ROLL-OVER CAN BE CAUSED BY GOING TO SLOWLY

RESULTS OF AN INVESTIGATION INTO OVERTURNING OF BIG TRUCKS (ESPECIALLY ARTICULATED VEHICLES) GOING THROUGH AN S-BEND MANEUVRE AT LOW SPEED SHOW THAT, WITH HIGH AND HEAVY LOADS, THE NATURAL ROLL FREQUENCY OF THE VEHICLE IS WITHIN THE BAND OF FREQUENCY OF STEERING WHEEL MOVEMENT AT QUITE LOW SPEED, AND THAT IF THE CHANGE OF STEERING FROM ONE DIRECTION TO ANOTHER IS AT A FREQUENCY WHICH COINCIDES WITH THE ROLL FREQUENCY, THE VEHICLE WILL OVERTURN. REMEDIAL MEASURES ARE PROPOSED. /RRL/

• Supplemental Notes:
  • Vol 128, No 3307, PP 40-42, 2 FIG, 4 PHOT
• Authors:
  • DICKSON-SIMPSON, J
• Publication Date: 1969-1

Media Info

• Serial:
  • ommercial Motor

Subject/Index Terms

• TRT Terms: Frequency (Electromagnetism); Loads; Overturning; Rolling; Speed; Steering wheels; Trucks; Vehicle performance
• Old TRIS Terms: Truck performance
• Subject Areas: Highways; Motor Carriers; Safety and Human Factors;

Filing Info

• Accession Number: 00222794
• Record Type: Publication
• Source Agency: Road Research Laboratory /UK
• Files: TRIS
• Created Date: Apr 13 1970 12:00AM