Sword7 said:Hello folks,
Does anyone know any formula about g-force measurement when launching into orbit? For example, 1 G at ground, 3-5 G during launching, 0 G at orbit.
Thanks,
Tim
pixel01 said:One G equals to 9.8m/s2. You have 1 G at the surface of the Earth as well. So before launching, the g-force is 1 G (just like you and me have). At the launch, if the acceleration is ~20m/s2 so the astronauts bear about 3 G , and so on. In orbit, the g-force is almost zero and you have O G.
D H said:Pixel is correct. Relative to a free-falling reference frame, that rocket is accelerating upward at about 30 m/s^2, not 20.
The formula for calculating G-force is G = (F/m) where G is the G-force, F is the force exerted by the rocket, and m is the mass of the object being launched.
G-force measurements can differ between different types of spacecraft due to variations in size, shape, and propulsion systems. For example, a smaller spacecraft with a powerful propulsion system may experience higher G-forces compared to a larger spacecraft with a less powerful propulsion system.
Yes, excessive G-forces can be harmful to astronauts during a launch into orbit. It can cause physiological effects such as loss of consciousness, blurred vision, and muscle strain. That's why spacecraft are designed to limit G-forces and astronauts undergo rigorous training to prepare their bodies for the effects of launch.
G-force is typically measured using an accelerometer, which is a device that measures the acceleration of an object. Accelerometers are usually installed in the spacecraft and can provide real-time data on the G-forces experienced during launch.
The maximum G-force experienced during a launch into orbit can vary depending on the spacecraft and its trajectory. Generally, astronauts can experience up to 3-4 Gs during launch, but some spacecraft can reach up to 8 Gs. However, the G-forces usually decrease as the spacecraft reaches higher altitudes and the engines reduce their thrust.