Reinforced-steel magnesium alloy passenger car frame and design method thereof

Abstract

The invention discloses a reinforced-steel magnesium alloy passenger car frame and a design method thereof, and belongs to the field of frames. The reinforced-steel magnesium alloy passenger car frame comprises a front beam, a rear beam and a connecting beam arranged between the front beam and the rear beam. The design method of the reinforced magnesium alloy passenger car frame comprises the following steps the modeling is carried out on hypermesh software according to the structural shape size of the frame, and the finite element model of the frame is imported into Ansys software; and the structural strength of various working conditions is calculated in the Ansys software. According to the reinforced-steel magnesium alloy passenger car frame, the full-magnesium alloy structure design is adopted, the structure is firm and compact, the layout is reasonable, and meanwhile, modeling is carried out through the size of the frame, strength analysis is carried out to judge whether the requirement for structural strength is met or not is judged, a real-time physical load test procedure is omitted, the test verification method is more efficient, and the test verification cost is reduced.

Description

technical field [0001] The invention relates to the field of vehicle frames, in particular to a reinforced magnesium alloy passenger car frame and a design method thereof. Background technique [0002] Developing alternative energy sources, saving oil and improving fuel economy are the three basic ways for automobiles to save energy. For every 10% reduction in vehicle weight, fuel consumption can be reduced by 6%-8%, and emissions can be reduced by 4%. For passenger cars, the body accounts for 40%-60% of the vehicle's mass, and about 70% of the fuel consumption is spent on the body's mass. From the perspective of manufacturing costs, the body accounts for 15%-30% of the vehicle's cost . The materials used in the traditional body structure are mainly ordinary or high-strength low-carbon steel plates, but the energy density of the power battery pack of new energy vehicles is limited, and the general mass of steel car body-in-white is about 400-550kg, making steel passenger c...

AI Technical Summary

Problems solved by technology

The materials used in the traditional body structure are mainly ordinary or high-strength low-carbon steel plates, but the energy density of the power battery pack of new energy vehicles is limited, and the general mass of steel car body-in-white is about 400-550kg, making steel passenger cars in It is difficult to make breakthroughs in cruising range and battery efficiency, so lightweight vehicles are an important technical measure to improve cruising range. At the same time, the reduction in mass also brings about improved handling convenience, shortened braking distance, reduced vehicle vibration and reduced wear and tear. , improved component life and other benefits

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