Simple Finite Element Model with Beam Elements for Panel Part of Spot-Welded Frame-Panel Structure.

Abstract

The high quality of the cab design and the vibration reduction of the cab are needed for the vehicle type construction machinery. As these countermeasures, the structure analysis and vibration analysis are carried out by large-scale CAE modeled with the shell elements in detailed design stage. But, when the design change is required in the evaluation using the CAE in detailed design, we have to make large-scale CAE model again. In the result, the prolongation of the development time and the increase of the calculation cost are caused. From such background, it is necessary to be simulated the strength and the vibration of the cab at the good accuracy in the conceptual design stage in order to carry out the cost reduction of the development and shortening development time. Then, the object of our study has been established the simple finite element model based on the beam elements for carrying out CAE in conceptual design stage in the design field easily. We have studied the evaluation method of torsional rigidity for the spot-welded frame which had been difficult to be calculated, and have been modeled the frame part of the cab with beam element. In this paper, we present the simple FE model with the rhombic beam elements for the panel part. We can establish the simplified FE model of the cab for static analysis and eigenvalue analysis.