Study On The Influence Of The Size And Installation Position Of The Horn Bracket On Driving Vibration

As the automotive technology continues to improve continually, people are paying much more attention to the vehicle comfort. The major vehicle manufacturing and parts enterprises in the international automobile industry, ask more meticulous on the factors that affect the comfort of automobile, they not only study the comfort problems caused by the road and electric generator, how the vehicle parts affect the comfort is becoming the key study as well. The elements affect the vehicle comfort includes(Noise、Vibration、Harshness), but in the final analysis to solve the problem of comfort, is to solve the vibration. Aiming at the problem of steering wheel vibration caused by automobile horn working, this paper studies the size and instillation of car’s horn stent impact upon driving vibration. The study is composed of two aspects:One is to study the impact of the size of the car horn stent upon driving comfort. Two is to study the impact of the installation of car horn on driving comfort. This paper is mainly as follows:This paper sets up the horn stent vibration model by using the vibration isolation principle. And gets the corresponding theoretical formula using the mathematic derivation, analyzes and calculates the results, and gets to the conclusion of relationship between the size of the horn stent and the vibration at the point of response, to provide a theoretical basis for the subsequent test.According to the study of influence of incentive points upon the vibration characteristics of the structure, we get the not to be neglected impact of the installation position of the excitation point upon the vibration characteristics of the structure. The optimization of installation location could not only reduce the structural vibration level, but also suppress the resonance structure of the response characteristics. Using the NORTON equivalence principle, and by the finite element analysis software, study the vibration response when the loudspeaker bracket is installed in different positions on the car beam in front the car.According to the test conditions, design experimental scheme, set up the test platform, proceed the test upon the vibration response of the point caused by horn stents and installation location. Record the test data, and then analyze the test data, and get the analysis of the relationship between the horn bracket size and installation position for the effect of vibration response. The rationality of theoretical analysis is verified.Applying to living example, optimizes the current vibration problem of vehicles by using the result of this article. From the optimisms we can see, that by changing the length of the angle bracket, the steering wheel vibration problem could be significantly improved, which confirms the validity of the results.In this paper, from theoretical analysis and experimental verification we can conclude that the relationship between the size and instillation of the horn stent and the vibration at the point of response, which provides a important theoretical basis for solving the problem of driving vibration.