What principles should be followed in the stress distribution design of construction machinery casting?

The stress distribution design of construction machinery casting should follow necessary principles.

Stress should be distributed as evenly as possible throughout the construction casting machinery to avoid excessive local stress causing cracks or deformation. During design, stress concentration areas should be minimized, such as sharp corners or transition areas, and smooth transition curves and rounded corners should be used to reduce stress concentration. In addition, excessively large holes and sharp corners should be avoided, as these areas can easily become stress concentration locations, increasing the risk of cracks in the casting.

Actual working load conditions also need to be considered during design to ensure that the designed structures and materials can withstand the expected stress levels. Increasing the stressed area can disperse the stress and improve the strength and stability of the casting, which can be achieved by adding beams, ribs or thickened parts.

Structural design should be simple and effective, avoiding unnecessary mutations and complex shapes to reduce the possibility of stress concentration. Use computational tools such as finite element analysis to simulate and evaluate the stress distribution in the casting to optimize the design and reduce the risk of problems later on.

The stress distribution design of castings should comprehensively consider principles such as uniform distribution, reducing stress concentration, avoiding holes and cracks, considering working load, increasing the stress area, optimizing the structure, and using finite element analysis to ensure that the castings have good strength, stability and Durability.