Astronomical telescopes enable astronomers to see into deep space and unravel the mysteries of the universe. Freeform mirrors surfaces offer substantial benefits by providing additional degrees of freedom that make it possible to improve the optical performances of the instrument. Freeform optical mirrors surfaces must be construct with nano-scale accuracy to produce clear images. Currently, …
All physical processes are to some degree nonlinear – every day, the materials that surround us all exhibit either large deformations or inelastic material behavior. For example, pressing an expanded balloon to create a dimple (the stiffness progressively increases, that is the rate of deflection decreases the more squeezing force is applied), or flexing a …
The LEGO Company has built its brand on delivering quality products and experiences that boost creativity in children around the world. Every hour, more than 1.4 million LEGO parts are produced, making up the 100 million LEGO sets produced annually. For LEGO, each part and change – even small changes in material usage – has …
The reactor pressure vessels make up the heart of a nuclear power plant, containing the core, core shroud and coolant. These nuclear plants were built and started operating 20 to 30 years ago. The company operating this plants needed to know how this welds can be expected to perform after a long period of service. …
A universal problem when optimizing noise and vibration is that it often conflicts with durability or cost. Multi-body dynamics helps balance these competing requirements early in the design process by addressing key vibration issues facing engineers, such as “will excitations in one part of the systems interaction with another part of the system?” MBD makes …
When discussing the benefits of simulation, time and money savings are usually the biggest headlines, as they should be. But these also promote better design. To avoid multiple iterations and meet design specifications, engineers tend to design conservatively, as was the case at TürkTraktör (Turkey’s largest producer of tractors). The problem with this approach is …