Order quality.

What use is the best spectrum if it cannot be interpreted correctly? Structure-borne sound can detect changes in mechanical components - but the spectrum only shows changes in the orders, not the components themselves. During testing, the components wear out and the acoustic behavior changes accordingly. The spectrum provides clues, but what exactly do these changes mean? To find out which component is affected, all components would have to be fully calculated - a time-consuming process. NVH experts determine the specific frequencies of individual components. However, this approach is not very practical in dynamic tests, as frequencies shift with every speed. We have developed the Reilhofer Order Calculator (ROC) so that you do not have to rely on in-depth NVH expertise. The ROC displays the complex test specimens simply, calculates the generated orders precisely and shows a more comprehensible display in the spectrum that is component-related. For fast and clear fault diagnosis.

Functions and advantages of the Reilhofer Order Calculator (ROC)

- Order calculation of all rotating components
Precise analysis of all rotating components in the powertrain.

- Structured grouping according to assemblies
Clear presentation of the calculated components according to functional units.

- Calculation from basic to 50th harmonic order
Detailed order analysis for in-depth NVH evaluations.

- Support for a wide range of bearing types
Can be used flexibly for different bearing concepts.

- Integration of auxiliary units
Complete modeling of even complex drive systems.

- Fast calculation of engine and gearbox types including derivatives
Efficient analysis of different variants and platforms.

- Complete powertrain calculation
Holistic consideration of all relevant components in one model.

- Seamless integration in delta-ANALYSER and eol-ANALYSER
Direct further use of the ROC data in the evaluation.

- Fast component identification
Targeted analysis through clear assignment of orders to components.

- Intuitive operation thanks to clearly structured user interface
Efficient work thanks to logically structured control elements.

All rotating components such as gears and shafts, cyclical processes such as combustion processes and continuously emitting sources such as frequency converters generate structure-borne noise, which can be clearly represented in the spectrum.

In order to determine the cause precisely, it is essential to analyze the relevant components in terms of order. Resonances cannot always be clearly identified, as they usually occur through a bundle of neighboring spectral lines - not just through a single order. The calculated component orders are displayed group-specifically in a table and range up to 50 times the basic order. For a quick overview, the orders can be sorted in ascending order or filtered by component group - for efficient and targeted analysis.

Without the ROC, the user quickly reaches the limits of conventional analysis methods when dealing with complex issues. Support from NVH specialists is often necessary - but in view of today's product diversity, they cannot always provide all the relevant details at short notice. This is precisely where the Reilhofer Order Calculator developed by us comes in: Seamlessly integrated into our evaluation software, it enables every user to become an expert themselves - even for the most demanding applications.

With a large number of preconfigured and standardized modules and an intuitive user interface, even complex powertrains can be modelled quickly and efficiently. The most important orders are calculated automatically - for a precise, time-saving and reliable analysis.

Errors during modeling are virtually impossible: Before each calculation, the system automatically checks the plausibility of the model. For example, it detects faulty force flows, blockages or impermissible synchronization and reports these at an early stage. Only technically flawless models form the basis for the subsequent analysis. In addition, color coding in the design view ensures that potential errors are detected quickly and intuitively - for maximum safety and efficiency.

Thanks to the seamless integration into our evaluation software, changes that lead to a shutdown or N.O.O. assessment can be assigned directly to the affected components and thus to the cause of the damage. In combination with the eol-ANALYSER and the delta-ANALYSER, the ROC data is available for a comprehensive and in-depth analysis - for precise fault diagnosis and targeted measures.

The results of the ROC calculation can be conveniently exported to an Excel file. This allows the data to be processed flexibly, even on systems on which the ROC itself is not installed - for even more flexibility and efficiency in the analysis.

The ROC covers the entire range of transmissions - from classic manual transmissions to automatic and dual-clutch transmissions. In terms of engine configurations, all common designs with 1 to 16 cylinders are supported. The ROC is also future-proof: e-drive systems with multiple electric motors can also be fully mapped. Bearings of different types can be integrated into all designs, so that a complete order calculation of the entire powertrain is possible - for a comprehensive and precise analysis.