Home 实验室测试悬架系统噪声、振动与声振粗糙度（NVH）测试

悬架系统噪声、振动与声振粗糙度（NVH）测试

在设计流程中尽早优化噪音、振动与声振粗糙度特性。

什么是 NVH？

噪声、振动与声振粗糙度（NHV）是一个专门分析和缓解车辆噪声和振动属性的领域。这是车辆设计的一个关键方面，对性能和用户体验都有影响。NHV 测试涉及到将整车、部件或子组件置于不同频率的振动中，这有助于发现潜在的问题或麻烦。

NVH 问题往往是在汽车开发计划的后期才被发现，这可能会导致纠正措施代价高昂且效果不佳。我们的 ANVH 250 测试设备可在原型车面世之前，对悬架系统的 NVH 传递进行精确测量。

ANVH 250 可在开发流程的早期阶段测量由车辆悬架系统与路面相互作用引起的结构噪声的传递路径。ANVH 250 设计用于装载各种车辆副车架组件，并通过定制支架固定到车架上。该系统还可选装 SPMM Plus 的动臂车轮位置测量系统，用以测量车桥副车架的基本运动学和柔顺性（K&C）特征.

ANVH 250 通过向车桥主轴注入高频测试信号，模拟振动从轮胎接触片通过悬架系统向车身的结构性传递。可多达六个定制电磁执行器以 0-250Hz 的频率和 +/-0.01 至 +/-50mm 的位移实现精确控制的运动，而三轴负载传感器则测量传递到每个车身安装点的力。

ANVH 250 可对悬架系统施加正弦、随机输入和道路负载数据位移。可在垂直（Z）、纵向（X）或横向（Y）方向对轮毂施加位移。轮毂处的成对位移可以是同相、反相或单边。通过分析由此产生的力、加速度和位移，可以识别、隔离和优化结构共振源。

ANVH 250 是一款精密的轴级测试设备，可精确测量通过悬架系统传入车身的噪声、振动与声振粗糙度（NHV）。不断变化的汽车环境使得正确处理 NVH 比以往任何时候都更加重要。

ANVH 250 解决方案包括以下功能：

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