By using the boundary conditions of the statically indeterminate shaft with three fulcrums,the deflection curve square of the shaft is got;By utilizing the energy method to improve the calculation formula, the accurate first order critical speed of the statically indeterminate shaft with three fulcrums is obtained quickly.

Research on optimization of regulating kiln for obtaining equal intension of large-scale statically indeterminate rotary kiln;

Stability of statically indeterminate slender elastic bar subjected to temperature load;

Internal force computation of Statically indeterminate reinforced concrete intersecting beam;

the flexural rigidity optimal distribution of the equi-strength static-indeterminant beam under a concentrated force is studied in this paper.

By making use of the method of reduction by steps, an equi-strength static-indeterminant beam under distributed loads is studied.

The volume optimal design of an equi-strength two degree static-indeterminant beam subjected to a concentrated force and geometry constraint is studied by means of the stepped reduction method.

New method of sloving deflection curve for statically indeterminate beam;

Fast Solution of the Statically Indeterminate Beam with Constant Cross Section and Single-span With Fixed-ends;

This paper introduces horizontal shaft of vertical mill is changed into statically indeterminate beam supported by three points used of virtual constraint in the reforming process of RE1 vertical mill transmission device of 500mm hot strip mill production line in Laiwu iron and steel general works,thus the strength,rigidity and transmission stability of this mill are increased.