Thanks Kyle!!
I appreciate a lot your effort. I work as NVH engineer for diesel powertrain in Spain. If I can help you at any time please ask!!!
I also saw your webpage, very intersting!.
Best regards,
Francisco.
Kchan: Thank you very much for the info, that's a smart explanation!!
According to your comments, you disappoint with this kind of attachments basically due to the rubber deterioration after heating cycles.
It is very interesting for me the solution that you propose instead rubber sleeve. I...
Of course by means modifying pilot injection timing, dPrail/dt, and other factors we improve knocking noise. Indeed, this is the most efficient way. (Although today fuel cons & emissions limitations make it hard to play).
But for instance: dont you prefer the disel sound of VWGolf than others...
Hi GregLocock,
Just remark that our objective is to 'smooth' diesel knocking noise. Probably SQ is more related to sportiveness, powerfulness, etc...
But that we are looking for is some index that judges the 'awful' diesel noise, not only the SPL.
We are quite interested in Loudness, 1/f freq...
Hi Experts,
Now we are dealing with this issue: High frequency noise from the vehicle exhaust rear hanger due to the engine movement.
The root caise is the friction between rubber of the hanger and the steel of the rod. A stick & slip phenomenon happens providing the noise.
We are now testing a...
Hi Experts,
In an automotive technical center, diesel engine NVH section we are, just now starting SQ activities in order to add it to our development target sheets. Now only absolute interior noise are required, but we know that it might not be enough.
Firstable, we are trying to choose...
