DEPT. OF MECHANICAL ENGG. DESIGN AND FABRICATION OF OVERLOAD DETECTION IN AUTOMOBILE REVIEW-1...
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Transcript of DEPT. OF MECHANICAL ENGG. DESIGN AND FABRICATION OF OVERLOAD DETECTION IN AUTOMOBILE REVIEW-1...
VELAMMAL COLLEGE OF ENGINEERING AND TECHNOLOGY
DEPT. OF MECHANICAL ENGG.
DESIGN AND FABRICATION OF OVERLOAD
DETECTION IN AUTOMOBILE REVIEW-1
SUPERVISOR:MR.N.DINESH KUMAR TEAM MEMBERS:
ASST.PROFF M.MOHAMEDH BYSAL
MECHANICAL DEPT. R.RAJ BHARATH
U.MADHANKUMAR
AIM
TO DETECT THE MAXIMUM LOAD THAT A AUTOMOBILE CAN WITHSTAND AND TO LOCK THE STEERING IF IT EXCEEDS MAXIMUM LOAD
AUTOMOBILE MAXIMUM LOAD
SHARE AUTOS[3WHEELERS] 350kg
BUSES[4WHEELERS] 10[tonnes]
COMMERCIAL TRUCKS[4WHEELERS]
22.5[tonnes]
GYPSY[4WHEELERS] 400kg
WHY THIS PROJECT
MANY ROAD ACCIDENTS HAPPEN DUE TO LOADING PASSENGERS MORE THAN A LIMIT GIVEN TO THE PARTICULAR VECHICLE
THUS BY LOADING MORE PASSENGERS WHILE TAKING A SHARP CURVE THE LOAD ACTS ON THE SINGLE SIDE AND THE AUTOMOBILE TUMBLES DOWN
LITERATURE REVIEW
REFERENCE WEB:WWW.AUTO360.COM
WWW.MEKANIZMALAR.COM
REFERENCE BOOK:DYNAMICS OF MACHINERY,KINEMATICS OF MACHINERY[DR.JEYAKUMAR]
WORKING
MECHANICAL ARRANGEMENT: HERE THE ENTIRE LOAD
ACTING ON A AUTOMOBILE IS DETECTED USING MECHANICAL SENSOR
THE MECHANICAL SENSOR IS CONSTRUCTED USING GEARS,SPRINGS,RACK AND PINION ARRANGEMENT etc
WE CONVERT THE “RECIPROCATING MOTION INTO ROTARY MOTION” USING GEAR AND RACKPINION ARRANGEMENT
WORKING
ELECTRICAL ARRANGEMENT AN “AUTOMATIC IGNITION OFF”
IS USED TO ARREST THE MOMENT OF THE STEERING WHEN THE LIMIT IS REACHED
A 6V BATTERY FROM WHICH TWO TERMINALS ARE TAKEN ONE(+) IS CONNECTED TO THE IRON PIECE AND OTHER TO THE SENSOR
WHEN THE LOAD REACHES MAXIMUM CURRENT ALSO FLOWS THROUGH THE (-) TERMINAL THUS MAKING THE IRON PIECE A MAGNET AND ARRESTING THE STEERIN MOTION
DIMENSIONSGEAR TEETH CALCULATIONS: GEAR RATIO : 1 NUMBER OF TEETH : 20 DIAMETERAL PITCH : 5 PITCH DIAMETER : 4 OUTSIDE DIAMETER : 4.4 ADDENDUM : 0.2 DEDENDUM : 0.231 TOOTH THICKNES : 0.314 WORKING DE : 0.4 WHOLE DEH : 0.43 BASE DIAMETER : 4.5 PRESSURE ANGLE : -2.30 [ALL DIMENSION ARE IN MM]
FORMULA USED: TO FIND INVOLUTE:X(T)=RCOS(T)+Y*TSIN(T) Y(T)=RSIN(T)-Y*TCOS(T) WHERE T, IS TOOTH THICKNESS. PITCH DIAMETER(Pc)=3.14D/T
WHERE D.IS THE OUTSIDE DIAMETEER
MODULIUS(M)=D/T
YET TO BE………………….
THE PROCESS OF CONTROLING THE MOTION OF THE AUTOMOBILE IS TO BE DESIGNED ,BECAUSE THE LOAD VARIES ON THE CHASIS EVEN IF THERE IS A UPS AND DOWNS IN THE ROADS .SO ACCURATE DETECTION AND IGNITION OFF MUST BE DESIGNED
COST ESTIMATION
EQUIPMENT
PARTS COST[RS]
SPUR GEARS[3] 3X150=450
SYNTHETC RUBBER 1SQFEET=300
ELECTRICAL ARRANGEMENT
500
MAINTANANCE 1000
OTHERS 500
TOTAL COST 2750[APPROX]