NX Nastran Brochure
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Siemens PLM Software NX NASTRAN The premier FEA solver for computational performance, accuracy, reliability and scalability siemens.com/plm/nxnastran Product development challenges “In the aircraft and aerospace Siemens understands your product Understanding quality vs. cost business, there is no room for development challenges and performance trade-offs poor quality engineering.” Increasing product and market complex- Another issue companies cite is the Ben Terrell ity combined with global development need to better understand how design Perth engineering manager teams and reduced development trade-offs affect quality, cost and perfor- Aquila Engineering budgets create challenges for companies mance characteristics. The use of in every industry. physical testing of different prototype designs to understand these trade-offs Problems found too late in is time-consuming, costly and ultimately development impractical in today’s business The top development issue manufactur- environment. ers cite is that they find problems too late in the development cycle. Such problems Choosing the right simulation tools are extremely costly to fix through late Industry pressure to decrease develop- design and manufacturing changes, but ment time and improve quality is driving they are also costly in terms of lost best-in-class companies to increase use of revenue caused by delays in product simulation. However, choosing the right introductions. tools is key to achieving the business benefits of simulation. Companies Top product design challenges need to consider technology, scalability and integration when considering Problems/errors found too late 47% simulation tools: • The right technology ensures that Making trade-offs for cost, performance and quality 41% simulation can accurately represent the physical environment Frequent design changes 36% • Scalable solutions adjust to product complexity, high-performance Predicting product behavior in a Percentage of computing resources and a broad range real-world environment 28% respondents (n=157) Source: of users’ skill levels Workforce reduction/lack of Aberdeen Group • Integration with other simulation technical experts 24% April 2010 tools and with product development applications is important to both 0% 10% 20% 30% 40% 50% efficiency and effectiveness of the CAE solution 2 NX Nastran advantage “Siemens’ PLM technology The premier FEA solver Increase product quality has delivered significant An industry standard for over 40 years, NX Nastran enables engineers and business results, especially Nastran is a finite element solver for designers to rapidly evaluate many more in terms of our competitive stress, vibration, structural failure, heat design concepts than can be accom- advantage in achieving the transfer, acoustics and aeroelasticity plished with physical prototypes. highest quality products and analyses. Manufacturers as well as engi- Simulation allows engineers to better with a global reach.” neering suppliers in aerospace, automo- understand and optimize design trade- tive, electronics, heavy machinery, medi- offs for quality, cost and performance. Arun Gupta General Manager cal device, and other industries rely on Design and Engineering NX™ Nastran® software for their critical Reduce development and Flovel Group engineering computing needs so they can warranty costs produce safe, reliable and optimized Simulation with NX Nastran is credited designs within increasingly shorter with driving millions of dollars out of R&D “In software, we can see where design cycles. costs because building a computer model the problem areas are before and digitally testing performance is building prototypes.” Develop products faster cheaper, faster and more effective than Paul Voerman Simulation with NX Nastran helps the physical prototyping processes it President engineers to find problems with product replaces. And with increased product Challenge b.v. designs earlier before conducting any quality, companies can save on potential costly physical tests. With NX Nastran, warranty costs. engineers can be confident their design will work when the first physical Siemens’ CAE vision and heritage prototype is tested. Our vision is to deliver engineering simulation solutions that drive product performance decisions across the complete product lifecycle. SDRC UGS SIEMENS Siemens PLM Software delivers on this vision by building upon our simulation heritage which spans over 40 years and I-deas NX CAE encompasses well known CAE brands such as I-deas™, NX CAE and NX Nastran. Teamcenter Simulation Process Management NX Nastran Nastran 3 Multiple solution domains – one solver “Nonlinear dynamics is a core NX Nastran solves most structural analy- Advanced material capabilities enable feature of NX Nastran; it has sis problems for linear and nonlinear users to simulate the collapse of a rubber helped us fill a gap in civil and analysis, dynamic response, rotor dynam- mount or the performance of an engine structural engineering.” ics, aeroelasticity and optimization. The gasket seal. Integrated explicit dynamic Roberto Nascimbene, PhD advantage to having all of these solutions capabilities let engineers perform metal Researcher available in a single solver is that input/ forming analysis or evaluate electronic Structural Analysis Sector output file formats are the same for all hardware performance during a high Coordinator solution types, greatly simplifying model- impact drop test simulation. Eucentre ing processes. Rotor dynamic analysis Linear analysis Rotating systems, such as shafts and tur- “Based on our finite element Linear analysis assumes that materials bines, are subject to rotation-induced analysis (technology), we are not strained beyond their yield limits gyroscopic and centrifugal forces that were able to reduce stress and that deformations remain small in give rise to dynamic behavior not present by a third.” relation to overall dimensions. NX in stationary systems. In particular, Martin Albrecht Nastran features a complete range of lin- dynamic instability can occur at certain CEO ear analysis functionality. For example, it rotation speeds known as critical speeds. MT-Propeller can solve static problems, such as deter- Rotor dynamic analysis allows engineers mining if a structure will fail under a pre- to predict critical speeds for their systems scribed load. NX Nastran also solves tran- and develop designs that operate away sient problems where loads change over from these unstable speeds. time, like a car driving down a road. In addition, engineers use NX Nastran to solve for buckling load capacities and heat transfer behavior. Advanced nonlinear analysis When deformations are large, linear material assumptions are invalid, or con- tact is a factor, then nonlinear analysis is the appropriate simulation choice. Nonlinear implicit and explicit analysis solvers enable engineers to address prob- lems as simple as a plastic catch and as Detail of the contact surfaces of a complex as a car body roof crush and pendulum isolator post-buckling analysis. 4 Dynamic analysis Optimization “We have set ourselves up Dynamic analysis is an important known Designing and producing innovative with an advanced solution strength of NX Nastran. From transient, products that meet performance criteria that lets us perform a complete to frequency, to random loading, to is a goal of every manufacturer. Using range of structural and shock response, NX Nastran covers the optimization techniques, engineers can thermal analyses.” full range of dynamic solutions. Dynamic improve a proposed design, resulting in Nicolas Étienne response capabilities play a key role in the best possible product for minimum Mechanical Group Leader various applications, such as assessing cost. Because your designs may have ABB Analytical Business Unit passenger comfort in aircraft and auto- hundreds of variable parameters with mobiles under different operating complex interrelationships, finding an conditions, or evaluating the effect optimal design through manual iterations of vibrations on the performance of is hit-or-miss at best. NX Nastran’s consumer products and other high-tech optimization capabilities streamline electronic devices. and automate that process by using sophisticated algorithms to search the Dynamics analysis results are often entire design space and find the right used as input into other types of analy- combination of parameters that will ses, such as motion analysis for flexible yield optimal performance. bodies. NX Nastran facilitates links to motion simulation tools, such as NX Motion, RecurDyn, Adams, SIMPACK and MATLAB to simplify simulation workflows. Aeroelastic analysis Aeroelastic analysis enables analysis of structural models in the presence of an airstream. With NX Nastran, engineers can simulate static aeroelastic trim analy- sis, flutter and dynamic aeroelasticity response applied to a variety of unsteady loadings including gust. As such, it is applicable in the design of airplanes, heli- copters, missiles, suspension bridges and Flexible bodies within a motion even tall chimneys and power lines. analysis 5 Computational performance and numerical accuracy “To see such a good correlation Finite element analysis models have Distributed memory parallel on a very complex system consistently grown in size as engineers processing (DMP) model was impressive.” continue to tackle more complex prob- Large system-level static and dynamic George Laird lems through the increase in computing analyses, often seen in the automotive