{"id":43520,"date":"2024-06-25T10:41:55","date_gmt":"2024-06-25T01:41:55","guid":{"rendered":"https:\/\/www.tokaibane.com\/en\/?post_type=cau-hoi&#038;p=43520"},"modified":"2025-01-23T14:16:15","modified_gmt":"2025-01-23T05:16:15","slug":"moi-quan-he-giua-hang-so-lo-xo-va-do-vong-cua-lo-xo-nen","status":"publish","type":"cau-hoi","link":"https:\/\/www.tokaibane.com\/en\/vn\/cau-hoi\/43520","title":{"rendered":"M\u1ed1i quan h\u1ec7 gi\u1eefa h\u1eb1ng s\u1ed1 l\u00f2 xo v\u00e0 \u0111\u1ed9 v\u00f5ng c\u1ee7a l\u00f2 xo n\u00e9n"},"content":{"rendered":"\n<p>Gi\u1ea3 s\u1eed l\u00f2 xo n\u00e9n c\u00f3 h\u1eb1ng s\u1ed1 l\u00f2 xo l\u00e0 5N\/mm khi t\u00e1c d\u1ee5ng l\u1ef1c 100N. S\u1ee9c ch\u1ecbu t\u1ea3i t\u1ed1i \u0111a c\u1ee7a l\u00f2 xo l\u00e0 150N. Khi l\u00f2 xo n\u00e0y \u0111\u01b0\u1ee3c l\u1eafp r\u00e1p v\u00e0 c\u1ea5u tr\u00fac b\u1ecb n\u00e9n \u1edf m\u1ed9t b\u00ean, v\u1ec1 m\u1eb7t l\u00fd thuy\u1ebft, t\u00f4i ngh\u0129 r\u1eb1ng s\u1ebd c\u1ea7n m\u1ed9t l\u1ef1c 101N v\u00e0 102N khi l\u00f2 xo b\u1ecb n\u00e9n t\u1edbi 0,2mm v\u00e0 0,4mm, nh\u01b0ng k\u1ebft qu\u1ea3 kh\u00f4ng nh\u01b0 t\u00f4i mong \u0111\u1ee3i khi \u0111o b\u1eb1ng m\u1ed9t d\u1ee5ng c\u1ee5 \u0111o c\u00f3 th\u1ec3 \u0111o t\u1ea3i tr\u1ecdng v\u00e0 \u0111\u1ed9 d\u1ecbch chuy\u1ec3n. Khi \u0111o, k\u1ebft qu\u1ea3 \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb b\u1eb1ng \u0111\u1ed3 th\u1ecb c\u00f3 \u0111\u1ed9 d\u1ed1c l\u1edbn t\u1eeb \u0111i\u1ec3m b\u1eaft \u0111\u1ea7u l\u00ean \u0111\u1ebfn kho\u1ea3ng 0,4mm, sau \u0111\u00f3 l\u00e0 ti\u1ec7m c\u1eadn v\u1edbi h\u1eb1ng s\u1ed1 l\u00f2 xo. H\u01a1n n\u1eefa, l\u1ef1c l\u00e0 70N v\u00e0 90N khi l\u00f2 xo b\u1ecb \u0111\u1ea9y l\u1ea7n l\u01b0\u1ee3t l\u00e0 0,2mm v\u00e0 0,4mm. V\u00ec c\u00e1c b\u1ed9 ph\u1eadn \u1edf c\u1ea3 hai b\u00ean c\u1ee7a c\u1ea5u tr\u00fac \u0111\u1ec1u \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng kim lo\u1ea1i v\u00e0 c\u00f3 thanh d\u1eabn, ch\u00fang t\u00f4i tin r\u1eb1ng s\u1ebd kh\u00f4ng c\u00f3 l\u1ef1c b\u1ecb m\u1ea5t do \u0111\u1ed9 l\u1ec7ch c\u1ee7a c\u1ea5u tr\u00fac. Th\u1eadt kh\u00f3 hi\u1ec3u t\u1ea1i sao t\u1ea3i \u0111\u1ed9t nhi\u00ean b\u1eaft \u0111\u1ea7u \u1edf 100N, h\u01a1n n\u1eefa, t\u00f4i kh\u00f4ng hi\u1ec3u s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa l\u00fd thuy\u1ebft v\u00e0 