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If the absolute temperature of the air in the tire increases by 1% to 303 K (30 °C; 86 °F), the absolute pressure also increases by 1%. The absolute pressure is the sum of the ambient atmospheric pressure (approximately 1.01 bars [101 kPa; 14.7 psi] at sea level) and the gauge pressure, giving a total of 3.21 bar (321 kPa; 46.6 psi).
Ground pressure is the pressure exerted on the ground by the tires or tracks of a motorized vehicle, and is one measure of its potential mobility, [1] especially over soft ground. It also applies to the feet of a walking person or machine. Pressure is measured in the SI unit of pascals (Pa). Average ground pressure can be calculated using the ...
Orders of magnitude (pressure) This is a tabulated listing of the orders of magnitude in relation to pressure expressed in pascals. psi values, prefixed with + and -, denote values relative to Earth's sea level standard atmospheric pressure (psig); otherwise, psia is assumed. Magnitude. Pressure. lbf/in 2 or dB.
A tire-pressure gauge displaying bar (outside) and psi (inside) Since tires are rated for specific loads at certain pressure, it is important to keep the pressure of the tire at the optimal amount. The precision of a typical mechanical gauge as shown is ±3 psi (21 kPa). Higher precision gauges with ±1 psi (6.9 kPa) uncertainty can also be ...
The pascal (Pa) or kilopascal (kPa) as a unit of pressure measurement is widely used throughout the world and has largely replaced the pounds per square inch (psi) unit, except in some countries that still use the imperial measurement system or the US customary system, including the United States.
P is the tire inflation pressure ( kPa / psi) Z is the applied load for vehicle weight ( N /Lbs) V is the vehicle speed ( km/h / mph) alpha, beta, a, b, c are the coefficients for the model. The units of the coefficients are matched to the units used in the model, i.e. (metric / Imperial).
For load range "B" tires, ETRTO (ISO-Metric) standards specify the load index rating at an inflation pressure of 36 psi (250 kPa) (table below), while P-Metric standards measure the load capacity at an inflation pressure of 35 psi (240 kPa). The two standards vary slightly with the capacity required for different inflation pressures. [19]
Aircraft tires generally operate at high pressures, up to 200 psi (14 bar; 1,400 kPa) for airliners, [2] and even higher for business jets [citation needed].The main landing gear on the Concorde was typically inflated to 232 psi (16.0 bar), whilst its tail bumper gear tires were as high as 294 psi (20.3 bar). [3]