTRACT. As Smart Manufacturing becomes more prevalent throughout industry, manufacturers are continuing to look for ways to more efficiently apply advanced data analysis methods to improve their decision processes. One promising area for improving decision making is through the use of natural language processing (NLP) methods on text based data in maintenance. Maintenance personnel often capture important information on the problems and repairs throughout the manufacturing facility in informal text. This information is key to improving maintenance decisions, such as scheduling, dispatching, diagnosis, and inventory management, but is difficult to access due to the informal and domain specific nature of the text. Methods are available to aid manufacturers with parsing through this information, however small-to-medium sized manufacturers (SMMs) still have issues in implementing NLP solutions in practice. This paper discusses lessons learned in applying a NIST developed methodology to SMMs maintenance data. |
16:20 | Leveraging standard geospatial representations for industrial augmented reality PRESENTER: Teodor Vernica ABSTRACT. Due to its tremendous potential, Augmented Reality (AR) has experienced a recent surge in adoption and integration within the manufacturing enterprise. While industrial AR has been successfully implemented and shown to have significant benefits in a variety of applications, proper use case development, application-specific evaluation, and data interoperability remain open research challenges. In this work, we demonstrate an AR-enabled use case that allows for remote monitoring and inspection of manufacturing systems by overlaying contextual information, such as machine execution data, over the video feed of the manufacturing floor. Additionally, we discuss challenges related to our prototype's implementation and potential opportunities to mitigate such issues through standard indoor geospatial representations. |
14:35 | How Model-Based Testing (MBT) Helps Increase Your MBE ROI PRESENTER: Thomas Hall ABSTRACT. The Verification and Validation of safety-critical software for use in Automotive, Medical, or Aerospace & Defense products can be a very expensive proposition. Model Based Testing allows you to test, validate, and document safety-critical software, catching defects and regressions early in development. We’ll discuss how the IBM Rhapsody Test Conductor add-on to IBM Engineering Systems Design Rhapsody allows the automated execution of test cases that validate Requirements traceability, as well as reporting Model coverage and Code coverage. We’ll take 10 minutes to look at a quick PowerPoint presentation to introduce the topic of MBT, describe the high costs of validating safety-critical software, and then describe the areas that MBT can enhance from a Return on Investment (ROI) viewpoint. We’ll share customer experiences (names redacted as needed) and set expectations and describe what to look for in the demonstration. We’ll then work through a 30 minute demonstration using Rhapsody Test Conductor to execute a Test Case comprised of Sequence diagrams, Statecharts, Flowcharts, as well as Source Code. We’ll showcase the demonstration results – reports describing Requirements Coverage, Model Coverage, Code Coverage. Also, we’ll show how that pass/fail test verdict is round-tripped back into the larger Test Plan. Test Conductor can increase ROI through higher quality, faster turnaround, more comprehensive testing and reporting. By automatically creating tests from the System, you get requirements coverage, model and source code coverage, early defect detection, visualization, and a significantly reduced maintenance effort. The test case development, frequent execution and minimal maintenance will greatly improve ROI. The supporting documentation includes the tool “Pre-Qualification” evidence, and describes the availability of a free validation suite to create this evidence. Also included is comprehensive documentation that maps Rhapsody workflow activities to safety standards including DO-178, IEC 62304, ISO 26262, IEC 61508, IEC 62304, and EN 50128. |
15:10 | Digital Mission Engineering ABSTRACT. Digital Mission Engineering is a developing field that integrates Mission, System, Cost and Analytical models to validate the product life cycle from conceptual design through development and ultimately mission operations. Through DME, the "right-level" of physics are brought as early as possible to decision makers to generate a trade study to ensure the highest probability of mission success. This presentation will highlight the key tenants of Digital Mission Engineering and how the defense industrial base is adapting DME into their product life cycle management to better serve their customers. |
15:45 | The MBE Vision Needs MBD to Reach Outside Its Current MCAD and PMI Comfort Zone PRESENTER: Pawel Chadzynski ABSTRACT. The vision of a Model Based Enterprise (MBE) is to have an authoritative and traceable source for all artifacts and activities throughout a product’s lifecycle. The promise of reduced costs, higher quality (including tighter adherence to governance and regulations), and improved productivity; drives this digital revolution. This. among other things, requires replacement of a paper-based communication system comprised of 2D drawings and related Product Manufacturing Information (PMI) with a model-based system. Much emphasis has been placed on the Model Based Design (MBD) element of MBE through creation of 3D CAD models with intelligent and dynamic views, that in addition to the full geometric description, are annotated with associated PMI—3D PMI. Barriers to achieving full MBE vision are largely twofold—cultural and technical. The world generally still views the 2D representation as authoritative and acceptance of models over “tribal knowledge” is slow. At the same time, the coming workforce is losing the capability to read “blueprints.” For MBD specifically, transfer of design information to manufacturing still relies heavily on the conversion of delivered 2D drawings into 3D Computer Aided Manufacturing (CAM), some 3D models with accompanying 2D PMI, and rarely, full 3D model transmissions directly from the CAD repositories. For all practical purposes, the MBD approach is still viewed as a process of injecting PMI data into 3D PDFs generated from 2D drawings. Authorship competency of sufficiently informative 3D models can still be considered in the early learning stages at best. Standards for representing MBD data are primarily in the proposal phase, remain far from widespread acceptance, and the communication of PMI through APIs is problematic. All of this, in an environment of ever-increasing complexity, governance creep, and new materials and manufacturing processes cries out for transformation. |
16:20 | A Paradigm Shift in Enterprise Software User Experience (UX) via a Visual Digital Twin ABSTRACT. A paradigm shift has occurred in the enterprise software User Experience (UX) by associating 3D product models with enterprise data from Design to Operate. This creates a Visual Index for every persona/end user in the digital supply chain and Industry 4.0. Historical views of enterprise data in the form of tables, list, hierarchies and exploded BOM’s have been replaced by a Model Based Enterprise where the 3D product model and visual analytics becomes the primary user interface to enterprise data, insights and actions. There are many benefits of leveraging the 3D product models, combined with graphs and data such as Visual Learning which increases information retention, enables higher-order thinking skills, and transcends language barriers. Virtually putting the manufactures physical products up front and center, in context of the business data to reduce the time to find and access information required to make key business decisions and transactions. In this product demonstration we will showcase the ability to leverage 3D product models coming from any Mechanical CAD (MCAD) package, associating each component and or assembly to enterprise data and systems such as customer experience, project and requirements management, systems engineering, simulation, design, procurement, supply chain, manufacturing, quality, asset management, IoT, and service to create a visual digital thread throughout the extended enterprise value chain. |