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Mercedes-Benz unveils its revamped G-Class

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The all-new G-Class makes its public debut at the Detroit auto show in G550 form. Completely redeveloped and fitted with a 4.0-liter V8 biturbo gasoline engine offering 427ps and 450 lb-ft of torque at 2,000rpm to 4,750rpm, despite near-identical looks to its predecessor plenty has changed for the Mercedes-Benz SUV.


Ford’s F150 pickup gets its first diesel motor

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Developed by the powertrain team behind the 6.7-liter Power Stroke engine for super duty trucks, the all-new 3.0-liter V6 Power Stroke unit promises 250ps, 440 lb-ft of torque, and an anticipated 5175kg of towing capacity.


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In light of Fisker's solid-state battery breakthrough and claims of a one minute charge time, will this electric vehicle technology development kick-start mass BEV uptake? 

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LMS launches upgraded software package

LMS International has released Rev 12 of LMS Test.Lab, its integrated testing solution for NVH engineering. The company says that improvements in the software ensure that fast transfer path analysis (TPA) results, maintain or exceed the accuracy level of classical TPA methods, while providing engineering insight early in the development process.

Bruno Massa, vice president, test operations at LMS International, added, “This makes it possible to identify the components along that path that need to be modified to solve a specific problem. One of our main objectives with LMS Test.Lab Rev 12 was to eliminate possible pitfalls in several advanced TPA techniques in order to ensure reliable results.”



Several types of acquired data can be used in TPA analysis. Strain data is valuable, however very low strain values can potentially impair calculations when solving the TPA matrix, yielding noisy results. With Rev 12, the mixed strain, vibration and acoustics signals are automatically balanced in the equations for guaranteed correct matrix inversion results.



Rev 12 also offers a significant enhancement of LMS OPAX, a TPA method for load identification that substantially reduces the measurement time needed to build the full data model. Rev 12 makes it possible to constrain intermediate results to ensure their validity so that only physically relevant results are retained in every step of the process. Purely mathematical solutions (for example a negative mass) are thus rejected. All results, whether intermediate or final, are valid and can be used reliably, for example as input to simulation models.

 

15 March 2013


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