A pneumatic or air-filled tire is composed on an inner core that is sealed airtight and filled with pressurized air. Usually, a reinforced steel belted tread or other materials, provides the contact part with the road and seals this inner core.
The tire would remain inflated with all the vehicle's weight resting on it, because the pressure of the air inside the tire is greater than atmospheric air pressure. The pressure of the air inside the tire provides resistance against forces that try to deform the tire. This gives the tire a slight degree of a cushioning effect when the tire hits bumps in the road. If you have ever taken a ride in an old-fashioned carriage which had wooden wheels, you understand how huge of a difference a set of pneumatic tires could make.
Pneumatic tires also come with drawbacks. Highly dangerous applications or high-performance situations for instance, these tires can suffer a puncture and this would result in a total failure. The consequence of a blowout at high speeds could result in a serious car crash. Military planners should consider tires getting blown out by explosion shrapnel or gunfire. The worst nightmare of a vehicle crew is becoming trapped in a fire zone due to all of their tires becoming flat. Airless tires evidently don't suffer from these problems and thus, in certain applications, may be more suitable.
The pneumatic tire may have problems as well with the variation in tire performance and air pressure. The lower pressure in a tire could increase the traction and the comfort level. This is because of the fact that tires flatten slightly and more tread is touching the road. The pressure of the air in the tire works to maintain the "up and down" stiffness as well as maintain the lateral stiffness of the tire. Therefore, less air pressure enables the sidewalls of the tires to flex. Unfortunately, this leads to poor handling. In an airless tire, the stiffness in those two dimensions is independent.
Air pressure factors into other problems too. When it comes to maintaining correct air pressure, customers are notoriously undependable. Incorrect air pressure in tires can result in very dangerous situations. It is vital to keep in mind that pneumatic tires are susceptible to temperature changes also, which can be responsible for changing the internal pressure of the tire. It is very essential to consider the kind of settings you will be needing your machinery to operate in so that you can regularly check the tires and keep the machinery as safe as possible.