【摘要】：目的研究高壓對(duì)中耳結(jié)構(gòu)造成的損傷。方法基于CT掃描建立中耳結(jié)構(gòu)有限元數(shù)值模型,對(duì)模型施加隨時(shí)間變化的壓力,分析鼓膜以及鐙骨足板的應(yīng)力、應(yīng)變和位移變化。結(jié)果獲得的計(jì)算結(jié)果與相關(guān)文獻(xiàn)中的試驗(yàn)數(shù)據(jù)吻合,驗(yàn)證了所建中耳模型的準(zhǔn)確性。高壓會(huì)對(duì)中耳造成損傷,隨著壓力的增加,損傷加重;快速加壓使得中耳損傷嚴(yán)重,對(duì)內(nèi)耳的影響較小;慢速加壓也能導(dǎo)致中耳損傷,但在中耳損傷前,內(nèi)耳會(huì)損傷。結(jié)論高壓容易導(dǎo)致人耳出現(xiàn)損傷,為避免聽力受到影響,在加壓過(guò)程中要控制好加壓速率。
[Abstract]:Objective to study the damage of middle ear structure caused by high pressure. Methods based on CT scanning, the finite element model of middle ear structure was established. The stress, strain and displacement of tympanic membrane and stapes pedal plate were analyzed by applying time-varying pressure on the model. Results the calculated results were in good agreement with the experimental data in the literature, and the accuracy of the middle ear model was verified. High pressure can cause damage to the middle ear, and with the increase of pressure, the damage will aggravate; rapid compression will cause serious damage to the middle ear and have little effect on the inner ear; slow compression can also cause the middle ear injury, but before the middle ear injury, the inner ear will be damaged. Conclusion High pressure can easily lead to ear damage. In order to avoid hearing loss, the pressure rate should be controlled in the process of compression.
【作者單位】： 上海大學(xué)土木系;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(11272200,11572186)
【分類號(hào)】：R764
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本文編號(hào)：2457805