Author: John L. Sewall
Publisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 58
Book Description
An Experimental and Analytical Vibration Study of Thin Cylindrical Shells with and Without Longitudinal Stiffeners
Author: John L. Sewall
Publisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 58
Book Description
Publisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 58
Book Description
An Experimental and Analytical Vibration Study of Elliptical Cylindrical Shells
Author: John L. Sewall
Publisher:
ISBN:
Category : Frequencies of oscillating systems
Languages : en
Pages : 92
Book Description
This paper reports an experimental and analytical vibration study of free-free isotropic elliptical cylindrical shells of constant mass ranging in cross-sectional eccentricity from zero (circular shell) to 0.916. Experimental resonant frequencies, nodal patterns, and mode shapes were obtained by use of an air-jet shaker or an electrodynamic shaker with a noncontact inductance probe that could be moved over most of the shell surface. Experimental frequencies were in generally good agreement with analytical frequencies calculated by means of a Rayleigh-Ritz type of analysis featuring multiterm longitudinal and circumferential modal expansions. Frequencies for shells with eccentricity of 0.916 were as much as 40 percent below the corresponding circular-shell frequencies. As eccentricity increased, analytical and experimental mode shapes indicated considerable longitudinal and circumferential modal coupling.
Publisher:
ISBN:
Category : Frequencies of oscillating systems
Languages : en
Pages : 92
Book Description
This paper reports an experimental and analytical vibration study of free-free isotropic elliptical cylindrical shells of constant mass ranging in cross-sectional eccentricity from zero (circular shell) to 0.916. Experimental resonant frequencies, nodal patterns, and mode shapes were obtained by use of an air-jet shaker or an electrodynamic shaker with a noncontact inductance probe that could be moved over most of the shell surface. Experimental frequencies were in generally good agreement with analytical frequencies calculated by means of a Rayleigh-Ritz type of analysis featuring multiterm longitudinal and circumferential modal expansions. Frequencies for shells with eccentricity of 0.916 were as much as 40 percent below the corresponding circular-shell frequencies. As eccentricity increased, analytical and experimental mode shapes indicated considerable longitudinal and circumferential modal coupling.
An Experimental and Analytical Vibration Study of a Ring-stiffened Cylindrical Shell Structure with Various Support Conditions
Author: John L. Sewall
Publisher:
ISBN:
Category : Vibration
Languages : en
Pages : 62
Book Description
Publisher:
ISBN:
Category : Vibration
Languages : en
Pages : 62
Book Description
An Experimental and Analytical Vibration Study of Elliptical Cylindrical Shells
Author: John L. Sewall
Publisher:
ISBN:
Category :
Languages : en
Pages : 81
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 81
Book Description
Monthly Catalog of United States Government Publications
Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages :
Book Description
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages :
Book Description
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Monthly Catalog of United States Government Publications, Cumulative Index
Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1504
Book Description
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1504
Book Description
NASA Technical Note
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 64
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 64
Book Description
NASA Scientific and Technical Reports
Author: United States. National Aeronautics and Space Administration Scientific and Technical Information Division
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 472
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 472
Book Description
A Selected Listing of NASA Scientific and Technical Reports
Author: United States. National Aeronautics and Space Administration. Scientific and Technical Information Division
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 470
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 470
Book Description
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1280
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1280
Book Description