Nowadays, customer considers that comfort in vehicle is almost as important as mechanical performance. NVH is of increasing concern to car manufacturers, & as a result, engineering have to develop efficient & quitter designs in a relatively short time. CAE methods are being used extensively as part of this 'time compression'. This enables the analyst to study quantitatively the effect of numerous design iterations, rather than building several prototypes at in the design process. Cradle is a separate structure from automotive chassis, which is used to support the power train and suspension system. With the application of cradle structure, the noise and vibration transmitted to passengers will be reduced and the stiffness of attachments will be increased. In other words, the riding comfort and the product reliability are improved. It is thus desired for a cradle to meet its attachment velocity targets when evaluated in conjunction with frequency. This paper will demonstrate FE modelling and frequency response analysis of a sample cradle.
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