New simulation, testing software from LMS

Diesel Progress North American Edition, August, 2004

In the field of structural testing, LMS Test.Lab Rev 5 supports the LMS PolyMAX model analysis method for operational model analysis. This model parameter estimator speeds up and simplifies the model analysis curve-fitting task, especially for highly damped structures or complex assemblies, the company said.

LMS Test.Lab Rev 5 also offers a new sound diagnosis module designed to provide complete capabilities for sound quality analysis and diagnosis and simplify the subjective evaluation and diagnosis of sound. While listening to the measured sound, users can interactivity apply different filters and easily assess the disturbing elements in the sound. A quantitative assessment, with the calculation of online or off-line psycho-acoustic metrics completes the evaluation.

In addition, LMS Test.Lab Rev 5 delivers a new real-time measurement and processing solution for torsional vibration analysis. An in depth understanding of torsional vibrations has become increasingly important in the noise and sound quality optimization of transmission systems, clutches and differentials. Unlike traditional methods that typically use counters for this, LMS Test.Lab is fully based on digital signal processing and uses the new dedicated LMS SCADAS III QTV input module. With this capability, the analysis of the effect of rotational speed variation on the global noise or vibration behavior becomes more accurate and easier.

LMS Test.lab 1Key 5 completes its vibration control offering by introducing the random-on-random workbook, offering narrowband and multisine test capabilities, as well as enhanced online monitoring features. The LMS environmental test solution is deployable as one large test configuration with a high channel count, or as multiple smaller setups operating simultaneously, the company said.

All LMS software is available in the U.S. through LMS North America, Troy, Mich.