农用拖拉机驾驶室安全性试验的计算机仿真

对农用拖拉机驾驶室安全性静载试验进行了包括材料非线性、几何非线性和状态非线性的计算机仿真,仿真过程完全按照OECD农业和林业拖拉机官方试验标准规则的规则4——《标准拖拉机防护装置强度试验方法（静载试验）》的要求,模拟拖拉机驾驶室静载试验的后推、后压、侧推、前压、前推的试验过程,检验拖拉机驾驶室所吸收的能量以及承受压力载荷后的变形和稳定性状况．通过计算机仿真,企业可以在设计阶段对驾驶室的安全性进行评价．发现问题可以及时改正,避免了在产品正式投产后由于驾驶室安全性达不到OECD的安全性要求而造成的重大损失．

A computer simulation to the safety test of agricultural tractor's cab

A computer simulation for safety experiments, including material nonlinear, geometrical nonlinear and state nonlinear, under static loads of agricultural tractor's cab is completed. The simulation process was completed according to the rule 4 "Strength test method for standard guarding unit of tractors (Static load test)" of OECD official standard for agricultural tractor experiment. The experimental process of back push, back press, side push, front press and front push in static loads test of tractor's cab was simulated, and the absorbed energy, the distortion and the stability state under the static loads of tractor's cab were verified. The safety of tractor's cab can be judged in the design stage by using the computer simulation. Some design mistakes can be corrected in time and the loss due to being unable to meet the safety standar of OECD can be avoided.