The invention relates to a method for automatic control over laser shock peening. The method comprises the following steps that a part analysis model is built in mechanical analysis software according to the machining requirement, and residual stress distribution is obtained; residual stress distribution is guided into CAE analysis software, and a machining motion track acting on the surface of a part is automatically generated; meanwhile, technological parameters corresponding to a laser shock wave pressure set value are selected by an industrial personal computer according to the relation between laser shock wave pressure and laser peening technological parameters; the machining motion track and the technological parameters are guided into the mechanical analysis software for simulation so as to obtain a strain value after machining simulation; and if the strain value is within the set range, the technological parameters are sent to a laser device through the industrial personal computer, the machining motion track is sent to a robot, and automatic laser machining is achieved. By means of the method, laser shock peening of an integral blade disc can be achieved, quantitative precise control over residual stress is achieved, the service life of the integral blade disc is effectively prolonged, and the foreign matter damage resisting capacity of the integral blade disc is effectively improved.

System and method for automatic control over laser shock peening

Research on the stamping residual stress of steel wheel disc and its effect on the fatigue life of wheel

In order to study the fatigue, 13° impact and 90° impact performance of wheel and propose a wheel structure design and optimization method based on these performance, taking a 16×612J type wheel as...

Multi-objective optimization design of wheel based on the performance of 13° and 90° impact tests

Radial impact test of aluminium wheels—Numerical simulation and experimental validation

Simulation of the scenario of the biaxial wheel fatigue test

Simulation of biaxial wheel test and fatigue life estimation considering the influence of tire and wheel camber

Optimized design method for variable-thickness rims of automobile wheels

The simulation of the radial fatigue test of a wheel has been a necessary tool to improve the design of the wheel and calculate its fatigue life. The simulation model, including the strong nonlinearity of the tire structure and material, may produce accurate results, but often leads to a divergence in calculation. Thus, a simplified simulation model in which the complicated tire model is replaced with a tire-wheel contact pressure model is used extensively in the industry. In this paper, a simplified tire–rim interface pressure model of a wheel under a radial load is established, and the pressure of the wheel under different radial loads is tested. The tire–rim contact behavior affected by the radial load is studied and analyzed according to the test result, and the tire–rim interface pressure extracted from the test result is used to evaluate the simplified pressure model and the traditional cosine function model. The results show that the proposed model may provide a more accurate prediction of the wheel radial fatigue life than the traditional cosine function model.

Jiegong Wang

Papers

Simulation of biaxial wheel test and fatigue life estimation considering the influence of tire and wheel camber

Optimized design method for variable-thickness rims of automobile wheels

Tire–rim interface pressure of a commercial vehicle wheel under radial loads: theory and experiment