VIRTUAL ROUND PRESENTATIONEFFI-CARS 2015-2016

TEAM NAME: DAKSH

TEAM REGISTRATION ID: EC1012

DR. B. R. AMBEDKAR NATIONAL INSTITUTE OF TECHNOLOGY, JALANDHAR

FACULTY ADVISORTEAM DAKSHDr. Anish SachdevaAssociate ProfessorDepartment of Industrial and Production EngineeringDr. B. R. Ambedkar National Institute of Technology, Jalandhar

TEAM DAKSH 2015-2016S.No Name of Team Member Year of

DegreeRole in Project Previous Experience

1 Nitin Kumar Pre-Final Captain Co-Head SAE NITJ, Member TIES

2 Sushant Bhalla Pre-Final Manager &Vice Captain (Driver) Co-Head Events TechNiti, Member TIES

3 Ankit Chouhan Pre-Final Designing Head Member Designing Team, SAENITJ

4 Anmol Sharan Nagi Pre-Final Electrical Head Head AdrenaLANRush, Member SPICE, R’TIST

5 Kartik Maheshwari Pre-Final Marketing Head Co-Head SAENITJ, Member TIES

6 Gurwinder Singh Pre-Final Technical Head Member TIES

7 Himanshu Agrawal Pre-Final Research & Development MEMBER SPICE, R’TIST

8 Jashanpreet Singh Pre-Final Marketing & Driver Member TIES

9 Manpreet Singh Pre-Final Quality and Safety Member TIES

10 Sudhanshu Kumar Pre-Final Technical Member TIES

TECHNICAL SPECIFICATIONS OF THE VEHICLE

• Estimated weight:• Estimated cost:• Length x Width x Height:• Ground Clearance:• Tyre Size:• Maximum Steering Angle:• Minimum Turning Radius:

• Laden Capacity:• Maximum Speed: 27 kph• Battery Specifications:

Amaron Quanta 12V 84Ah (351*167*203mm)

• Motor Specifications: BLDC 48V 850 Watts (1500-3000 RPM)

• Battery Runtime*: 6-7 hours

*full load and full speed

• Seats: Side-by-Side (Acrylic Fiber)

FRAME DESIGN AND FEA

MATERIAL SELECTION CRITERIA

AISI 1239 tubes are selected to fabricate the chassis.Reasons supporting the choice:• Good yield strength; Will allow the usage of

tubing with smaller wall thickness, in turn reduces the weight of chassis.

• Highly ductile ( Elongation % > 18% ); Suffer more deformation before ultimate failure.

• Carbon content > 0.1%

• Economical, Locally available and Good Weldability.

Material Yield Strength

(KSI)

Modulus of

Elasticity(KSI)

Cost per meter(INR)

Elongation at Yield

Point(%)

AISI 1018 53.7 29700 2361 15

AISI 1020 42.7 29700 4000 36

IS 1239 59.12 29700 1370 18.5

AISI 4130 65.1 29700 5640 25.5

POWER TRANSMISSION MECHANISM

STEERING NOTES AND CALCULATIONS

• STEERING DEISGN:Rack and Pinion type.

• STEERING GEOMETERY:Ackermann Geometry.

• CONSIDERATIONS:Reduction in steering effort.Better ride.Safety and Durability.

• Features:Simple to manufacture.Decreased steering effort.Decreased steering wheel travel.Increased steering responsiveness.

WHEEL BASETRACK WIDTH

ACKERMANN ANGLEINNER STEERING

ANGLEOUTER STEERING

ANGLESTEERING RATIO

TURNING RADIUSSCRUB RADIUS

STEERING WHEEL LOCK TO LOCK

BRAKE, WHEEL & TYREDESCRIPTION:

• Disc Brakes• 160mm Disc on each wheel• Braking force: 1320 N• Brake efficiency: 60%• Braking distance*: 3.42m

*average speed of 25kph

• Static Weight Transfer: 25% (Front) 75% (Rear)

• Weight Transfter: 40.62% (Front) 59.38% (Rear)

• Wheel ISO grade:• Rim dimension:• Outer diameter of tyre:

SUSPENSION

Isometric View

CHARACTERISTIC FRONT REAR

Camber -1.5⁰ -1.5⁰

Caster 4⁰ 4⁰

Mechanical trail 26 mm 26 mm

Natural frequency 2.64 Hz 2.2 Hz

Motion ratio 0.770 0.683

Roll center height 3.86 cm 4.79 cm

Camber gain 0.5 / degree roll 0.6 / degree roll

Caster gain 0.1 / degree roll 0.1 / degree roll

Spring constant ( K ) 35.23 N / mm 52.3 N / mm

Ride rate 27 N / mm 35.7 N / mm

Roll stiffness 0.97 degree / g 0.97 degree / g

Wheel travel 2” 2”

Top View

Type: Double Wishbone

SAFETY FEATURES• Rollover cage.• HANS protection gear.• Power kill switch.• 4 Point seat belt.• Properly covered moving parts.• First aid kit.• No exposed circuitry or loose wires.• No reflecting surfaces.• Helmets.

COST REPORT

UNIQUE SELLING PROPOSITION

• Inexpensive to operate.• Luggage in rear carrier.• HANS gear to replace airbags.• Tax credits available ( Union Budget 2015 ).• Less maintenance.• Reduce greenhouse gas emissions.

COMMERCIAL FEASIBILITYThe vehicle has been designed in such a way that the vehicle can be commercially

used for various purposes. The features that support its commercial feasibility are listed below:

• Ergonomic Design: The vehicle has been designed ergonomically for two adult drivers of normal height and weight.

• Easy Handling: For people of all age groups. Older people can comfortably drive in upright position.

• Easy Steering: Lesser weight, higher strength. Hence, easy to steer in crowded areas in day to day life. These are suitable for long distance rides with minimum effort.

• Safety: Vehicle well equipped with safety features like disc brakes, horn, belt, light, rear view mirror, shock absorber. The roll over test of the vehicle ensures the safety of drivers during an accident.

SUSTAINABLE TRANSPORTATION

• Suitable for modern day traffic: Takes less space consuming in highly dense traffic on roads of today. Most suitable.

• Patrolling by law enforcement: In public places like parks, markets and airport.

• In the rural landscape: For families that cannot afford a car but need a mode of transport within their village.

• In urban markets: Environment friendly alternative to a car. The modern generation is concerned about the environment. They would definitely like to explore cleaner options if they are marketed properly.

COMMERCIAL FEASIBILITY

• Comfort: The riding position reduces strain on the body. It is suitable for long rides and touring. It can be very easy on the neck, wrists, hands, arms, shoulders, lower back.

• Lesser Effort: Power available from both the drivers reduces the net effort from each driver during covering a large distance.

• Low maintenance cost and compact structure: Due to simple design of the vehicle, the maintenance cost of the vehicle is quite low.

• Eco friendly vehicle: Causes no pollution. Hence, it does not harm the environment.

SPONSORS

Dassault Systems

Dr. B. R. Ambedkar National Institute of Technology, Jalandhar