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介绍多功能电测教学实验装置的基本结构和功用,简
述新增电测项目的实验和计算方法. 通过具体的电测实验,
证明该实验装置测试效果良好. 相似文献
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电测是实验力学的一个大的分支.十年来,在理论和应用技术研究方面都得到了很大的发展,这篇综述包括了四个方面:(1)电测理论研究的进展;(2)电测元件及应用技术的发展;(3)当前电测工程应用有发展前途的几个方面;(4)电测未来发展的展望.文中力图给出中国有关上述标题内容研究的概貌. 相似文献
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本文论述电测技术在经济建设中的地位和作用,阐述检测元件、电测微机系统和恶劣环境下电测技术的发展现状以及电测技术在新学科发展中的作用,指出了电测技术今后的发展前景。 相似文献
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?????? ???? ?????? 《力学与实践》1990,12(6):46-47
犁体受力电测,多是测量六分力,测试工作量大、不易普及、影响精度的因素多,不能提供整机性能设计所需数据.本文以5马力机耕船的犁体、犁架为例,经过受力分析,提出了犁体受力电测的“三分力测量法”;以测量力的要素为内容,经过试验验证,该法可行. 相似文献
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序号项目名称第2届亚洲流体力学大会国际ICF断裂力学会议第3届全国激波管学术会议4 l现场岩体观测及测试技术讨论会5 i地球动力学中岩石力学性质学术l讨论会理统计及概率分析在土工中的应用学习班全国生物固体力学讨论会电测实验技术讨论会动态光弹讨论会测、电测实验数据自动采集及处技术讨论会物理化学流体力学学习班气液两相流学习班电测培训班’呼吸系统动力学讨论班爆破安全技术讨论会复合材料力学专题讨论会.分叉、突变,?... 相似文献
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对《力学》中的物体自由度进行多方面分析,以深化教学、提高学生正
确分析物理问题的能力.使用实际教学分析的研究方法,在《力学》范围内讨论自由度与坐标、
自由与约束的关系并得以下结论:
(1) 同一物体的自由度随其所在的``空间'不同而不同, 不因坐标系的选取不同而
异, 在同类参考系中不因参考系的动静而有别;(2)自由度遵循叠加原理.
讨论了质点系的总自由度及相关计算问题,并指出研究《力学》中自由度的意义. 相似文献
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Tibor Javor 《Experimental Mechanics》1968,8(4):171-176
The present paper deals with development and design of new methods utilizing Wiedemann's effect for determination of state of strain in building structures. Wiedemann's effect and some features of torsional strain of magnetic field are the basis of new experimental method. Especially the point electromagnetic strain gages using the effect of pure torsion of electromagnetic field to enable universal examination. For strain-gage measurements, almost all physical quantities are used which can be related to the variation in length of the structures. From the electric strain measurements, the most commonly used methods are the measurements by resonance-wire strain gages or by electric-resistance strain gages. In this paper, electromagnetic strain gages are discussed using the Wiedemann effect, and the author describes some new measuring equipment and his own suggestions and methods based on an application of this effect. 相似文献
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It is well known that the problem on nonseparating potential flow of an incompressible fluid about an array of profiles reduces to an integral equation for a certain real function, determined on the contours of the profiles of the array. As such a function one can take, as was done, for instance, in [1–5], the relative velocity of the fluid on the profiles of the array. For arrays of profiles of arbitrary shape it is necessary to solve the corresponding integral equation numerically. In the particular examples of the calculation of aerodynamic arrays that are available [1–3] the numerical methods used were based on the approximate evaluation of contour integrals by rectangle formulas. As investigations showed, sizeable errors arose thereby in the approximate solution obtained, these being especially significant in the case of curved profiles of relatively small bulk. In the present paper a method for the numerical solution of the integral equation obtained in [5] is proposed. The method is based on the replacement of a profile of the array with an inscribed N polygon, the length of whose sides is of the order N–1 and whose internal angles are close to . Convergence with increasing N of the numerical solution to an exact solution of the integral equations at the reference points is demonstrated. Examples of the calculation are given.Novosibirsk. Translated from Izvestiya Akademii Nauk SSSR. Mekhanika Zhidkosti i Gaza, No. 2, pp. 105–112, March–April, 1972. 相似文献
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