A novel active deep-sea low-damage pressure-retaining organisms sampler

Capturing less damaged organisms samples is the basis for research on biological communities, living environments, life compositions, and tissue structures of livinin deep seabed. The hadal snailfish pressure-tolerant, cold-tolerant, easily damaged. This used a hydraulic suction macro-biological pressure-retaining sampler (HSMPS) to capture via pumping. As sucked into macro-organism pressure-maintaining sampler, it inevitably collides with pipe in diversion area (SPDA) inner wall cylinder (PCPA). Therefore, finite element analysis model real geometric shape was constructed by obtaining material mechanical properties different parts fish seabed through static compression tests, dynamic modeling response during process carried out. Moreover, changes stress, strain acceleration various tissues organs were determined, thereby providing technical support development marine sampling equipment.