边界元法在L形活塞环扭角计算中的应用

The Application of the Boundary Element Method in the Twist Angle Calculation of Piston Ring of L-Shape

L形活塞环扭角的大小对柴油机的性能有着明显的影响。本文推导了扭角的计算式,并用边界元法对几种截面环进行了计算。结果表明该法有着很好的精度,并适用于各种截面形状环的扭角计算。

The twist angle of L-shaped piston ring has a direct influence on the performance of diesel engine. Formulae were derived for the calculation of twist angle by means of boundary element mothod. Calculated results had shown that these formulae are accurate and practical.