Search found 1788 matches
- Mon Oct 19, 2020 9:38 am
- Forum: General Topics
- Topic: A Needle(slap) in a Haystack...aka Stuck Speedometer Reliability
- Replies: 5
- Views: 9943
Re: A Needle(slap) in a Haystack...aka Stuck Speedometer Reliability
Oct 2020A: Postings on INCR included the following references: I preface this list with the conclusion from a reference above... In general, the practice of representing a residual speedometer reading as that vehicle’s speed at impact is strongly cautioned against. Speedometers and Collision Reconst...
- Fri Oct 16, 2020 1:29 pm
- Forum: Vehicle Safety
- Topic: Automatic Braking Seeing "Phantom" Objects
- Replies: 0
- Views: 4569
Automatic Braking Seeing "Phantom" Objects
Couple of articles on Automatic Braking and issues with "Phantom" braking, etc. When investigating a crash any influence or actions by any automatic steering or braking (if it is an option on either vehicle involved in the crash) must be investigated. Wired Magazine: Split-Second ‘Phantom’...
- Mon Oct 12, 2020 11:35 am
- Forum: 3D Vehicle Simulation, msmac3D
- Topic: What happens when a vehicle hits a pothole or rut at high speed?
- Replies: 3
- Views: 14558
Re: What happens when a vehicle hits a pothole or rut at high speed?
A query about potholes came up and so i did an initial review of the pothole paper (SAE 2015-01-1572) and unfortunately it does not include any full-scale tests (see Summary/Conclusion 5) and an important missing element is what shape/size might cause de-beading/air-out? The study does include an im...
- Wed Sep 30, 2020 2:20 pm
- Forum: General Topics
- Topic: 18% Restitution at 35 MPH??
- Replies: 4
- Views: 5203
18% Restitution at 35 MPH??
Sept 30 2022: this topic split off from related topic What is Restitution? (w/r to Vehicle Collisions) Sept 2020: As part of the NAPARS facebook page presentation Today: An NCAP Report, Part5, Restitution they included NHTSA Crash test #10156 which was a 2018 Chevrolet Traverse 4D SUV 35 MPH barrier...
- Wed Sep 30, 2020 1:34 pm
- Forum: General Topics
- Topic: What is Restitution? (w/r to Vehicle Collisions)
- Replies: 3
- Views: 14269
Re: What is Restitution? (w/r to Vehicle Collisions)
Please also see
- Wed Sep 30, 2020 1:28 pm
- Forum: Simplified Momentum Analysis, PC-Crash, Virtual Crash
- Topic: A Negative Coefficient of Restitution? An Irresponsible vCrash Video!
- Replies: 0
- Views: 7499
A Negative Coefficient of Restitution? An Irresponsible vCrash Video!
In a recent post on the NAPARS facebook page which was presenting what type of information is contained in NHTSA Crash test database reports they presented results from test #10156 which was a 2018 Chevrolet Traverse 4D SUV 35 MPH barrier crash. As part of the section on restitution (they have daily...
- Sat Sep 26, 2020 1:07 pm
- Forum: General Topics
- Topic: What is Restitution? (w/r to Vehicle Collisions)
- Replies: 3
- Views: 14269
Re: What is Restitution? (w/r to Vehicle Collisions)
This topic came up on the NAPARS facebook page so i added a couple other sources for the definition: Oxford Reference The coefficient of restitution always satisfies 0<=e<=1. When e=0, the balls remain in contact after the collision. When e=1, the collision is elastic: there is no loss of kinetic en...
- Thu Sep 24, 2020 9:45 am
- Forum: 3D Vehicle Simulation, msmac3D
- Topic: Pavement Shoulder Dropoff
- Replies: 3
- Views: 8513
Re: Pavement Shoulder Dropoff
Sept 2020 a couple references/links added
- Tue Sep 22, 2020 4:41 pm
- Forum: McHenry News!
- Topic: McHenry Software - Still Innovating After All These Years!
- Replies: 2
- Views: 6078
McHenry Software - Still Innovating After All These Years!
Recently a thread on INCR included some comments related to McHenry Software and small software companies in general. Below was our response: Thanks for the comment in the INCR REC-TEC topic (note INCR you have to be a member for that link to work) of 'McHenry is a name etched in the history of cras...
- Tue Sep 22, 2020 4:15 pm
- Forum: Simplified Momentum Analysis, PC-Crash, Virtual Crash
- Topic: Some Simplified Momentum Assumption Misconceptions
- Replies: 6
- Views: 22667