Date Formula Student

download Date Formula Student

of 21

  • date post

    12-Apr-2015
  • Category

    Documents

  • view

    111
  • download

    1

Embed Size (px)

Transcript of Date Formula Student

Model similar 1 FSTRE 2 sursa http://universityracing.tue.nl/index.php/cars/ure07/68-ure07 General: Weight: 244 kg Length: 2550 mm Width: 1520 mm 0-100 time: 4 s Chassis: Aluminium honeycomb structure sandwich panels Foam crash nose Powertrain: Engine: Suzuki GSX-R 600 K6 Exhaust: Custom made by Bos Exhausts Fuel system: Student designed injection system with MoTeC M400 Differential: Torsen limited torque, bias ratio 3:1 Final drive: Aluminum-magnesium alloy sprocket Driveshafts: Aluminum shafts connected with flexplates Suspension Type: double A-arm, independent bump and roll tuning Trackwidth: front 1250 mm , rear 1200 mm Wheelbase: 1600 mm Wheels: 13 Aluminium Keizer with magnesium center Front pull-rod, rear push-rod actuated KONI 2612 custom valving dampers Tyres: 20.57-13 R25B Hoosier Brakes: three 4 piston calipers Electronics Data acquisition sytem with 40 Sensors at 200hz over CAN Custom designed steering wheel with shift lights and information LCD

Model similar 2 http://lms.mech.upatras.gr/Formula/uop3.html Competitors please replace the sample specification values in the table below with those appropriate for your vehicle and submit this to with your design report. This information will be reviewed by the design judges and may be referred to during the design event. --Please do not modify format of this sheet. Common formatting will help keep the judges happy! --The sample values are fictional and should not be used as the baseline for your designs. 103 Car No. School University of Patras

Dimensions Overall Length, Width, Height Wheelbase Track Width Weight with 68kg driver Suspension Parameters Suspension Type

Front Rear 2537mm long, 1431mm wide, 1146mm high 1650mm 1240 mm N/A Front Double unequal length AArm. Pull rod actuated horizontally oriented spring and damper 18x7.5-10 R25B Hoosier slicks/19.5x6.5-10 Hoosier wets 7.5 inch wide, 3 pc Al Rim, custom Al center 250 mm above ground 30mm jounce/rebound N/A 1 degrees per g, 1.5 Hz N/A N/A 0.90 / linear 0.15 deg/mm 0.25 deg/deg 1.5 Hz N/A N/A 0.90 / linear 0.1 deg/mm 0.3 deg/deg

1220 mm N/A Rear Double unequal length AArm. Pull rod actuated horizontally oriented spring and damper 18x7.5-10 R25B Hoosier slicks/19.5x6.5-10 Hoosier wets 7.5 inch wide, 3 pc Al Rim, custom Al center

Tire Size and Compound Type Wheels (width, construction) Center of Gravity Design Height Suspension design travel Wheel rate (chassis to wheel center) Roll rate (chassis to wheel center) Sprung mass natural frequency Jounce Damping Rebound Damping Motion ratio / type Camber coefficient in bump (deg / m) Camber coefficient in roll (deg / deg)

30mm jounce/rebound N/A

Static Toe Static camber and adjustment method Front Caster and adjustment method Front Kingpin Axis Kingpin offset and trail Static Akermann and adjustment method Anti dive / Anti Squat Roll center position static Roll center position at 1g lateral acc Steer location, Gear ratio, Steer Arm Length Brake System / Hub & Axle Rotors

-1 deg toe, adj. via rodends on tie rods -3 deg, adj. via shim plates

0 deg toe, adj. via rodends on fifth member -1 deg, adj. via shim plates

3 degrees adjustable via front rodends 0 degrees non-adjustable 81mm offset, 43mm trail 180%, adjustable via multiple steering arm mounts 10% anti dive 10% anti squat 70mm above ground, CL of 76mm above ground, CL of car car 62mm above ground, moves 70mm above ground, moves 48mm towards inner wheel 50mm twards inner wheel Behind axle line, 75mm per revolution, 60mm steering arm

Master Cylinder Calipers Hub Bearings Upright Assembly Axle type, size, and material

Front Rear Floating, Cast Iron, hub Floating, Cast Iron, hub mounted, 180mm dia. Drilled mounted, 180mm dia. Drilled ISR rotors ISR rotors ISR 21-010-OC, 14mm dia., 18mm stroke, with driver adjustable bias bar ISR 22-048 OB four piston ISR 22-048 OB four piston SKF 7012 CDGA/P4A SKF 7012 CDGA/P4A angular contact ball bearing angular contact ball bearing CNC 7075-Al, integral CNC 7075-Al, integral caliper mount caliper mount Rotating axle, 45mm dia, Rotating axle, 45mm dia, 7075 Aluminum 7075 Aluminum with integrated tripod housings

Ergonomics Driver Size Adjustments Seat (materials, padding)

Driver Visibility (angle of side view, mirrors?) Shift Actuator (type, location) Electromagnetic solenoid, actuated via push buttons on steering wheel Clutch Actuator (type, Hydraulic, hand actuated, steering wheel mounted location) Instrumentation Steering wheel mounted dash, RPM, speed, coolant/oil temp., 5 LED tach/shift light Frame Frame Construction Material

Fixed seat and steering wheel Foam padding mounted to monocoque via velcro, padded knee protection, 40mm foam head support 110 degree angle of visibility on each side, no mirrors

Two piece carbon fiber monocoque 200gr/m2 carbon fiber cloth, epoxy resin, Airex C70.40/aramid honeycomb core

