Search found 1331 matches

by MSI
Wed Jul 14, 2021 2:28 pm
Forum: General Reconstruction Analysis
Topic: What is the preferred Pole/Tree Collision analysis method?
Replies: 5
Views: 7639

Re: What is the preferred Pole/Tree Collision analysis method?

Transferring some older VHS tapes to digital so note some parts are not clear Uploaded a collection of 7 full scale side impact tests https://youtu.be/cFsvnHyFIC8 summarized by chart below: Summary of 7 NHTSA test.png You can access the test data at the NHTSA Crash test database, here's a link to AL...
by MSI
Mon Jul 12, 2021 10:32 pm
Forum: General Reconstruction Analysis
Topic: Princess Diana Crash Reconstruction
Replies: 9
Views: 7775

Re: Princess Diana Crash Reconstruction

Added to initial thread some subject specific links to the 48 Hours video For task specific portions of the video see the following links: | Time on Video | Link to place in Video on Topic | | :---------------: | :---------------- | | @0:30 | Dan Rather Introduction | | @0:76 | Start of Brian McHenr...
by MSI
Mon Jul 12, 2021 8:37 pm
Forum: General Reconstruction Analysis
Topic: Recommendations for software and hardware for crash reconstruction
Replies: 0
Views: 24

Recommendations for software and hardware for crash reconstruction

Q: On a Facebook forum someone posted that their department is currently creating an crash investigation/ recon unit and they were asked to get a list of equipment needs/ necessity's together. Wondered what devices are out there that are being used for surveying etc? Also what programs are used to ...
by MSI
Mon Jul 12, 2021 3:58 pm
Forum: General Reconstruction Analysis
Topic: End-Over-End Rollover Analytical Relationships
Replies: 0
Views: 27

End-Over-End Rollover Analytical Relationships

We've made a copy of this topic from the topic Rollover Analysis: minimum speeds and roll velocity approximation The following is a page out of our book McHenry Crash Reconstruction 2008 which includes some equations to consider in calculating a minimum speed to produce an end-over-end vault. We wil...
by MSI
Mon Jul 12, 2021 2:24 pm
Forum: msmac3D/3D Vehicle Simulation
Topic: Rollover Analysis: minimum speeds and roll velocity approximation
Replies: 4
Views: 591

Re: Rollover Analysis: minimum speeds and roll velocity approximation

Question on another forum about full scale tests for end-over-end rollovers Can't recall any specific crash test which included an end-over-end vault but recall have seen some (might come to me later) In the meantime the following is a page out of our book McHenry Crash Reconstruction 2008 which inc...
by MSI
Thu Jul 01, 2021 2:21 pm
Forum: Specs/Acceleration/Braking
Topic: What are typical values for Free Rolling Drag coefficient?
Replies: 4
Views: 4292

Re: What are typical values for Free Rolling Drag coefficient?

Saw another article referenced on the INCR news forum . Join NAPARS and have access to all the ARJ issues. July/Aug 2016 ARJ page 31, PASSENGER CAR COASTDOWN RATES , By Wade Bartlett, Bill Wright, and Andy Rich Has some full scale tests, presentations of other test data and the following abstract &a...
by MSI
Thu Jun 24, 2021 12:00 pm
Forum: msmac3D Licensee Notes
Topic: Is there a Crush BEV/Crash3 calc option in msmac3D?
Replies: 0
Views: 57

Is there a Crush BEV/Crash3 calc option in msmac3D?

Q: Is there a Crush BEV/Crash3 option in the software? A: Yes. In the update Preliminary v3.3 uploaded for licensees only so use your login/password, which includes updates to the crash test database, how to videos, etc Also be sure to see the recent topic: HOWTO Calculate CRASH3 A & B Coefficie...
by MSI
Mon Jun 21, 2021 11:02 am
Forum: Specs/Acceleration/Braking
Topic: Golf Cart Braking and Handling Tests
Replies: 1
Views: 49

Re: Golf Cart Braking and Handling Tests

great followup on Facebook NAPARS page on golf carts: See NAPARS page Working with cars and trucks, many of us forget how small a golfcart is. It seems almost as large as a small car, but it's mostly air and happy thoughts, instead of engine blocks and steel drivelines. The article Inspection and Te...
by MSI
Wed Jun 16, 2021 10:13 am
Forum: Specs/Acceleration/Braking
Topic: Golf Cart Braking and Handling Tests
Replies: 1
Views: 49

Golf Cart Braking and Handling Tests

On Facebook group a link to a reference with Golf Cart Tests was provided. It's an NHTSA report Inspection and Testing of Low Speed Vehicles , Jeff Elias, Aug 1998, VRTC-83-0461 Abstract: In response to petitions by the golf cart industry the National Highway Traffic Safety Administration reviewed i...
by MSI
Tue Jun 15, 2021 9:03 am
Forum: Vehicle Safety
Topic: Road Collision Reporting Guidelines
Replies: 0
Views: 27

Road Collision Reporting Guidelines

From the UK Guidelines for journalists reporting on road collisions. Correct use of appropriate language makes for balanced, inoffensive stories. Road Collision Reporting Guidelines The Road Collision Reporting Guidelines are produced in collaboration with the University of Westminster’s Active Trav...