空气弹簧具有变刚度特性，其固有振动频率要比钢板弹簧低得多，且不随汽车承载质量的变化而改变。

Air spring is characteristic of variable stiffness, its natural vibration frequency is much lower than that of leaf spring and will not change with load of vehicle.

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然后根据分析结果，以驾驶室不同载荷工况下的承载力为条件，为商用车驾驶室悬置选择合适的空气弹簧。

And then, choose the appropriate air spring for the vehicle cab mounting based on load at different load conditions and special conditions according to result.

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