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Digital Human Modeling in Usability
Published in Marcelo M. Soares, Francisco Rebelo, Tareq Z. Ahram, Handbook of Usability and User Experience, 2022
SIEMENS JACK (Raschke & Cort, 2019) has been used in a wide array of applications, and is well integrated into the SIEMENS product life cycle management (PLM) product suite, a comprehensive product design and simulation environment. While it is integrated with the SIEMENS NX CAD software for product design, it also sits in SIEMENS Teamcenter where a large amount of data can be visualized in a tessellated format to represent complete systems, such as a complete vehicle including the driver. JACK is also integrated into SIEMENS Process Simulate, where task sequencing, assembly operations, automation or robotic interaction are simulated. In its stand-alone version (Figure 13.2), JACK has a task simulation builder module which allows the software to automatically animate the DHM based on high-level task descriptions and environmental constraints. The task simulator then independently produces a report on a range of ergonomic factors, such as strength requirements, postural loading, times or distances. JACK integrates with VR and motion capture systems to position and control the DHM.
CAD tools for knowledge based part design and assembly versioning
Published in Klára Szita Tóthné, Károly Jármai, Katalin Voith, Solutions for Sustainable Development, 2019
K. Nehéz, P. Mileff, O. Hornyák
Based on an in-depth study of the manufacturing processes at our industrial partner, two areas could be highlighted that contained potential for process enhancement and both areas are linked to the product design phase. The company uses the Siemens NX CAD system for product design, so the purpose of research and development is to design and develop two software components integrated into Siemens NX. With their help, the design and implementation processes of some products and complete assemblies can be made more efficient by introducing an automated solution. In order to develop software modules for the Siemens NX system, it is essential to have a detailed understanding of how the system works. Prior to the development process, the appropriate technology and the programming interface that is advantageous for the modules that can be integrated into the system should be selected. Visual Basic is the programming language most supported by Siemens NX, which contains many useful programming library packages (APIs).
Modeling and virtual prototyping
Published in Fuewen Frank Liou, Rapid Prototyping and Engineering Applications, 2019
An example of virtual prototyping software for product design is Siemens NX. The mechanism models of NX can be defined directly by information from Master Assembly, including solid geometry and inertia properties. Rigid bodies are automatically created as joints are created, and constraints are defined simply by selecting appropriate topology on assembly or subassembly instances. Joints can also be created automatically from constraints, including revolute, translations, cylindrical, universal, spherical, planar, fixed, rack and pinion, screw, and constant velocity. Primitive joints can be used together with standard joints. For example, multi-joint capabilities enable the modeling of gears, cams, and followers. Motions and functions can be applied within the joint user interface. The software can also apply force fields, such as gravity and contact loads. Figure 3.45 shows an example. The components of the vehicle and mechanism were assembled and constrained in the 3D model. After constraining the components with the desired joints, the mechanism can be manipulated with respect to the constraints. Figure 3.46 shows another example of landing gear design in a tight space constraint.
Review of CAD-model capabilities and restrictions for multidisciplinary use
Published in Computer-Aided Design and Applications, 2018
Tim Heikkinen, Joel Johansson, Fredrik Elgh
Almost all the techniques presented above for extending the CAD-models were used at each case-company, except Annotations (although this was planned for in the future in Company B). To which extent each company used the different techniques can be seen in Tab. 2 (see Tab. 1 for more information about the different techniques). Company A used SolidWorks and Companies B and C Siemens NX.