Research On The Parameter Identification And Performance Of Metal Screen Damper

In recent years,with the rapid development of mechanized operation,various industries have made strict demands on vibration and vibration reduction of mechanical devices.Especially for the poor,working environment is not clear,that will make the machine according to the ideal condition,running on the attenuation of the external environment for isolation or effective,dynamic part of the machine to work also can produce severe vibration affects normal work,also need to eliminate and suppress the vibration source.So it is particularly important to vibration,vibration isolation device,and for military armored vehicle engine design of powertrain mount system requires more stringent damping vibration isolation device,in order to ensure high precision operations under normal and stable level.In this paper,we provide a kind of all-metal vibration damping device,which can be used to reduce vibration,buffer and limit.Its anti-vibration structure not only compact structure,small volume,light weight,and bearing,bearing capacity is big,in a very bad condition and the change of environment severe cases can ensure its performance stable and reliable.Therefore,the metal screen vibration reduction technology becomes the best means to solve the vibration problem of various military products.For high power,high pressure of diesel engine mount vibration system for vibration analysis,considering it to work in the process of internal and external environment,comprehensive selection of wire diameter is 0.2 mm,304 stainless steel wire as raw material of wire mesh piece of elastic components,network block design of preparation process,its technological process includes: winding spiral coil,weaving and blank laid winding and stamping forming process,such as wire mesh piece of design and production;Through a certain type of vibration isolation of diesel engine mount system needs,according to its function,auxiliary effect of different,design in different size,the thickness of the wide band net block vibration reduction and buffer,at the same time will wire mesh shock absorber structure as a whole and its parts design and processing,in order to adapt to the diesel engine mount system in all aspects of the physical condition of vibration and shock resistant requirements,ease of installation and maintenance.Forming wire mesh shock absorber to the design to carry on the static and dynamic test,analysis of nonlinear stiffness and damping energy dissipation characteristics of wire mesh piece,and establish the mathematical model of shock absorber metal screen calculation of parameter identification and response to verify the rationality of the model.Using the stiffness and damping parameters of the model can accurately reflect the wire mesh nonlinear hysteretic curve,the change rule of shock absorber for the back of the mechanics performance test and provide the theory basis for reliability research.Through the static,dynamic characteristics and reliability test design bearing capacity of the wire mesh shock absorber,damping performance and resistance to vibration effect,from the perspective of the structure stress analysis of shock absorber structure for design and process defects and structure reliability and performance of the resulting problems;From the aspect of reliability failure analysis of shock absorber in wire mesh piece of component failure damage mechanism,explore the wire mesh piece withstand the anticipated vibration stress within the given time,whether the vibration isolation and damping dissipation function failure,the degree of attenuation is reasonable,the change rule of factor such as for shock absorber damping vibration isolation performance of the sustained,stable and provide experimental and theoretical basis.