Thursday, January 29, 2015
Difference between strength and stiffness ?
Stiffness vs Strength
Stiffness and Strength — same thing, right?
Stiffness and strength are two of the most commonly confused terms in the bicycling world, and many people use them interchangeably. But these are two different things, and building the best-performing frame requires knowing the difference.
So let's start with the engineering definitions:
Strength:
A measure of the maximum load that can be placed on a material before it permanently deforms or breaks. Engineers often use this as yield stress, σy, as a measure of a material's strength.
Stiffness:
A measure of the amount of deflection that a load causes in a material. Engineers use a value called Young's modulus, E, for stiffness.
“All steels have approximately the same stiffness.”
It is easy to see why these two terms would be confused. Something that is 'flimsy' might break when a small load is placed on it — it has low strength — and it might also deflect a large amount with the same load — it has low stiffness.
But these two terms aren't interchangeable.
A piece of rubber surgical tubing has very low stiffness because it deflects a lot under load, but it is relatively strong. A piece of glass filament is the opposite — it deflects very little under load but might not carry a huge load before it breaks.http://www.vendettacycles.com/vendettacycles/stiffness.htm
Wednesday, January 28, 2015
Monday, January 26, 2015
Sunday, January 25, 2015
Monday, January 19, 2015
Sunday, January 18, 2015
Technical words and their full form
Technical words and their full form
- CRDi - (Common Rail Direct Injection)
- TDi - (Turbocharged Direct Ignition)
- DTS-i - (Digital Twin Spark Ignition)
- VTVT - (Variable Timing Valve Train)
- MPFI - (Multi point fuel injection)
- ABS - (Anti Lock Braking)
- SOHC - ( Single OverHead Camshaft)
- DOHC - (Double Overhead Camshaft)
- SUV - (Sport Utility Vehicle)
- MUV - (Multi Utility Vehicle)
- SAE - (Society of Automotive Engineers)
- HCV - (Heavy Commercial Vehicle)
- LCV - (Light Commercial Vehicle)
- CVTi - (Charged motion Variable Time Ignition)
- CCVTI - (Controlled Combustion Variable Timing Ignition)
- EBD - (Electronic Brakeforce Distribution)
- BHP - ( Brake Horse Power)
- BMEP - (Brake Mean Effective Pressure)
- BSFC - (Brake Specific Fuel Consumption
- CC - (Cubic Capacity)
- CDI - (Capacitor Discharge Ignition)
- C.I ENGINE - (Compression Ignition Engine)
- CNG - (Compressed Natural Gas)
- DFI - (Digital Fuel Injection)
- DI ENGINE - (Direct Injection Engine)
- EC ENGINE - (External Combustion Engine)
- FHP - (Frictional Horse Power)
- GVW - (Gross Vehicle Weight)
- HVAC - (Heating ventilating and Air Conditioning)
- IC ENGINE - (Internal Combustion Engine)
- IHP - (Indicated Horse Power)
- IMEP - (Indicated Mean Effective Pressure)
- ISFC - (Indicated Specific Fuel Consumption)
- Kph - (Kilometer Per Hour)
- Kpl - (Kilometer Per Liter)
- OHV - (Over Head Valve)
- SFC - (Specific Fuel Consumption)
- SI ENGINE - (Spark Ignition Engine)
- VDB - (Ventilated Disc Brake)
- VVTi - (Variable Valve Timing)
- 4WD - (Four Wheel Drive(FWD))
- 2WD - (Two Wheel Drive)
- TC - (Traction Control)
- ESC -(Electronic Stability Control)
- ARAI -(Automotive Research Association of India
- EGR -(Exhaust Gas Recirculation)
- EVRV -(Electronic Vacuum Regulator Valve)
- WGT -(Waste Gas Turbocharger)
- VGT - Variable Geometry Turbocharger) from:http://myautomobileguide.blogspot.in/
Saturday, January 17, 2015
Wednesday, January 14, 2015
Tuesday, January 13, 2015
Monday, January 12, 2015
Saturday, January 10, 2015
Friday, January 9, 2015
Thursday, January 8, 2015
Wednesday, January 7, 2015
engine best pics from google images
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| Engine block |
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| Piston with connecting rods |
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| fuel pump to injector |
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| Suspension |
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| fuel injector |
Saturday, January 3, 2015
DIFFERENCE BETWEEN SLOT,GRROVE,HOLE
source:QUORA answered by NEHA SHAAH
#Hole:
is a circular cutout
can be a through hole or extend only upto a blind depth
we can also have a stepped hole
this figure might help you to visualize
#Slot:
-a slot is an elongated hole.
-it is stretched in one direction and usually has full radii on both ends
(the edges may or may not be round)
-usually a slot is cut into a flat plate
this a how a slot looks
#Groove :
-usually cut along the edge
-elongated cutout , usually cylindrical
-often used in welding
here are a few types of grooves used for welding
#Hole:
is a circular cutout
can be a through hole or extend only upto a blind depth
we can also have a stepped hole
this figure might help you to visualize
#Slot:
-a slot is an elongated hole.
-it is stretched in one direction and usually has full radii on both ends
(the edges may or may not be round)
-usually a slot is cut into a flat plate
this a how a slot looks
#Groove :
-usually cut along the edge
-elongated cutout , usually cylindrical
-often used in welding
here are a few types of grooves used for welding
Friday, January 2, 2015
Thursday, January 1, 2015
The joule (pronounced DJOOL) is the standard unit of energy in electronics and general scientific applications. One joule is defined as the amount of energy exerted when a force of one newton is applied over a displacement of one meter. One joule is the equivalent of one watt of power radiated or dissipated for one second.
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