AUTOMOTIVE DESIGN
AUTO
NOISE WOES A
t a time of profound change, the European automotive industry is facing major challenges.
Not only in the fi ght against climate change, but serious geopolitical changes in the supply chain make a sustainable adaptation in this industry necessary. Whether opting to transition from internal combustion engines (ICE) to a fully electrifi ed powertrain or a software-defi ned vehicle, the automotive industry needs a clear path to master these challenges. This also applies to the development and testing industry, which crucially supports original equipment manufacturers (OEMs). These necessary changes mean
that noise, vibration, and harshness (NVH) will play a more important role as an integral part of the research
16
www.engineerlive.com
and development process in the future, with eff iciency in simulation and testing at the forefront. However, a change in technology, and the way engineers think, is required to overcome the challenges ahead.
CHALLENGE ACCEPTED New developments in the automotive, aerospace and defence sectors are leading to an increase in demand for NVH engineering. This applies not only to established markets but also emerging markets as the demand for individual mobility is growing rapidly. The change and development
in technologies also cause new NVH challenges for engineers. The increasing trend of ICE downsizing and speeding, new hybrid and fully electric powertrains, and overall technological advancements require
Wheeled machine with shaft bridge and track width adjustment
Dr Stefan Maxl outlines the challenges of noise, vibration, and harshness (NVH) present across the automotive industry
improved NVH simulation, testing and service products. This applies to interior and exterior noise reduction as well as structural dynamics and torsional vibration investigations throughout the entire development phase. To succeed in the NVH industry, it
will be necessary to work with highly- educated engineers with a general understanding of diff erent engineering domains. Even if NVH has its roots in the fi eld of machine dynamics, it cannot longer be seen as a pure mechanical task. Modern NVH tasks combine several
disciplines of engineering. Starting with simulations in an early concept phase and post-processing of data sets, NVH engineers must have basic software and analysis skills. When it comes to measurement campaigns,
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52
