本文根据内燃机连杆承受分布质量的惯性载荷,提出一种光弹性试验用的大型离心机加载的原理和方法,建立一个模拟原连杆各横截面加速度的理论公式,独创地解决了按分布质量法测取连杆的应力问题。测试结果表明,这种精确的模拟方法,与光弹性的静载模拟相比,能使连杆对自身施加真实的惯性载荷,从而消除了误差较大的二质量代替系统的近似性。 Based on the inertial load of the connecting rod of the internal combustion engine under the distributed mass, a theory and method of large-scale centrifuge loading for photoelasticity test are proposed. A theoretical formula for simulating the cross-section acceleration of the original connecting rod is established. Method to measure connecting rod stress problem. The test results show that this accurate simulation method can make the connecting rod exert a real inertial load on itself compared with the photoelastic static load simulation, thus eliminating the approximation of the two masses with larger errors instead of the system.