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本文从理论上、试验验证上论证了地面的声反射及弹性垫过渡板影响噪声测量精度的二个技术问题。说明了不能忽视电机悬吊测试时地面声反射、弹性垫过渡板的面积等因素这二个方面对测量精度的影响。
In this paper, two technical problems of acoustic reflection on the ground and the influence of elastic pad transition plate on noise measurement accuracy are demonstrated theoretically and experimentally. It shows that the influence of the two aspects such as ground acoustic reflection and the area of the transition board of the elastic pad can not be neglected when measuring the motor suspension.