Vibration Analysis And Vibration Reduction Design Of Pneumatic Nailer Based On ADAMS

Pneumatic nailer is a kind of handheld portable pneumatic tools,which is widely used because of its simple operation,easy to carry,high efficiency,environmental protection,etc.Pneumatic nailer is droved by compressed air to push the piston move front and turn,generating lots of vibration,resulting in endangering human health and affecting the quality of the product.Therefore,reducing the vibration of the pneumatic nailer is very necessary.In this paper,a simulation model is built according to the structure characteristics and working principle to analyze the vibration characteristics.And then an experimental platform is put forward to verify the simulation results.At last some vibration reduction methods for the pneumatic nailer is put forward based on the analysis results.The work in this paper are as follows:1.According to the structure and working principle of the pneumatic nailer,the vibration source and transmission path are analyzed.With the help of the high-speed photography system the motion characteristics of the pneumatic-nailer piston is tested,access to the movement of the piston displacement curve.2.According to the theory of multi-body dynamics,a virtual prototype model of the pneumatic nailer is built with HyperMesh and ADAMS.The piston displacement is regard as the input of the simulation system,and the time and frequency domain curves of the vibration acceleration of the handle are obtained.3.The hand-transmitted vibration of the pneumatic nailer is tested with vibration test instrument and evaluated according to corresponding standard.Comparing the results of simulation and experiment,the simulation analysis is verified.4.Based on the vibration isolation theory,two vibration reduction methods is put forward,reduction effect of which are analyzed.