Research On Autombile Floor With Foam Aluminum Laminated Structure

Force of the parts of automobile is caused not only by other parts,but also by external environment when the automobile is moving.So good static and dynamic characteristics and high specific stiffness is required.It is confirmed by previous research that aluminum foam has so much good performances such as lightness,high specific stiffness,high specific strength,vibration damping.So it is feasible to put aluminum foam and its composite material into components of automobile so that the mechanical properties of automobile could be improved.Type based on the floor,the floor is arranged after the type of flat,design low carbon steel platform floor filled with aluminum foam.According to the structural characteristics of aluminum foam itself,in case of meeting the design requirements,there is a great improvement in reducing body vibration and decreasing vehicle interior noise compared with low carbon steel.Using ANSYS finite element software to analyze the static and dynamic characteristics of the automobile platform floor.Confirm that the natural frequency of aminated structure improves while the maximum amplitude decreases.It is confirmed that aluminum foam. can weaken the vibration of the system.Using acoustic software Virtual.Lab to analyze the acoustic field of indoor automobile with common material platform floor and aluminum foam structure platform floor.The results shows that automobile platform floor with aluminum foam aminated structure is superior to common platform floor in weaken the vibration of automobile,reducing deformation and decreasing noise.This study provides a new way to control automobile body vibration and noise and widen the application range of aluminum foam at the same time.