运用弹塑性理论对导弹壳体板(简称弹壳板)在对称式三轴辊卷板机(简称三辊机)中弯曲时的受力及变形作了系统的研究,提出一组可按照板厚、板材料弹性模量、板材料屈服极限及成形后弹壳板应具有的曲率等参数确定中心辊进给量及施加力的理论计算公式. Using the theory of elasto-plasticity, the force and deformation of the missile shell plate (referred to as the shell plate) during the bending in the symmetrical three-axis roller coiling machine (referred to as the three-roller roller) are systematically studied. , The elastic modulus of the plate material, the yield limit of the plate material and the curvature of the shell plate after forming, the theoretical formula for calculating the feed amount and the applied force of the center roller is established.