Evaluation method and application of machine design scheme based on information content measurement model

As machine is designed, special design requirements are influenced by various restraint factors in the practice. The evaluation of its scheme usually features multi levels, multi attributes and a mixed type of both qualitative and quantitative indices. Therefore this paper researches on the evaluation of the machine design scheme and provides an evaluation method of the machine design scheme based on information content measurement model. That model firstly makes an analysis of all the factors that work influences on the design application and brings out an evaluation index system on the basis of the information independence. Secondly, the model obtains the entire information content of the scheme by establishing information content calculating models of multi-level evaluation indices, and achieves the optimization analysis of machine design scheme on the basis of different sizes of information content. Finally, the paper tests the effectiveness of the model with the application example. © Yang and Che.