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Copyright of Shipin Kexue/ Food Science is the property of Food Science Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Real-time transmission tower stress calculation is an important part of the transmission line safety evaluation, hence, a finite element analysis method is proposed to solve the problem because that the stress analysis and calculation of ANSYS cant be applied to practical safety evaluation system. A system is also developed for the calculation of realtime transmission tower stress. Hybrid truss beam model is adopted to model the power transmission tower. The tower structure is discretized, node displacement array is taken as unknown quantity, it together with the overall stiffness matrix and load array compose a matrix equation, adding 1 makes the matrix nonsingular, and Gaussian elimination method is used to solve the matrix equation. By the relationship of stress and displacement in elastic mechanics, each node stress can be obtained, and finally the tower stress distribution can be obtained. Using the developed system to simulate the Eiffel Tower accident, the results shows that the system has high accuracy, and can be used for real-time transmission tower stress calculation. [ABSTRACT FROM AUTHOR]