The coupling influence of sand-and-dust and low environment pressure on the main bearing and big end one of engine was calculated by the use of the commercial software EXCITE Designer from AVL Company.

• 利用AVL公司提供的商用软件EXCITE Designer计算低气压和沙尘对发动机主轴承和连杆大端轴承工作性能的耦合影响。