基于多连杆结构的二维仿生咬合力测量装置

Two-dimensional bionic bite force measurement device based on multi-link structure

目的:研制一种用于咬合模拟试验的多连杆结构的咬合模拟装置。方法:分析了运用多连杆结构复刻人类口腔咬合轨迹的可行性,基于多连杆结构对咬合模拟装置进行机构设计,用Solidworks软件对装置的运动轨迹进行模拟仿真,并通过试验验证咬合模拟装置的有效性。结果:咬合模拟装置最大开口距离为50 mm,所选食材中胡萝卜咬合力最大为65.77 N,最小值为豆腐的2.05 N;咬合模拟试验与感官评价试验结果呈正相关,验证了咬合模拟装置的有效性。结论:咬合模拟装置可以有效地进行体外咬合模拟试验,其测力结果可以用于食品质地等研究。

Objective: An occlusion simulation device based on multi-link structure was developed for occlusion simulation test. Methods: The feasibility of using multi-link structure to reconstruct human oral occlusal trajectory was analyzed. Based on the multi-link structure, the mechanism of the occlusal simulation device was designed. Solidworks software was used to simulate the movement trajectory of the device, and the effectiveness of the occlusion simulation device was verified by experiments. Results: The maximum opening distance of the occlusion simulation device was 50 mm. The maximum bite force of carrot was 65.77 N, and the minimum was 2.05 N of tofu. The results of occlusion simulation test were positively correlated with those of sensory evaluation test, which verified the effectiveness of occlusion simulation device. Conclusion: The occlusion simulation device could effectively simulate the bite in vitro, and its force measurement results could be used to study food texture.