The phenomenon of torsional vibrations which arise in mechanical systems has become an important issue in mechanical design. Flexible couplings are widely used to tune dynamic proproperties of systems and suppress torsional vibrations. Elastic elements in flexible couplings have traditionally consisted of rubber or metal springs. Torsional vibrations cause self-heating of elastic elements. Temperature increase of elastic elements is often a cause of failure of flexible couplings. Our research is focused on the application of pneumatic elastic elements in flexible couplings. Their use in rotational systems brings about numerous design challenges. The properties of pneumatic elastic elements are affected by multiple factors such as excitation frequency and amplitude, the state of prestress, various types of deformations, etc. Heat generation and temperature increase due to the deformation of the pneumatic elastic element can have a significant effect on its properties. A mathematical model of the thermodynamic processes taking place in the pneumatic elastic elements is developed. The theoretical predictions are verified by experiments on a testing rig which has been designed and manufactured for this purpose. Comparing the mathematical model with experimental results, we describe the evolution of temperatures within the system: the temperature of the enlosed air, the inner surface, and outer surface of the pneumatic elastic element.

机械系统中出现的扭转振动现象已成为机械设计中的重要问题。挠性联轴器广泛用于调节系统的动态特性并抑制扭转振动。挠性联轴器中的弹性元件通常由橡胶或金属弹簧组成。扭转振动会导致弹性元件自发热。弹性元件的温度升高通常是挠性联轴器失效的原因。我们的研究集中在气动弹性元件在挠性联轴器中的应用。它们在旋转系统中的使用带来了许多设计挑战。气动弹性元件的性能受多种因素影响，例如激励频率和振幅，预应力状态，各种类型的变形等。由于气动弹性元件的变形而产生的热量和温度升高可能对其性能产生重大影响。建立了在气动弹性元件中发生的热力学过程的数学模型。理论上的预测通过为此目的而设计和制造的试验台上的实验进行了验证。将数学模型与实验结果进行比较，我们描述了系统内部温度的变化：封闭空气的温度，气动弹性元件的内表面和外表面。理论上的预测通过为此目的而设计和制造的试验台上的实验进行了验证。将数学模型与实验结果进行比较，我们描述了系统内部温度的变化：封闭空气的温度，气动弹性元件的内表面和外表面。理论上的预测通过为此目的而设计和制造的试验台上的实验进行了验证。将数学模型与实验结果进行比较，我们描述了系统内部温度的变化：封闭空气的温度，气动弹性元件的内表面和外表面。