Research Of Leakiness Of Cabin Pressure Control System

Along with the request of modern airplane of continuously mobility and continuously increase of electron equipment, the environment control system have more and more request. Cabin pressure control system fell into three phases, included blow, electron- blow, digital. Adapt development of the modern airplane, digital cabin pressure control system have more and more advancement. This dissertation mainly researches stability of non- airtight cabin pressure control system. We know the airplane is airtight, but in fact that the airplane is non- airtight. Because of the non- airtight cabin, we must consider the gas leakiness of the cabin. For satisfied all requirements of the airplane flying, the cabin has the most gas leakiness. Under this the most gas leakiness, we can control the airplane safely. If the gas leakiness exceed the most gas leakiness, the exhaust valve has not control cabin pressure availability. Airplane will possibility have an accident. This dissertation will found the mathematics model of cabin pressure control, analyse dynamic and static capability of the airplane under the fly system. The most advanced software named Statemate Magnum is used to simulate and emulate in digital pressure adjuster of cabin. Statemate Magnum has the most advanced behavior graphic modeling and ante type building technology. It can visually and truly incarnate the demand of devisers when it is emulating for a system. It can offer parameter for the airplane design and produce.