The Eulercurve of thin shell structural off, stability due to external water pressure is obtained and the correctness and reliability of the method are proved.
通过算例得出了结构外压失稳的欧拉曲线，验证了半解析有限柱壳条元法的正确性与合理性。
2
This paper investigates several equiyalent propositions of minimal curve surface by means of the euler equation of calculus of variations .