Vibration Reduction Performance Analysis And Structure Design Of A New Type Composite Damping Pipe Clamp

The pipeline system consists of pipes,pipe clamps and fluids,which is widely used in industries such as vehicles,ships,and buildings.In the work,the pipeline system will generate large vibration and noise under the external excitation and the impact of the filled fluid medium,which will aggravate the fatigue and wear of the equipment,shorten the service life,cause environmental noise pollution,and even produce pipeline cracks and fractures,resulting in fluid Give way.Therefore,the research on vibration reduction and noise reduction of pipeline system is especially important in some special fields such as military.This paper analyzes the dynamic characteristics of the pipeline system,reveals the principle of vibration damping and vibration isolation of pipe clamps to the pipeline system,and then designs new composite damping pipe clamps from the aspects of pipe clamp material and structure to reduce the vibration of the pipeline system.Firstly,the vibration characteristics of the pipeline system are theoretically analyzed,and the design ideas of the new composite damping pipe clamp are given.In the case of ensuring that the quality is almost constant,the support stiffness of the pipe clamp is appropriately reduced,and the vibration isolation effect of the pipe clamp is improved;at the same time,the damping value of the pipe clamp is appropriately increased in material selection and structural design,and the reduction of the pipe clamp in the resonance area is improved.Vibration effect,thereby reducing the vibration of the piping system.Then proposed a new type of damper clamp analysis design method.According to the forced non-resonance method,a test device was designed and manufactured to obtain the support stiffness and damping value of the pipe clamp.The material hardness of the vibration-damping element in the pipe clamp was tested and its elastic modulus and Poisson’s ratio were obtained.According to the test parameters,the three-dimensional model of the pipe clamp was established,and its dynamic mode characteristics such as mode shape were analyzed on the ANSYS finite element platform.It lays the foundation for the analysis and design of new pipe clips for combination of theory and experiment.Finally,according to the design method of a new type of damper clamp,a new type of damper clamp with a diameter of Φ30 is designed and manufactured.The softer rubber material is used to make the pipe clamp vibration-reducing element,and the contact method and structural parameters of the support element,the vibration-reducing element and the pipe are redesigned on the structure.The experimental comparison and ANSYS finite element simulation results show that the designed pipe diameter Φ30 pipe clamp has better damping effect.The research methods and design ideas presented in this paper will provide references for designing new types of damped pipe clamps.The structural parameters and material selection of the new pipe clamps given in this paper will lay the foundation for the further design of series damper pipe clamp products.