| Summary: | 碩士 === 國立成功大學 === 造船及船舶機械工程學系 === 90 === DQEM divides the structures waiting to be analyzed into limited elements, and then uses DQEM to define each element’s calculus or partial calculus relationship finding out the quantity of dispersion. Moreover, under the force-calculus-relating equation corresponding to the structure as a whole, retrieving the structure’s dispersion-equation system. DQEM is a highly accurate method of analysis. Therefore, when handling the computer, other than reducing the load of the computer itself, its accuracy also increases.
This thesis is to explore into depth the DQEM acknowledged by Dr. Chen Chung New, using its working method on the sheer force of the random compound beam’s static transformation problems, and to research on the difference of which to Euler-Bernouli Beam-another type of beam problem, due to the important limits of the ratio of the horizontal surface size and the beam’s length. So when the beam faces a horizontal force,the surface undertakes sheer force resulting in sheer-transformation, causing slight miscalculation in entire beam structure, leaving the miscalculation slight but undiscardible, therefore the reestablishment of equilibrium equations is one major step.
Random compound beams possessing static sheer-transformation is the core presentation of this thesis, by using Dr. Chen’s DQEM way of calculating no doubt gives us the proof of mathematical progress and increased accuracy.
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