严重伤害
发表于 2025-3-23 10:22:04
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偏狂症
发表于 2025-3-23 16:20:15
Some Aspects of the Theory of Waves and Vibrationsheory in some detail because the basic ideas of the two theories are the same and vectorial vibration theory is sufficiently complex and cumbersome to obscure the basic ideas if one is not already aware of them. On the other hand, scalar vibration theory is sufficiently simple and straightforward so
善于
发表于 2025-3-23 20:21:53
Thickness Vibrations of Plateslate may (or may not) be completely coated with electrodes which are infinitesimally thin. Since the electrodes are infinitesimally thin, all possible mechanical effects may be ignored. When the electrodes are there we shall assume that an alternating potential difference is applied to them.
愤怒历史
发表于 2025-3-23 23:56:56
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hauteur
发表于 2025-3-24 03:52:31
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纠缠,缠绕
发表于 2025-3-24 08:11:32
Two-Dimensional Piezoelectric Plate Equationsonsider the volumetric portion of the variational principle (6.20) and ignore the surface portion. If we were to include the surface portion, we would obtain no additional terms in the resulting plate equations. The volumetric portion of the variational principle is ..
是比赛
发表于 2025-3-24 13:03:09
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泄露
发表于 2025-3-24 18:18:50
Some Electrical Circuit Considerationsminology we have found the admittance of the crystal [(.), Chapter 3, Section 18)]. However, before we can introduce these terms properly we must discuss a sign convention associated with the terminology. The sign convention we will employ is contained in the diagram in Fig. 24, which indicates that
Ovulation
发表于 2025-3-24 21:45:35
Application to a Monolithic Structurees and the others do not. The 1 section is driven by the application of an alternating voltage to the surface electrodes and the energy is detected in the 3 section by a passive detecting circuit of admittance Y. As usual, the dimension out of the paper will be ignored. The solution actually require
custody
发表于 2025-3-25 00:33:56
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