Matematika buat automotive
By gunawan on Aug 27, 2009 | In News | 1 feedback »
Kebetulan lagi berseluncur, nemu itung-itungan ini, lupa sumbernya darimana, yang pasti dari salah satu perguruan tinggi di luar sana.
Silahkan buat yang mau iseng-iseng itung-itungan setelah otak-atik sana-sini .....
Follow up:
Cylinder volume = (π/4) x bore2 x stroke
Displacement = (π/4) x bore2 x stroke x number of cylinders
Displacement of overbore = (π/4) x (bore + overbore)2 x stroke x number of cylinders
Stroke = displacement/( π/4 x bore2 x number of cylinders)
Compression ratio = (cylinder + chamber volume)/chamber volume
Piston speed in inches per minute = 2 stroke in inches x rpm
Horsepower = (rpm x torque)/5252
Bhp loss = (elevation in feet/1000) x 0.03 x (bhp at sea level)
Horsepower = (mean effective pressure x displacement x rpm)/792,000
Torque = (mean effective pressure x displacement)/150.8
Theoretical cubic feet per minute = (rpm x displacement)/3456
Racing carb cfm = 1.1 x (rpm x displacement)/3456
Center of gravity behind front wheels = (rear wheel weight/overall weight) x wheelbase
Drive wheel torque = flywheel torque x first gera x final drive x 0.85
Wheel thrust = drive wheel torque/rolling radius
g = wheel thrust/weight
rpm after shift = (ratio shift into/ratio shift from) x rpm before shift
mph = (rpm x tire diameter)/(gear ratio x 336)
tire diameter = 2 x (section width x aspect ratio)/2540 + rim diameter
Actual mph = (new tire diameter/old tire diameter) x indicated mph
Blood alcohol concentration = (ounces x %alcohol x 0.075)/weight — (hours x 0.015)
Trackback address for this post
Trackback URL (right click and copy shortcut/link location)
1 comment
This post has 7 feedbacks awaiting moderation...
Leave a comment
| « Fitur Yang Sering Diabaikan Pada Gmail | Melibas Tikungan » |