Search found 1789 matches

by MSI
Tue Sep 22, 2020 4:15 pm
Forum: Simplified Momentum Analysis, PC-Crash, Virtual Crash
Topic: Some Simplified Momentum Assumption Misconceptions
Replies: 6
Views: 22697

Re: Some Simplified Momentum Misconceptions

Sept 2020:Added to the first part of the thread a NOTE...see the first thread above for the NOTE
by MSI
Fri Sep 18, 2020 10:15 am
Forum: Vehicle Safety
Topic: Uber Driver Charged in Crash into Pedestrian on bike in 2018
Replies: 5
Views: 7224

Re: Uber Driver Charged in Crash into Pedestrian on bike in 2018

Q: Two comments received: I’d certainly be interested in mapping the illumination levels at that intersection. I am not so sure that PRT would have been significantly different, but video is notoriously insufficient in capturing illumination properly too. That video is from an after market dashcam t...
by MSI
Thu Sep 17, 2020 10:35 am
Forum: Occupant/Pedestrian Simulation
Topic: PC-CRASH Multi-body option IS the ATB program!
Replies: 0
Views: 5525

PC-CRASH Multi-body option IS the ATB program!

I don't know why PC-CRASH pretend their 3D "multi-body" model is something independently created when in reality it is the ATB program. Quick comparison of the ATB program vs pc-crash Multi-body simulation first note that ATB is: ATB general purpose lumped mass program.png And here is a co...
by MSI
Wed Sep 16, 2020 7:14 pm
Forum: Vehicle Safety
Topic: Uber Driver Charged in Crash into Pedestrian on bike in 2018
Replies: 5
Views: 7224

Re: Uber Driver Charged in Crash into Pedestrian on bike in 2018

From another article i see the Uber driver was charged with negligent homicide Vehicular homicide is a crime that involves the death of a person other than the driver as a result of either criminally negligent or murderous operation of a motor vehicle. In cases of criminal negligence, the defendant ...
by MSI
Wed Sep 16, 2020 4:48 pm
Forum: Occupant/Pedestrian Simulation
Topic: Occupants DeltaV v Vehicle DeltaV?
Replies: 0
Views: 5161

Occupants DeltaV v Vehicle DeltaV?

Q: Do the occupants of a car experience delta v based maximum engagement during the crash or based post impact speed of the vehicle (roll out). This example is a rear end crash. A: first point is the car/vehicle experiences a DeltaV/Impact speed change then the occupant experience a impact speed ch...
by MSI
Wed Sep 16, 2020 4:39 pm
Forum: Simplified Momentum Analysis, PC-Crash, Virtual Crash
Topic: Low Speed Case with information only on one vehicle
Replies: 0
Views: 4706

Low Speed Case with information only on one vehicle

Q: I’m looking at a low speed case in which there is only information on the target vehicle (photos & repair estimate). As far as the bullet vehicle, there are only a couple of bad photographs available and the extent of the damage is difficult to determine. The other expert in the case used the...
by MSI
Wed Sep 16, 2020 11:29 am
Forum: Vehicle Safety
Topic: Uber Driver Charged in Crash into Pedestrian on bike in 2018
Replies: 5
Views: 7224

Uber Driver Charged in Crash into Pedestrian on bike in 2018

Nov 23 2020: i have recently combined two items which probably are the reason for the police charging the driver in the crash: The camera in the uber vehicle was low grade and so the video in no way represents the lighting condition at the time of the crash The area of the crash was extremely well ...
by MSI
Thu Sep 10, 2020 2:53 pm
Forum: msmac3D Licensee Notes
Topic: msmac3D ver 2.80.2 available Now!
Replies: 1
Views: 1463

msmac3D ver 2.80.2 available Now!

McHenry Graphics msmac3D/2D Ver 2.80.2 available now (note using same link and minor updates added) All McHenry Software Licensees will shortly receive notice, if you did not PLEASE LET US KNOW ! If not a Licensee, are you interested in our msmac3D software? Contact us for SPECIAL PRICING! Summary ...
by MSI
Thu Sep 03, 2020 10:51 am
Forum: Collision Simulation, SMAC
Topic: Why don't you use the A & B Coefficients in mSMAC?
Replies: 1
Views: 6195

Re: Why don't you use the A & B Coefficients in mSMAC?

reviewing this recently realized we hadn't included an important related post
by MSI
Wed Sep 02, 2020 4:22 pm
Forum: McHenry News!
Topic: Recent Letter Received About A SAE Papers by RRM
Replies: 0
Views: 5219

Recent Letter Received About A SAE Papers by RRM

Q: Received a very nice letter from a person in the reconstruction business in which he included a copy of Raymond R. McHenry's (RRM) 1975 SAE paper " A Comparison of Results Obtained with Different Analytical Techniques For Reconstruction of Highway Accident". In the letter they also rela...