3results about How to "Consistent mechanical properties" patented technology

The present invention discloses an intelligent self-powered active suspension with multi-level adjustable height in the automotive field and a working method thereof. The rod ends of the cylinder rod extending into the oil cylinder are all guide ends composed of a guide, a screw and a nut. There is no seal between the outer wall of the guide and the inner wall of the oil cylinder. The screw and the cylinder rod are provided with oil guide grooves that penetrate the rodless cavity and the rod cavity, and there is no need to consider the sealing problem. A non-closed working oil circuit is adopted, and a suspension height adjustment device comprises a first and a second height adjustment oil and gas cylinders with unequal volumes. The first height adjustment oil and gas cylinder, a third solenoid valve, a high-pressure gas storage tank, a first non-return valve, an electric air compressor unit and a low-pressure gas storage tank are connected in series in sequence, and energy can be pre-stored in advance. Four-speed height control is achieved by two parallel-connected height adjustment oil and gas cylinders with different volumes, so that the vehicle body can be at a low height when the vehicle is driving at high speed, at a normal height when the vehicle body is in urban conditions, and at a height when the vehicle body is driving on bumpy roads. The vehicle body can also be rescued from a pit when the wheel is stuck in it.

The present application relates to the technical field of mechanical data simulation, and specifically provides a cushion air column bag simulation analysis method, system, terminal and storage medium, comprising: obtaining nominal strain generated by a sampling area of an air column bag in an inflation process, and saving the nominal strain and the sampling area as standard data; obtaining a stress-strain curve of air column bag material in a stretching process, and a corresponding deformation variable when the nominal strain in the standard data is reached, and saving the deformation variable as a material deformation variable of the sampling area; constructing an air column bag finite element grid model from the stress-strain curve and the material deformation variable of the sampling area, and performing simulation analysis based on the air column bag finite element grid model. The present application can improve the simulation analysis precision of the cushion air column bag, quickly identify defects in the air column bag design scheme, shorten the research and development cycle, and avoid quality problems after delivery.