Cap Design of modular high pressure tanks

纤维增强塑料(FRP)是制造高压容器的理想材料。正交各向异性材料的性能允许匹配双向应力条件。这使得压力容器的轻量化设计成为可能，由于显著减轻了重量和FRP优异的耐腐蚀性，压力容器已经被广泛使用。在汽车行业严格的回收法规、热塑性预浸料的普及以及对压力容器功能的需求的推动下，高压容器的新设计将被开发出来。因此，新的设计将弥补玻璃钢压力容器设计水平的不足。本研究项目的目的是对模块化高压容器进行设计研究。新的玻璃钢设计的目的是提供可回收的压力容器，进一步简化与周围结构的连接。压力容器内部的可访问性将通过设计的模块化实现。气缸和端盖将分开制造，从而增加容器的功能。由于内部的通路，这一概念可用于设计活塞蓄能器、液压蓄能器和金属氢化物储氢。为了实现这些优点，必须对模块化压力容器端盖的不同概念和相应的连接技术进行研究。

Fiber-reinforced plastics (frp) are ideally suited as material for high-pressure vessels. The orthotropic material properties allow to match the biaxial stress condition. This enables a lightweight design for pressure vessels, which is already widely used due to the significant weight reduction and the excellent resistance of frp to corrosion.Driven by strict recycling regulations in the automotive sector, the spreading of thermoplastic pre-pregs and the desire for an increase of functionality of pressure vessels, a new design for high-pressure containers will be developed. The new design thereby will compensate the disadvantages of the state of the art design of frp pressure vessels.The objective of this research project is a design study for modular high-pressure vessels. The aim of a new frp-design is to provide recyclable pressure vessels that furthermore simplify the connection to surrounding structures. The accessibility of the interior of the pressure vessel will be achieved through the modularity of the design. Cylinder and end closure will be manufactured separately, and thereby the functionality of the vessel will be increased. Due to the access of the interior the concept can be used to design piston accumulators, hydraulic accumulators and hydrogen storage with metal hydrides. In order to achieve these advantages, a study of different concepts for end closures for modular pressure vessels and the corresponding joining techniques has to be carried out.