ORGANIZATION : IcAUMS 2018
JOURNAL :
YEAR : 2018.06
VOL :
PAGE :
This paper deals with nonlinear analysis and design for electromagnetic linear actuator type vehicle horn. The vehicle
horn has a structure similar to that of the solenoid. Therefore, it is necessary to consider the saturation characteristics
of the iron core and the eddy current effect in the analysis.
Finite Element Analysis (FEA) is useful for analyzing complex structures. However, analytical method are more
appropriate in the initial design. Analytical method are short in computation time, good for understanding
characteristics of parameter changes, and useful for determining design direction.
Vehicle horn is a simple structure that generates force by using a magnetic field. When a current is applied to the
vehicle horn, a magnetic field is generated, then force and sound change according to the current waveform. The
device is an energy conversion device that converts electrical energy in to mechanical energy.
Electrical characteristics of a vehicle horn are determined by its resistance and inductance. Inductance is affected by
magnetic circuit, current magnitude, eddy current, and material properties. Mechanical characteristics of vehicle horn
are also affected by material properties, vehicle horn structure, natural frequency. Mechanical and electrical
parameters change during operation of the vehicle horn. Therefore, it is difficult to predict the vehicle horn
performance and design.
In this paper, firstly, electrical and mechanical system of the vehicle horn are mathematically modeled. Second is to
calculate the electrical and mechanical parameters using finite element analysis. Third, to predict the operating
characteristics of the vehicle horn, electrical/mechanical system equations were solved by reflecting the parameters
obtained from the finite element analysis. Finally, simulation results and experimental results were compared and
verified.