Heavy Machinery Analysis – NVH, Ergonomics & Compliance

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When machines weighing tons cause vibrations under changing configurations and high mechanical loads, it's not just a matter of comfort—it's about safety, durability, and cost-effectiveness.

Initial situation & relevance

Manufacturers of heavy machinery today are faced with the task of developing powerful yet comfortable machines that comply with legal requirements both on the road and on construction sites. For the operator, spending every day in the cab is an ergonomic and acoustic stress test – comfort becomes a competitive advantage.

At the same time, the wide range of accessories and configuration options requires a robust, scalable, and consistent measurement system to accurately evaluate operational stability, acoustics, and vibration behavior across all variants.

[Translate to Englisch:] Ganzheitliche Analyse für Schwermaschinen mit PAK

Challenge

The central challenge: All relevant measured variables – including movements, airborne sound levels, sound power, pressure, and temperature – must not only be recorded, but also analyzed and documented in relation to each other. Many measurement systems fail to integrate this diversity of data or are too inflexible and complex in practice.

Solution

For precise, mobile acoustic measurements under real operating conditions, the PAK
measurement system is used in combination with the PAK software, Mecalc hardware, and the PAK Cloud. This creates a seamlessly integrated system that enables fast, flexible, and high-quality acoustic evaluations – regardless of location and scalable.

Procedure

Preparation & setup: Selection and use of suitable sensors. Reusable measurement setups allow for quick setup, even with changing machine variants.
Data acquisition & analysis: Real-time recording of airborne sound, structural vibrations, pressure, and temperature—synchronized and visualized.
Scalability: Easy handling of large amounts of data and constantly increasing analysis requirements.
Specialized evaluation: Digital order analysis, operational vibration-based visualization, and standard-compliant report generation at the click of a mouse.
Documentation & comparability: Cloud integration enables long-term and real-time comparisons between machines and locations

Results

Greater precision in the evaluation of acoustic and mechanical properties
Shorter test cycles through automated workflows
Early detection of critical NVH phenomena such as resonances, rattling, or pressure peaks
Standardized reporting for internal and external stakeholders

Customer

✅ Time and cost savings through more efficient test procedures

✅ Fewer errors thanks to automated analysis steps

✅ Improved product quality through well-founded NVH evaluations

✅ Greater ease of use – quieter, lower vibration, longer service life

⭐️ Key Features

Intuitive workflows: Quick to learn, efficient to use
Scalable data processing: Even with high channel counts and large machine fleets
Deep NVH insights: From simple level measurements to complex order analysis
Seamless integration: into existing measurement technology, FE tools, and data platforms
Cloud-based comparisons: Measurement data from past series available at any time

✅ Conclusion

The demands on NVH engineers in heavy machinery development are high – PAK provides a practical answer. With its holistic approach, technical depth, and high user-friendliness, it not only offers more precise measurement results but also real competitive advantages: quieter machines, more satisfied operators, and lower development costs.

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