Analysis Of The Bus Frame Lightweight Of YBL6120H Coach

Bus body frame is the important load bearing, its quality also occupies the passenger train lumpy mass about 1/4, the body frame lightweight design to reduces the automobile the quality to have the extremely vital significance.The finite element method is uses in studying and analyzing the passenger train one kind effective and the practical tool. The technical personnel uses the information which obtains from in the passenger train automobile body finite element model numerical analysis result to confirm the passenger train automobile body experiment or the improvement passenger train body design. This topic through a section bus half load bearing type body frame finite element analysis computation, seeks the truly feasible body frame lightweight way.This article content mainly has following several aspects:1.This topis introduced the background and the significance of lightweight the passenger train body and sum up the method of lightweight.With a view to the practice complexion of our company,elaborated the finite element method in the passenger train body frame intensity analysis application;2. Using MSC. NASTRAN as the analyze software, And uses the precision high entire board shell unit to establish the body frame finite element model, In the static state curving, under the crooked altogether situation carries on the intensity analysis to the passenger train body frame, Calculates under these two kind of situations the automobile body simulation stress to be altogether big and the small spot, Analyzes reason which these stresses produce.3. In two kind of typical operating mode research foundation, Using the clue which obtains,carries on the lightweight improvement design to the original design passenger train automobile body,And uses the finite element analysis software to carry on the stress simulation confirmation after lightweight improvement design passenger train body.