Joining method and material Targets (Torsional Stiffness or other) Torsional stiffness and validation method Bare frame weight with brackets and paint Crush zone material Crush zone length Crush zone energy capacity Powertrain Manufacture / Model Bore / Stroke / Cylinders / Displacement Compression ratio Induction (natural or forced, intercooled)

VARTM and vacuum bagging/2 part room temp. cure epoxy 18kg weight N/A 21kg Aluminum foam 200mm FEA 8250 joules

Throttle Body / Mechanism Fuel Type Max Power design RPM Max Torque design RPM Min RPM for 80% max torque Fuel System (manf'r, and type)

2008 Yamaha WR450 95mm bore / 63mm stroke / 1 cylinder / 449 cc 12.3:1 Atmospheric induction, RP manufactured student designed with 20mm incorporated restrictor 30mm, butterfly type, cable actuated 98 octane petrol 9000 7500 5500 Student designed/built fuel injection system using Keihin 550cc/min injectors and Haltech E6X ECU Hall-effect crank trigger, Oil temp, Water temp., Air temp, Throttle pos. 3 bar 40mm before and pointing towards intake valve 3000 cc, 235mm Student des/built, Inox, 47mm dia. 1350mm

Fuel System Sensors (used in fuel mapping) Fuel Pressure Injector location Intake Plenum volume and runner length(s) Exhaust header design Effective Exhaust runner length Ignition System Ignition Timing

Student designed, single coil 3-D map, RPM and Throttle position, 23 deg BTDC max advance Oiling System (wet/dry sump, Dry sump, OEM engine mods) integrated oil pump

Coolant System and Radiator location Fuel Tank Location, Type Muffler Other significant engine modifications Drivetrain Drive Type Differential Type Final Drive Ratio Vehicle Speed @ max power (design) rpm 1st gear 2nd gear 3rd gear 4th gear 5th gear 6th gear Half shaft size and material Joint type

Single sidepod mounted radiator with ECU controlled electric fan Floor mounted between firewall and engine, aluminum sheet tank w/fuel bladder, 4.5L capacity Titanium FMF exhaust muffler N/A

DID ERV 520 chain Drexler LSD - Formula student, 25Nm preload, torque bias 1,25/1,33/1,5 2,57 136 Km/h 46 km/h 64 km/h 84 km/h 106 km/h 132 km/h N/A 20mm dia. Structural steel CK60 halfshafts Fiat 128 tripod CV joint, student des/built 7075 aluminum tripod housings

Aerodynamics (if applicable) Front Wing (lift/drag coef., material, weight) Rear Wing (lift/drag coef., material, weight) Undertray (downforce/speed) Wing mounting Optional Information Body Work? Special Bit A? Special Bit B?

N/A N/A N/A N/A

Carbon fiber nosecone and sidepods, 1.6 kg complete bodywork

Model similar 3 http://lms.mech.upatras.gr/Formula/uop2evo1.html FSG2008 - Design Spec Sheet

Car Number University Dimensions Overall Length [mm] Overall Width [mm] Overall Height [mm] Wheelbase [mm] Track [mm] Weight with 68kg (150lb) driver [kg] Suspension Parameters Suspension Type

086 UoP Racing Front 2590 1574 1247 1530 1210 124 Rear

1200 144

Tire Size and Compound Type Wheels

Design ride height (chassis to ground) [mm] Center of gravity design height [mm] Suspension design travel jounce [mm] Suspension design travel rebound [mm] Wheel rate (chassis to wheel center) [N/mm] Roll rate (chassis to wheel center) [degrees/g] Jounce damping (chassis to wheel center) [Ns/mm] Rebound damping (chassis to wheel center) [Ns/mm]

Front Unequal length A-Arms. Fox DHX 5.0 spring/damper units installed above chassis, actuated via push-rods 160/530 -13" Silverstone FTZ Sport Slick Gloria cars 13" x 152.4mm -6mm offset, AlSi7Mg aluminium alloy 120 247 25,4 25,4 N/A N/A N/A N/A

Rear Unequal length A-Arms. Fox DHX 5.0 spring/damper units installed above chassis, actuated via push-rods 160/530 -13" Silverstone FTZ Sport Slick Gloria cars 13" x 152.4mm 6mm offset, AlSi7Mg aluminium alloy 80

25,4 25,4 N/A

N/A N/A

Sprung mass (incl. 68 kg driver) natural frequency [Hz] Motion type Motion ratio (spring travel/wheel center travel) [mm/mm] Camber coefficient in bump [deg/mm] Camber coefficient in roll [deg/deg] Static Toe [degrees] and adjustment method Static camber [degrees] and adjustment method Front Caster Angle [degrees] and adjustment method Front Kingpin Inclination [degrees] Kingpin Offset [mm] Kingpin trail [mm] Static Ackermann and adjustment method Anti dive / Anti Squat [%] Roll center position static (above ground) [mm] Roll center position at 1g lateral acceleration [mm] Steer location, Steering ratio (steering wheel / inner wheel) [degrees/degrees], Steer Arm Length Brake System / Hub & Axle Rotors (incl. outer and inner diameter [mm] of friction surface) Master Cylinders (incl. diameters [mm]) Calipers (incl. diameters [mm]) Hub Bearings

2,00 linear N/A

2,00 linear N/A

0,05 1,00 0 degrees toe out via adj. steering links 4 degrees by shims on upright 2 degrees non-adjustable 4 degrees non-adjustable 81,01 43 N/A N/A N/