The air-filled or pneumatic tire is composed of a core filled with airtight sealed pressurized air. Typically, a tread made with reinforced steel belting or other materials, provides the contact part with the road and seals this inner core.
Because the pressure of the air in the tire is greater than atmospheric air pressure, the tire remains inflated even with a vehicles' weight resting on it. The pressure of the air in the tire gives resistance against forces that try to deform the tire. When the tire hits bumps in the road, this gives the tire a slight degree of a cushioning effect. If you have experienced taking a ride in an old-fashioned carriage that had wooden wheels, you know precisely how big of a difference a set of pneumatic tires makes.
Pneumatic tires also come with disadvantages. Highly dangerous applications or high-performance situations for instance, these tires can suffer a puncture and this will result in a complete failure. The consequence of a blowout at high speeds can result in a dangerous car crash. Military planners should take into account tires getting blown out by firing of guns or explosion shrapnel. A vehicle crew's worst nightmare is becoming trapped within a fire zone because of all of their tires becoming flat. Airless tires evidently don't suffer from these type of issues and thus, in certain applications, could be more suitable.
The pneumatic tire may have problems as well with the variation in tire performance and air pressure. The lower pressure inside a tire may increase the traction and the comfort level. This is due to the fact that tires flatten a little and more tread is placed in contact with 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. Thus, reduced air pressure enables the tires' sidewalls to flex. This results in poor handling unfortunately. Within an airless tire, the stiffness in those two dimensions is independent.
There are other problems with air pressure. Consumers are notoriously undependable when it comes to maintaining correct air pressure. Tires which have improper air pressure can lead to dangerous situations. It is really essential to bear in mind that pneumatic tires are also susceptible to temperature changes, which can be responsible for changing the internal pressure of the tire. It is important to take into consideration the kind of environments you would be needing your machinery to operate in so that you can regularly inspect the tires and keep the machine as safe as possible.