本文關(guān)鍵詞： 采煤機(jī) 無線監(jiān)測裝置 壓電自供電 懸臂梁 壓電發(fā)電　出處：《傳感技術(shù)學(xué)報(bào)》2017年06期 　論文類型：期刊論文

【摘要】：考慮到壓電自供電裝置中壓電振子的幾何參數(shù)直接影響其共振頻率,從而影響壓電自供電裝置的發(fā)電量,因此需要根據(jù)環(huán)境激勵(lì)頻率設(shè)定最佳的壓電振子的幾何參數(shù),對基于壓電自供電的采煤機(jī)狀態(tài)無線監(jiān)測裝置進(jìn)行研究,通過理論分析、仿真以及實(shí)驗(yàn)方法對對不同懸臂梁結(jié)構(gòu)在不同外界激勵(lì)作用下的發(fā)電量進(jìn)行研究。研究結(jié)果表明:懸臂梁自由端的質(zhì)量塊質(zhì)量以及懸臂梁長度越大,懸臂梁壓電結(jié)構(gòu)的固有頻率越低;隨著懸臂梁厚度的增加,懸臂梁壓電結(jié)構(gòu)的固有頻率逐漸增大。以此為依據(jù)對采煤機(jī)不同監(jiān)測位置的裝置選取最佳匹配的壓電結(jié)構(gòu)幾何參數(shù),并通過采煤機(jī)工作狀態(tài)監(jiān)測實(shí)驗(yàn)驗(yàn)證了本文研究的壓電自供電無線監(jiān)測裝置的可行性。
[Abstract]:Considering that the geometric parameters of piezoelectric oscillators directly affect the resonance frequency of piezoelectric self-supply devices, and thus affect the generation of electricity of piezoelectric self-supply devices, it is necessary to set the optimum geometric parameters of piezoelectric oscillators according to the ambient excitation frequency, The wireless monitoring device of shearer state based on piezoelectric self-power supply is studied, and the theoretical analysis is carried out. The power generation of different cantilever beam structures under different external excitations is studied by simulation and experimental methods. The results show that the mass mass and the length of cantilever beam at the free end of cantilever beam increase. The lower the natural frequency of cantilever piezoelectric structure is, the more the natural frequency of cantilever piezoelectric structure increases with the increase of cantilever beam thickness. The feasibility of the piezoelectric self-supply wireless monitoring device studied in this paper is verified by the working state monitoring experiment of the shearer.
【作者單位】： 遼寧工程技術(shù)大學(xué)機(jī)械工程學(xué)院;
【基金】：遼寧省教育廳創(chuàng)新團(tuán)隊(duì)項(xiàng)目(LTJ2011101,LT20100047)
【分類號(hào)】：TD632.1

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本文編號(hào)：1533162