The determination of loads applied to a structure is often necessary in the design process. In some situations it is not feasible to insert a load cell in the system to measure these applied loads. In these cases, it would be expedient to utilize the structure itself as a load transducer. This can be accomplished by measuring strains at a number of locations on the structure. The precision with which the applied loads can be estimated from measured structural responses depends on the number of strain gages utilized and their placement on the structure. This paper presents a computational methodology which utilizes optimal expenmental design techniques to select the number, locations and angulai' orientations of the strain gages which will provide the most precise load estimates based on the generalized load vector. Selection is made from a candidate set created using a finite element analysis. This method is illustrated with an experimental application example.
|Original language||English (US)|
|Title of host publication||ASME 1992 International Computers in Engineering Conference|
|Subtitle of host publication||Volume 1 - Artificial Intelligence; Expert Systems; CAD/CAM/CAE; Computers in Fluid Mechanics/Thermal Systems|
|Publisher||American Society of Mechanical Engineers (ASME)|
|Number of pages||5|
|State||Published - 1992|
|Event||ASME 1992 International Computers in Engineering Conference and Exposition, CIE 1992 - San Francisco, United States|
Duration: Aug 2 1992 → Aug 6 1992
|Name||Proceedings of the ASME Design Engineering Technical Conference|
|Conference||ASME 1992 International Computers in Engineering Conference and Exposition, CIE 1992|
|Period||8/2/92 → 8/6/92|
Bibliographical noteFunding Information:
The work reported here was supported by the MTS System,s Corporation and the Deere & Company Technical Center. This support is gratefully acknowledged.
© 1992 American Society of Mechanical Engineers (ASME). All rights reserved.