NVH AND NEW PRODUCT DESIGN

NEW PRODUCTS

• Are used/compared by many people with critical minds in different settings.
• May have conflicting attributes.
• Are delevoped by computer modelling.
• Are not competitive if fail to work.
• Are not optimum only by trial and error.
• Should exceed expectations (wow factor).
• Generate experinces people love for life.

NVH, PART OF PRODUCT DNA

• decribed as unseen features but felt quickly by people, eg. even when they are not driving a car!
• used to differentiate brands.
• Convey different messages; powerfull sound vs. refined.

TRANSFER PATH ANALYSIS
Source, Path, reciver.

Load definition:

• should define the environment a product has to function.
• May change during product lifetime.

BEST MOUNTING STRATEGY?

• Engine, differentials, steering, suspension, subframes, exhaust, fuel tank, batteries, electerical motors, brake calipers, etc.

ISOLATION EFFICENCY:

• A function of local stiffness and connection stiffness.
• Static vs. Dynamic

TOpology optimisations

• can help to identify design failures modes of product.
• used to reduce weight.

Sensitivity Study

• A product maybe improved by many ways but the most effective one could be identified using this approach.

different tasks; day to day