CAD/CAM SOFTWARE
“Systems engineering is a comprehensive approach to product development that intelligently links re- quirements, early concepts, and performance char- acteristics,” noted Jim Rusk, senior vice president and chief technical offi cer, Siemens PLM Software (Plano, TX). “This important technology continues to evolve and for many manufacturers it has become a critical tool in helping develop products that are fast to market with on-target product characteristics.” Along with systems engineering, manufacturers
are also supporting new manufacturing technolo- gies, including additive manufacturing, Rusk said, as well as upstream functionality that facilitates design and optimization methods that result in designs that are tailored and unique to additive manufacturing capabilities. “The Digital Twin is a virtual model of the product, including information on the manufacturing process and production system that is connected to the real world to evaluate per- formance [not only product performance but also production
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Multiphysics simulation in Siemens PLM Software’s NX CAE tools shows critical features to verify thermal-mechanical or fl uid-structural behaviors in complex products like this aircraft engine model.
performance], etc.,” Rusk said. “This creates the opportunity to close the loop between the virtual and real worlds, which results in more accurate and optimized designs.” Other trends include multidiscipline and multiphysics simulation, Rusk said, with simulation solutions that combine different disciplines together—mechanical, automation, and electrical—to enable better product performance simulation and validation prior to hardware build. “This may be found in automation systems for factories, or in applications like mul- tibody dynamics combined with fl exibility for critical compo- nents and 1D control system simulation—like in vehicle ride controls,” Rusk said. “Furthermore, within simulation areas, the ability to combine critical simulation types together for multiphysics is key—including thermal/fl uid, thermal/struc- tural, and fl uid/structural behaviors.” In Siemens’ latest NX software for 2016, Rusk noted the company has added functionality including enhanced virtual commissioning of machines and factory lines; the NX Line De- signer, for modeling the production system layout for assembly lines; virtually confi guring plant equipment using point clouds; robotic machining applications to reduce the cost of machining; and scalable solutions for generation of high-quality rendering to support decision-making based upon the Digital Twin.
NC Simulation
Simulation advances at the NC cutting level also play a huge part in improving manufacturing processes, with highly realistic NC simulations that foolproof the process before cutting any metal. “Our customers continue to insist on more and more accurate simulation, especially in the domain of CNC control emulation [i.e., mimicking the behavior of the CNC’s logic]. As CNC control sophistication increases, so does the need to emulate the behavior in the factory or shop
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AdvancedManufacturing.org | March 2016
Image courtesy Siemens PLM Software
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