To obtain the cylinder pressure, we need to obtain the following data first:
1. The mass or volume flow rate of the gas and its density;
2. The moving speed of the piston (or its displacement);
3. Surface area of piston.
The reverse force F exerted by the gas on the piston can be obtained by the formula F = mg - (ma)v²/r, where m represents the mass flow rate of the gas, g is the acceleration of gravity, a represents the acceleration of the gas, v is the speed of the piston, and r represents the radius of the cylinder. The area A of the piston in contact with the cylinder can be calculated by the formula A = πr², where r is also the radius of the cylinder.
This APP is mainly used to assist college students to complete complex mechanical force calculations.