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Force Optimization of such intensity beam

Reported monthly in 1999 t0 the scope of the scope of the beam parameters,[link widoczny dla zalogowanych], to modify the corresponding statement. After the program starts. Optimization results can be printed. 4, 2,[link widoczny dla zalogowanych], and so run the field strength of the results of optimal design beams running 4.1 the block diagram of equal strength calibration results to optimize the design for the inverted beam,[link widoczny dla zalogowanych], the design selected in the other end of the beam intensity calibration range of the maximum deflection permitted 120rrIm ≤ F ~ 200mm; beam length range = 100 - 420mm; beam thickness h = 1 ~ 10mm deflection, 20 4 Zhuqiong Chang et al: Force Optimization Qian intensity beam length, thickness limit of error was 0. O02mm, 0.02mm, 0. O01mm. Optimization analysis in this paper runs the results obtained: (1) When the beam length is 420mm, 7mm thickness, the strain of uncertainty to a minimum. The value of △ = 1.265007 × 10-6. (2) When the strain uncertainty of calibration value for the most hours, the beam length and beam thickness h f of the corresponding relationship shown in Table l. 14.2 In order to facilitate readers to decline to discuss more clearly the significance of this method. Rhyme in Table 1 below the data were analyzed and compared. According to Table 1, when the beam length is 420mm and thickness 5mm, respectively, and 7ram time. Their uncertainty △ 1 strain were 1.526885 × 10, and 1.265007 × 10-60 to 7mm thickness as a reference point, their relative error r is r = 126500710_20.7%. × a 6 .... Obviously,[link widoczny dla zalogowanych], the beam with a thickness of 7mm thickness 5ram far better than the beam. 4.3 Yuan real results. Intensity calibration of the above design conditions and optimization of beam analysis. We actually created a lO spring steel work in Taiwan length 420mm, 7mm thick beams of equal intensity calibration. YJ-25 with only a digital strain measurement, the test method shown in Figure 1, along the axis of the upper and lower surface of cloth, half-bridge conditions, according to the test (up to temperature compensation.) According to the test, the relative error r is r: ff <2% IETIeT is according to formula (1) to calculate the theoretical strain values; e is the actual measured results (strain). Measurement data also contains strain gages and strain themselves only uncertainty. Determined by linear regression of the measured nonlinearity of strain e W = 1.24%. 5 Conclusion (1) designed with equal strength of the calibration beam, measuring force of the strain intensity beam uncertainty can be minimized; (2) permit such deflection of the beam intensity to determine the scope, its length and thickness of the existence of a group the corresponding value, making the measurement beam generated by 318 of October 1999 strain of uncertainty to a minimum. References Tsung Dai. Tao Baoqi. Strain Measurement principles and techniques. Beijing: National Defence Industry Press, 1982:35 ~ 36 Railway Construction Academy of Railway Sciences, Institute of resistance strain pressure transducer. Beijing: China Railway Publishing House. 1979:36 - 38 Hwang Jang Yi. Yan Pujiang. Try {gifts mechanical engineering technology base. Beijing: China Machine Press. 1996:190 Ming Yuan Chuan electromagnetic measurements. Beijing: Mechanical Industry Press, 1980:241 ~ 242OptimizationDesignontheEqualStrengthBeamUsingforForceMeasurementZhuQiongcheng, XianJin, HuarigYihong (SouthChinaUniversity0fTechnology, Gm1h0I1510641) Abstract -------- Accordingtothetheoryoferrorpropngation, theoptimizationanalysesONtheequalstrengthbeamusingforforcemeasurementhavebeenfinishedbycomputer. Thebestdesignmethodandparametershavebe ∞ determined. Theoptimalresulthaeenprovedinthetest. Keywords: Equalstrengthbeam; Errorpropagation; Uncertainty; Statisticalanalyses

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