method for calculating solar radiation amount of various components in space structure

The invention provides a method for calculating the solar radiation amount of various components in a space structure, which comprises the following steps of: establishing a calculation model, a modelcoordinate system and a light coordinate system according to each rod system component in the space structure; carrying out coordinate system transformation on each element in the calculation model;carrying out bounding box detection on plane projections of any two rod system components in the space structure in a light coordinate system; determining the shielding relation between any two rod system components; for any two rod system components with a shielding relationship, calculating to obtain a sunshine shadow interval formed by one rod system component on the surface of the other rod system component; calculating to obtain a direct solar radiation coefficient of any rod system component; according to the direct solar radiation coefficient of each rod system component, calculating toobtain the solar radiation