Abstract
Membrane-type air springs are widely used by automotive manufacturers due to their characteristics of light weight, low noise, and superior shock absorption performance. Since the cord layer plays a decisive role in the static and dynamic characteristics of membrane-type air springs, this paper establishes a numerical simulation model for membrane-type air springs. The influence of cord layers, cord diameter, cord angle, and cord strip spacing on the static and dynamic characteristics of the air spring is studied by orthogonal experiment methods. The results indicate that when the initial internal pressure is low, the load can be adjusted by modifying the cord angle, whereas adjusting the cord diameter is more effective under higher initial pressures. For lightly loaded, low-speed vehicles, priority should be given to adjusting the cord angle, diameter, and number of layers. For heavily loaded, low-speed vehicles, the cord angle and number of layers should be adjusted. For lightly loaded, high-speed vehicles, the number of layers, cord angle, and diameter should be adjusted. And for heavily loaded, high-speed vehicles, priority should be given to adjusting the cord angle.
