LOAD TRANSFER

LOAD TRANSFER

HAVE YOU EVER THOUGHT WHY COMMERCIAL VEHICLES HAVE DISC BRAKES IN FRONT WHEEL?

NOW LET US FIND OUT THE ANSWER TO THESE QUESTION.

FOR FURTHER DISCUSSION LET US TAKE FEW ASSUMPTION LIKE

1.       VEHICLE IS HAVING LATERAL SYMMETRY

2.       WEIGHT DISTRIBUTION IS 60:40 (FRONT:REAR)

3.       VEHICLE IS MOVING IN A LEVEL ROAD

                                                             

 

 

 LOAD TRANSFER CALCULATIONS  

       ACCELERATION AND BRAKING

WHEN WE ACCELERATE THE LOAD TRANSFER TO THE REAR WHEEL OF THE VEHICLE TAKES PLACE AND IN CASE OF BRAKING LOAD IS TRANSFERRED TO THE FRONT WHEEL. NOW WE WILL CALCULATE THE VALUE OF LOAD TRANSFER IN CASE OF ACCELERATION WITH THE HELP OF HALF VEHICLE MODEL IN SIDE VIEW.

                             

 

 

 

 

 

                             CORNERING OR LATERAL LOAD TRANSFER

WHEN THE VEHICLE CORNERS THEN THE LOAD TRANSFER TAKES PLACE DUE TO LATERAL ACCELERATION OF THE VEHICLE. NOW LET US CALCULATE THE VALUE OF LATERAL LOAD TRANSFER IN CASE OF CORNERING WITH THE HELP OF HALF VEHICLE MODEL IN FRONT VIEW.

SO WE HAVE SEEN FROM THE ABOVE DISCUSSION THAT WHEN A VEHICLE ACCELERATE THEN LOAD TRANSFER TAKES PLACE. MORE IS THE LOAD TRANSFER MORE IS THE NORMAL FORCE ON THE WHEEL ON WHICH LOAD IS TRANSFERRED AND HENCE MORE IS THE FRICTIONAL FORCE. THAT IS WHY VEHICLES ARE REAR WHEEL DRIVEN BECAUSE IN ACCELERATING ALONG A LINE LOAD IS TRANSFERRED TO REAR WHEEL AND SIMILARLY IN BRAKING LOAD IS TRANSFERRED TO THE FRONT WHEEL AND HENCE THE VEHICLE HAVE DISC BRAKES IN FRONT WHEEL.

FACTORS INFLUENCING THESE LOAD TRANSFERS ARE:

1.       HEIGHT OF CENTER OF MASS OR GRAVITY

2.       TRACK WIDTH

3.       WHEEL TRAVEL

4.       ACCELERATION OF THE VEHICLE

5.       MASS OF THE VEHICLE