| 摘要 |
FIELD: parachutes with canopies and/or shroud lines made of orientable polymer film material. SUBSTANCE: material of shroud lines has pattern of alternating stretched and nonstretched sections; nonstretched sections have form of strips (bands) extending in direction parallel to direction of impact forces the shroud lines are subjected to in development of parachute carrying the cargo in flight. Other aspect of innovation deals with parachute with canopy for holding the cargo to be lowered. Canopy is made of orientable polymer film material whose considerable portion has pattern of alternating sections of stretched and nonstretched material. Nonstretched sections have form of several strips divided by stretched sections. These strips extend in direction parallel to direction of impact forces the canopy is subjected to units opening when it carries cargo. EFFECT: enhanced reliability. |
