Dynamics modeling for crane linkage mechanism in heavy vehicle

. The dynamics modeling has an important role in optimizing design and decreasing cost, hence it has been built for searching for the intrinsic relationship among its parameters in crane linkage mechanism of heavy vehicle in light of this paper. The speed and displacement may change with sine and cosine shape periodically for crane linkage mechanism of vehicle in light of this paper modeling. The maximum speed may indicate ±2km/s and minimum one may provide ±180m/s. Meantime the maximum acceleration will indicate ±1Mm/s 2 , ±270k/m 2 , ±44km/s 2 &±5.8km/s 2 with the rotational angle to be 80º and 170º correspondingly in this paper. The former two has R=70mm &L=150mm and low rotational speed with n=500r/m and 1,000r/m while the latter two may have R=80mm &L=160mm with n=2,000r/m and 3,000r/m. They may enhance with increasing crane radius R and linkage length L respectively for the mechanism according to this modeling. The biggest acceleration effectiveness will be controlled with rotational speed. The excellent results are acquired in this paper in light of dynamics modeling.