The Research And Application Of Dynamic Electromagnetic Force Coupling Transfer Based On Converse Model Build By The Network

The vibrations of the bodywork (no matter the whole vibration or the part vibration) will cause the passengers unwell, influence gauges to work normally, cause alternating stress and accelerate fatigue damage in structure. Therefore, the fatigue life examination is one of works that usually used in the automotive industry.The mechanism of electromagnetc-mechanic resonance coupling is used on the equipment about examinating the fatigue life on the automotive limbs.It adopts dynamic electromagnetic force as non-contacted load, and makes the structure examinated work on it's natural frequency , attaining "resonance", making the flap and stress enlarge several times,working high efficiently and saving energy.The main contents of this text research is as follows:This text introduces the factors that influence structure's natural frequency of the outfit under load, makes sure the direction of design. It also analyses the outfit under load designed on ANSYS to compute structure's natural frequency and confirm the design satisfies the experiments'requests. at the meantime. This text still designs a electromagnetic exciter driver that satisfies the experiments'request and temperature rising parameters.Based on the anticipant electromagnetic force signal, this text anti-develops the control signal finally. While studying the relationship between magnetic induction and magnetic field strength, considering the influence of the hysteresis, it establishes the H-B model using of the nerve network in the Matlab to describe the corresponding relationship between H and B. It exerts that the nerve network approaches function well to handle complicated non-linear problems.