针对工业废热回收问题，设计了一种基于形状记忆合金（SMA）弹簧驱动的压电旋转俘能器。利用 SMA 吸收热能驱动压电振子振动转化为电能，从而实现废热回收利用。构建机械结构模型并阐述其工作原理，建立系统发电模型并进行仿真分析，探究压电振子参数对发电性能的影响，最终制作实验样机进行测试。试验结果表明，在水温 100 ℃下，当压电振子长 60 mm，输出电压最大为 6. 005 V；当压电振子厚度比为 0. 4 时，发电性能最好，输出电压为 6. 174 V；当压电旋转俘能器啮合距离为 3 mm、发电单元组数设置为 4 组时，达到了输出功率为 0. 174 mW 的发电效果，验证了基于 SMA 驱动的压电旋转俘能器实现热能转化电能的可行性。

To address the problem of industrial waste heat recovery， this study designed a piezoelectric rotary energy capturer based on a shape memory alloy （SMA） spring drive， which used the SMA to absorb thermal energy and convert the piezoelectric oscillator vibration into electrical energy to realize waste heat recovery and utilization. A mechanical structure model was constructed， its working principle was explained， a system power generation model was established for simulation and analysis， the influence of the piezoelectric vibrator parameters on the power generation performance was explored， and an experimental prototype was fabricated for testing. The experimental results demonstrated that under 100 ℃ water temperature conditions， when the piezoelectric vibrator length reached 60 mm， the maximum output voltage measured 6. 005 V and optimal power generation performance with output voltage of 6. 174 V was achieved at a thickness ratio of 0. 4 for the piezoelectric vibrator. Furthermore， when the piezoelectric rotary captor engagement distance was 3 mm and the number of power generation unit groups was set to 4， a power generation effect with an output power of 0. 174 mW could be achieved， thereby verifying the feasibility of realizing the conversion of thermal energy into electrical energy based on the piezoelectric rotary captor driven by SMA.

TN384；TN710；TN86

吉林省教育厅科学研究项目重点项目（JJKH20251096KJ）