关键词: 波浪补偿；差动行星传动；混合离散变量；模糊可靠性；优化设计

Abstract:

Fuzzy reliability was applied to the optimization design of the differential planet transmission mechanism for heave compensation.Mathematical model of
the fuzzy reliability optimal design was established with minimizing volume,minimizing radial
dimension,maximizing efficiency,minimizing temperature of bearing for planet gear,
minimizing film thickness ratio of external mesh,minimizing teeth bottom and maximizing
gliding ratio of external mesh.Fuzzy decision-making method dealing with multi-objective
optimal problem and hybrid discrete variables was studied based on genetic algorithm.
The method of solving multi-objective optimal problem was given.
Analysis and computation were made due to the examples.With respect to comparability
and analysis,it draws a conclusion that fuzzy reliability optimal design is more practical
to engineering problems.

Key words: :heave compensation;differential planet transmission, hybrid discrete variable；fuzzy reliability；optimization design