CAJ | 학술논문

提出一种水洞中螺旋桨轴系艉支承结构轴承处载荷的辨识原理，该方法通过实测的支承反力反求施加在艉轴承处的作用力。侧重于测试方法的原理描述，通过建立艉支承结构的简化模型，对有预应力的支承结构的载荷－力响应关系进行推导，得到了结构轴承处的载荷－支承反力的解析表达式，然后在此基础上构建轴承处载荷的辨识原理。仿真结果表明，该方法辨识精度较高，可用于水洞中螺旋桨轴系艉轴承处的载荷辨识。
제출일충수동중라선장축계미지승결구축승처재하적변식원리，해방법통과실측적지승반력반구시가재미축승처적작용력。측중우측시방법적원리묘술，통과건립미지승결구적간화모형，대유예응력적지승결구적재하－력향응관계진행추도，득도료결구축승처적재하－지승반력적해석표체식，연후재차기출상구건축승처재하적변식원리。방진결과표명，해방법변식정도교고，가용우수동중라선장축계미축승처적재하변식。
A principle for identifying stern bearing loads of a propeller shaft system in a water tunnel was presented here.With this method,the loads on the sthern bearing surface were obtained through directly measuring support reactions.The principle of the measuring method was described here,the simplified model of a bearing-support structure was established.The load- force-response relationship of a pre-loaded support structure was deduced,the analytical expressions for bearing loads-support reactions was acquired.Furthermore,an identification algorithm for bearing loads was established.Simulation results showed that this method has a relatively high precision,and is suitable for the stern bearing load identification of a propeller shaft system in a water tunnel.