free piston

Application of free piston Stirling engine in space solar power system

斯特林发动机在空间太阳能发电中的应用

This experiment technology are adapt for high enthalpy free piston shock wave wind tunnel and makes a foundation for carrying out high enthalpy real gas effect experiment.

发展了一套适合于高焓自由活塞激波风洞使用的抗污染性强、耐冲刷的测热、测压试验技术，为开展高焓真实气体试验研究打下良好的基础。

Analysing the Variation of Free Piston Stroke and Frequency under Variant Working Conditions

变工况下自由活塞行程、频率变化分析

A free piston thin wall sampler was used to obtain undisturbed specimens of natural sedimentary silty soils from ground surface to the depth of 70 m. A series of tests were performed on both the undisturbed and the remolded/ reconstituted samples.

采用自由活塞薄壁取土器自地表至深度70m取得不扰动原状粉质土样，通过一系列物理力学试验，对比分析了天然沉积粉质土与天然沉积粘性土的异同。