单自由度咬合力测试系统开发与研究

Development and Research of Single Degree of Freedom Bite Force Test System

目前压力试验机测试食品材料物性多为半经验测定,施加在被测件上的压力件大多为金属块,其检测结果无法真实反映食品物性。本文针对食物力学性能检测,开发了一种用于食品检测的单自由度咬合力测试系统,设计了牙齿模型及固定加压装置模拟食品受到人咬合力的情况,开发了单自由度咬合力测试样机,并测试了几种食品力学特性,证实了开发的咬合力测试系统的可行性,获得了多种食物的应力应变曲线。

At present, the methods of food testing mainly include sensory evaluation methods and instrument measurement methods, while the traditional testing of food material properties by food texture apparatus is mostly semi-empirical, and the structure and movement form cannot simulate the real chewing movement, and the test results cannot truly reflect the food properties. In this paper, a bionic chewing robot for food detection was developed, which designed the occlusal structure and movement mode of human jaw chewing movement, and used Solidworks to design the mechanical structure and manufacture a prototype. The feasibility of the food occlusion experiment was tested;the detection results of the chewing robot were found to be more objective and accurate, and closer to the human sensory evaluation method.