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Á½Æª£º ¹ÌÌåÍÆ½ø¼ÁÓ¦Á¦ºÍÓ¦±äÓëʹÓÃÊÙÃü¹ØÏµ Relationship between stress-strain and service life of solid propellant ¡¾ÕªÒª¡¿ ÒÔEying¶¯Á¦Ñ§¹«Ê½Îª»ù´¡,½áºÏÍÆ½ø¼ÁÓ¦Á¦-Ó¦±ä¹ØÏµ¹«Ê½,½«Ó¦Á¦Ó¦±äÒòËØÒýÈ붯Á¦Ñ§¹«Ê½,ÍÆµ¼³öÁËÓ¦Á¦ºÍÓ¦±äÓ붯Á¦Ñ§¹«Ê½µÄ¹ØÏµ,²¢ÀûÓö¨ÔغÉÊÔÑéºÍ¶¨Ó¦±äÊÔÑéÑéÖ¤ÁËÉÏÊö¹ØÏµ¡£Ñо¿±íÃ÷ÔÚÍÆ½ø¼ÁµÄÀÏ»¯¹ý³ÌÖÐ,Ó¦Á¦ºÍÓ¦±äµÄ×÷ÓõÈЧÓÚ½µµÍÁËÍÆ½ø¼ÁÀÏ»¯µÄ±í¹Û»î»¯ÄÜ,´Ó¶ø¼ÓËÙÍÆ½ø¼ÁµÄÀÏ»¯¡£Ó¦Á¦¶Ô»î»¯ÄÜ×÷ÓÃϵÊý¦ÃµÄ¼ÆËã½á¹û±íÃ÷,Ó¦Á¦ºÍÓ¦±ä¶Ô¼ÓËÙÍÆ½ø¼ÁÀÏ»¯¡¢Ëõ¶ÌÍÆ½ø¼ÁÊÙÃüµÄ×÷ÓÃÊÇÏÔÖøµÄ¡£ÀûÓÃÍÆµ¼³öµÄÓ¦Á¦ºÍÓ¦±äÓ붯Á¦Ñ§¹«Ê½µÄ¹ØÏµ,¿ÉÒÔÊ¹ÍÆ½ø¼ÁÊÙÃüÔ¤²âµÄ½á¹û¸ü½Ó½üÓÚ·¢¶¯»úÖÐÍÆ½ø¼ÁµÄʵ¼ÊʹÓÃÊÙÃü¡£ ¡¾Abstract¡¿ Based on the Eying dynamics formula and stressstrain relation of solid propellant,the factors of stress and train were involved in the dynamics formula to obtain the relationships between them,and the relationships were validated by constant load test and constant strain test.The investigation shows the effects of stress and strain,which accelerate the aging of propellant.It is equivalent to the effect of reducing the aging apparent activation energy.The calculated result of coefficient ¦Ã indica... ¸ü¶à ¡¾ÎÄÏ׳ö´¦¡¿ ÍÆ½ø¼¼Êõ ,Journal of Propulsion Technology , ±à¼²¿ÓÊÏä ,2006Äê04ÆÚ ·½Å÷Ò©Ô¤²âÊÙÃüÓë·¢¶¯»úÍÆ½ø¼ÁÒ©Öùʵ¼ÊÊÙÃü²îÒìÑо¿ Investigation on the differences between predicted lifetime of propellant carton and actual lifetime of motor propellant grain ¡¾ÕªÒª¡¿ ´Ó¹Ì»¯Ìõ¼þ¡¢Öü´æÌõ¼þ¡¢Ó¦Á¦×´Ì¬Ìõ¼þºÍÔ¤²â·½·¨ 4¸ö·½Ãæ,·ÖÎöÁË·½Å÷Ò©Ô¤²âÊÙÃüÓë·¢¶¯»úÍÆ½ø¼ÁÒ©Öùʵ¼ÊÊÙÃü´æÔÚ²îÒìµÄÔÒò¡£Õë¶ÔÒÔÉÏÔÒòÌá³öÁËÓÃÐÞÕýÒò×Ó¡¢ÊÜÁ¦×´Ì¬Ä£ÄâÊÔÑéºÍÀÏ»¯¶¯Á¦Ñ§Ñо¿µÈ·½·¨À´¼õÉÙÕâÖÖ²îÒìµÄ¼¼Êõ;¾¶,ÒÔÌá¸ßÍÆ½ø¼ÁÊÙÃüÔ¤²âµÄ׼ȷÐÔ¡£ ¡¾Abstract¡¿ The differences between predicted lifetime of the propellant carton and actual lifetime of the motor propellant grain were analyzed from four aspects of curing condition, storage condition, stress condition and predicted method. By using correction factors, stress simulation test and ageing dynamics methods, the approaches to reduce the differences were put forward to improve accuracy of predicted lifetime. ¹ÌÌå»ð¼ý¼¼Êõ ,Journal of Solid Rocket Technology , ±à¼²¿ÓÊÏä ,2005Äê01ÆÚ |
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