基于余弦定理和Simulink的气弹簧建模与仿真研究

Modeling and Simulation of Gas Spring Based on Cosine Theorem and Simulink

中文关键词:  气弹簧  应急门  余弦定理  阻尼器  Simulink

英文关键词:gas spring  emergency door  cosine theorem  damper  Simulink

中文摘要:

      气弹簧作为一种先进的支撑机构，广泛应用在各种可调节角度和高度的民用飞机舱门中。根据项目研制的需要，从气弹簧的基本工作原理出发，运用余弦定理和MATLAB Simulink软件对气弹簧固定点及活动点的安装方式进行了科学的设计，并对驾驶室应急舱门气弹簧的运动状态进行了分析。研究了在不同阻尼孔直径下应急舱门的开启时间，计算过程中使用原始数学方程并建立了仿真模型，仿真过程中可以方便地模拟不同工作条件的变化，为产品的设计和校验提供理论依据。

英文摘要:

      As an advanced supporting mechanism,gas spring is widely used in various adjustable angles and heights of civil aircraft doors.According to the requirements of project development,starting from the basic working principle of gas spring,the installation mode of fixed point and movable point of gas spring is scientifically designed by using cosine theorem and MATLAB Simulink software,the motion state of gas spring of cab emergency cabin door is analyzed,and the opening time of emergency cabin door under different damping hole diameters is studied.The simulation model is established by using the original mathematical equation in the calculation process.In the simulation process,the changes of different working conditions can be easily simulated,which provides a theoretical basis for product design and verification.