STABILITY OF A SLENDER ELASTIC BODY TRAVELING IN A TUBE

The stability of a slender, axisymmetric, elastic body, supported by two simple spring systems, travelling in a cylindrical tube filled with air is studied. Slender-body theory is used to evaluate the aerodymanic force acting on the body. Under this aerodynamic loading the elastic body is assumed to obey the equation of motion of a simple beam. A method of solution of the equation of motion is presented for a slender ogive cylinder. It is found that at a given travelling speed instability occurs when the length of the body exceeds a critical value. This critical length is found to be approximately proportional to the inverse of the travelling speed, and to the square-root of the difference of the characteristic cross-sectional areas of the tube and of the body to the third power. (Author)

  • Corporate Authors:

    Oceanics, Incorporated

    Plainview, NY  USA 
  • Authors:
    • Wang, D P
  • Publication Date: 1969-2

Media Info

  • Pagination: 54 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00039147
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: TR-68-54
  • Contract Numbers: DOT-FR-9-0020
  • Files: TRIS
  • Created Date: Nov 24 1973 12:00AM