How can NVH simulation reduce vehicle weight and cost?

1 What is NVH simulation?

NVH simulation is a process that uses computer models and software to analyze and predict the noise, vibration, and harshness levels of a vehicle or its components. NVH simulation can cover different aspects of the vehicle, such as the engine, the transmission, the chassis, the body, the interior, and the tires. NVH simulation can also take into account the external factors, such as the road surface, the wind, and the traffic. By using NVH simulation, engineers can evaluate and compare different design options, identify and solve potential problems, and optimize their NVH performance.

2 How does NVH simulation work?

NVH simulation works by applying mathematical and physical principles to create realistic and accurate models of the vehicle and its environment. Depending on the type and complexity of the problem, different methods and techniques can be employed. For example, finite element analysis (FEA) divides the vehicle or its parts into small elements to calculate stress, strain, deformation, and vibration under different loads and conditions. Boundary element analysis (BEA) focuses on the surface of the vehicle or its parts to calculate acoustic pressure and sound radiation under different frequencies and sources. Multi-body dynamics (MBD) models the vehicle or its parts as rigid or flexible bodies connected by joints and springs to calculate motion, force, and torque under different inputs and outputs.

4 What are the benefits of NVH simulation?

NVH simulation can provide a multitude of advantages for automotive engineers and manufacturers, such as a faster and cheaper product development cycle, leading to improved competitiveness and innovation. Additionally, higher and more consistent product quality can result in greater reliability and durability. Moreover, lower and more predictable product risk can lead to fewer warranty claims and recalls. Finally, better and more customized product performance can satisfy the expectations and preferences of various customers and markets.

5 What are the challenges of NVH simulation?

NVH simulation is not a perfect solution and it faces some challenges and limitations. These can include the complexity and uncertainty of the NVH problem, which may require a lot of data, expertise, and computation power to model and solve. The validity and accuracy of the NVH model can also be affected by assumptions, simplifications, and validations. Additionally, compatibility and interoperability of the NVH software is dependent on the vendor, platform, and format of the software. And finally, communication and collaboration of the NVH team may involve different disciplines, departments, and stakeholders of the vehicle.

6 Here’s what else to consider

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