【摘要】 船舶推进轴系在运转中承受着复杂的负荷和应力,良好的承载状态对船舶长期安全航行具有重要意义。设计一种基于应变片的无线遥测系统,以实现不同对中状态下的轴系动态负荷测量。根据不同截面测得的应变数据结合建立的单支点负荷计算模型,求得各轴承的实际负荷。在搭建的轴系缩比试验台上测得的负荷值与通过有限元模型仿真求得的负荷值相差不大,证明了该测试方法的可靠性。更多还原

【Abstract】 The propulsion shafting systems of ships bear complicated loads and stresses in the sailing. A good load distribution is of great importance for ship’s long-term and safe voyage. In this paper, a wireless telemetry system based on strain gages is designed to measure the dynamic loads of the propulsion shafting system in different shaft alignment states.Based on the strain data measured in different sections, a single-support load computation model is established. The real loads of different bearings are calculated. Experiment is carried out for the scaling model. The difference of results in the experiment and the finite element modeling is found to be small. Thus, reliability of this testing method is verified.更多还原