Greater fuel efficiency and low emission requirements have grown into such an urgent imperative in aircraft design that it often overshadows an equally significant factor in air travel—noise. Airbus shows that it’s possible to infuse acoustic simulation into design processes from beginning to end, giving engineers the acoustic simulation intelligence they need to create quieter aircraft, according to Free Field Technologies.
The continued use of composite materials in aerospace has revealed other challenges that need to be addressed while the solutions to material and manufacturing cost are reduced. Before the widespread use of the material in transportation vehicles can be realized, safety challenges surrounding the material must be addressed.
Using gasoline in modified truck diesel engines can result in more than 50% efficiency if the combustion process is done correctly, according to research conducted at Lund University in Sweden. By employing a partially premixed combustion (PPC) process, fuel consumption for gasoline engines could be cut in half, the researchers claim.
London Mayor Sadiq Khan unveiled the world’s first double-decker hydrogen bus at the end of November as part of a commitment to phase out purchase of new pure diesel buses in the capital's fleet beginning in 2018.
Known for its compact diesel engines below 100 hp (75 kW), Kubota unveils its first diesel engine above that threshold, the 5-L V5009 with an output of 210 hp (157 kW). The new 4-cylinder engine will be Tier 4 Final and EU Stage V ready when mass production begins in 2020.
To address the disadvantages mainly in the traditional manufacture of diaphragm accumulators, Freudenberg Sealing Technologies developed a new approach—one that the company says requires fewer process steps, fewer components and shorter installation times.
The costs of building and running prototype engines are high, but they’re extremely daunting when each cylinder of a marine engine provides more than 1000 kW (1340 hp). That’s prompted Wärtsilä to invest heavily in hardware and software so modeling, simulation and virtual testing can be used to shorten development time and ensure that all design requirements are met.
EDEM for ANSYS simulation tool from EDEM enables engineers to add realistic bulk material loads as standard in ANSYS structural analysis without the need for Discrete Element Method (DEM) knowledge or expertise in bulk material simulation.
The ILPS-45 series inductive, contactless linear position sensors from The Sensor Connection use linear variable inductance transducer (LVIT) technology and are specifically designed for measuring applications requiring rugged devices.