Looking for experiences here...
I'm fairly familiar with the new simulation paradigm being pushed:
- Set up simulations locally on low-end device
- Submit to high-end (massively parallel) devices in "the cloud"
- Get results back
Licensing all happens in your cloud account, not on the local...
If you are using an old version of Simulink, why? I'm wondering what constraints exist in the engineering workplace that might cause users to want to stick with older versions. For example: "My tool-chain has elements that require nothing newer than R2015b", or "My HiL tool needs exactly 32-bit...
If you are using an old version of Matlab, why? I'm wondering what constraints exist in the engineering workplace that might cause users to want to stick with older versions. For example: "My tool-chain has elements that require nothing newer than R2015b", or "My HiL tool needs exactly 32-bit...
So we are all happy with the terms Gxx, Gyy, Gxy in our signal processing world. But does anyone know where the letter G came from? I was trying to explain these things to a colleague today, but all I could point to were definitions of Gxx,Gxy,Gyy. Not why we use the letter G
Steve
My engine simulations (different flow solvers, same geometry) are both showing a transient dip in the manifold air temperature after a sudden reduction in throttle angle. No fuel involved, just gas dynamics. My engine runs at a fixed speed (1000 rev/min) on near full throttle. I then snap the...
I've not found any matches for FMU/FMI on this site and was wondering if FMU use is actually common now in system simulations. Papers are published, but is real (simulation) work being done using them?
Just looking for usage stories really.
For those who have no idea what I'm asking, this...
I see "PPM" used as a (dimensionless) unit of gas species concentration quite a lot. I kind of assume it's normally an implied mole (volume) fraction, but don't really know why. Or if others do too. Indeed I can't remember ever seeing it clarified in print, just "PPM".
Any/all anecdotal...
EPA, California Notify Volkswagen of Clean Air Act Violations
I can totally understand why OEMs might want to cheat their sporty cars through noise legs, but I fail to see the point of having a "defeat device" to cheat the emissions test. If the emissions devices have an adverse effect on fuel...
It's now starting to occur to the British press that meeting NOx emisions targets through SCR (& Adblue) is a policing nightmare:
https://www.google.co.uk/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=adblue+news&tbm=nws and I found this with a minimal WWW search...
According to this: https://www.hondarandd.jp/point.php?pid=1033&lang=en
...P&E engineers have allowed fundamental changes to breathing and combustion to reduce steering column vibration. I haven't read the actual article, but it sounds a little far-fetched. Interested to hear similar...
Is this spam really aimed at engineering professionals?
High voltage must be good, eh? Better than old-fashioned low voltage.
90% efficiency is up there with any good transmission, I suppose. Wonder what the prime mover is.
1 kW/h sounds like a strange boast. Quite hard to disprove though...
http://www.globalnewenergynetwork.org/news.php?news_id=2190696
Can anyone shine more light on this?
It looks quite simple the way it's described: excess power created by the turbine is used to pump out the vessel against (big) hydrostatic pressure. Power is returned by reversing the process...
Just wondering...
My turbo gets a good minute or so of idle running after any trip, just because of parking and other natural driving conditions. What about the new breed of stop/start engines. Do they have controls to look after their turbochargers? My commute comprises several places where a...
A colleague of mine is looking to send himself on an acoustics course (engines/automotive). Here in Europe, we have quite a few choices, but I'm not familiar with what's on offer in the USA. I guess LMS have a presence. Any other suggestions?
- Steve
Completed mine yesterday. Almost as much fun as going to the dentist.
I can't help wondering if it should only be required that the top levels of management take this sort of thing.
- Steve
Way back in the late 80's I remember an attachment that could be fitted to shop air. It was a ring that turned and multiplied the flow rate many times, giving the ability to suck or blow, depending on which side was presented to the work. There was a trade name (UK), but I simply can't find it...
