Papers by Keyword: Cabin

Abstract: The selection, fitting and evaluation methods of response surface functions are expounded. The parameter sensitivity analysis of the cabin is carried out. The response surface functions of the stress and the vibration frequencies are constructed through the Box-Behnken experimental design method. Fitting inspection on the response surface functions is done with correlation coefficient, correction coefficient, etc. The results show that the response surface models are very similar to the real models. Four design variables are extracted randomly as the test sample of each response surface function. The data gotten by the response surface function are compared with the data gotten by the finite element analysis. The results show that the response surface models are with high accuracy and can reflect the real test values well. These response surface models can be used for further optimization design. They are helpful in reducing the ship mass without exceeding the allowable stress and resonance.

Abstract: —In this paper we test the cabin by the wind and found that there is intake high pressure zone, it is easily conducive to airflow into the cabin and under the cabin, there is a negative pressure zone under the cabin, it is conducive to airflow outside of the cabin both the zones of different pressure affect the airflow.

Abstract: Using OptiStruct as the tool of optimization, the topology optimization of one special carriage’s square cabin is studied. The methodology of structural topology optimization is present and the key technology is discussed. the weight of the top-placed facility pedestal is set as the optimization objective,and its optimization model is developed. The establishment method of the optimization objective function, design variables and constraint condition are introduced. Through optimization calculation, the result of topology optimization is analyzed. The conclusion provides a significant researching basis for lightening the weight of cab.