th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<hr class=\"wp-block-separator is-style-default\"\/>\n\n\n\n<h2>Tr\u1ea3 l\u1eddi<\/h2>\n\n\n\n<p>C\u00e1c y\u1ebfu t\u1ed1 c\u00f3 th\u1ec3 khi\u1ebfn h\u1eb1ng s\u1ed1 l\u00f2 xo kh\u00e1c v\u1edbi k\u1ebft qu\u1ea3 t\u00ednh to\u00e1n bao g\u1ed3m &#8220;% \u0111\u1ed9 l\u1ec7ch&#8221; v\u00e0 &#8220;\u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a c\u1ea3m bi\u1ebfn t\u1ea3i tr\u1ecdng.&#8221;<br>\u00b7% \u0111\u1ed9 v\u00f5ng: Ti\u00eau chu\u1ea9n C\u00f4ng nghi\u1ec7p Nh\u1eadt B\u1ea3n JIS B 2704 cho l\u00f2 xo n\u00e9n n\u00eau r\u00f5: &#8220;H\u1eb1ng s\u1ed1 l\u00f2 xo \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng ch\u00eanh l\u1ec7ch t\u1ea3i tr\u1ecdng (l\u1ef1c) v\u00e0 ch\u00eanh l\u1ec7ch \u0111\u1ed9 v\u00f5ng t\u1ea1i hai \u0111i\u1ec3m n\u1eb1m trong kho\u1ea3ng t\u1eeb 30 \u0111\u1ebfn 70% t\u1ed5ng \u0111\u1ed9 v\u00f5ng.&#8221; N\u00f3i chung, h\u1eb1ng s\u1ed1 l\u00f2 xo \u0111\u01b0\u1ee3c cho l\u00e0 \u1ed5n \u0111\u1ecbnh khi l\u01b0\u1ee3ng bi\u1ebfn d\u1ea1ng n\u1eb1m trong kho\u1ea3ng t\u1eeb 30 \u0111\u1ebfn 70% t\u1ed5ng l\u01b0\u1ee3ng bi\u1ebfn d\u1ea1ng (l\u01b0\u1ee3ng bi\u1ebfn d\u1ea1ng khi l\u00f2 xo b\u1ecb n\u00e9n t\u1ed1i \u0111a). N\u1ebfu n\u1eb1m ngo\u00e0i ph\u1ea1m vi n\u00e0y, gi\u00e1 tr\u1ecb t\u00ednh to\u00e1n c\u00f3 th\u1ec3 kh\u00f4ng kh\u1edbp.<br>\u30fb\u0110\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a c\u1ea3m bi\u1ebfn t\u1ea3i tr\u1ecdng: \u0110\u1ec3 \u0111o ch\u00ednh x\u00e1c \u0111\u1ed9 ch\u00ednh x\u00e1c 1\/10, b\u1ea1n c\u1ea7n m\u1ed9t d\u1ee5ng c\u1ee5 \u0111o c\u00f3 th\u1ec3 \u0111o \u0111\u1ed9 ch\u00ednh x\u00e1c 1\/100, v\u00e0 \u0111\u1ec3 \u0111o \u0111\u1ed9 ch\u00ednh x\u00e1c 1\/100, b\u1ea1n c\u1ea7n m\u1ed9t d\u1ee5ng c\u1ee5 \u0111o c\u00f3 th\u1ec3 \u0111o \u0111\u1ed9 ch\u00ednh x\u00e1c 1\/1000.Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, kh\u00f4ng c\u00f3 v\u1ea5n \u0111\u1ec1 g\u00ec n\u1ebfu thi\u1ebft b\u1ecb \u0111o c\u00f3 th\u1ec3 \u0111o \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c 1\/1000, nh\u01b0ng n\u1ebfu kh\u00f4ng, c\u00f3 th\u1ec3 kh\u00f4ng \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a c\u00e1c gi\u00e1 tr\u1ecb \u0111o \u0111\u01b0\u1ee3c \u0111\u1ebfn m\u1ee9c 1\/100.<\/p>\n\n\n\n<hr class=\"wp-block-separator is-style-default\"\/>\n\n\n\n<h2>Tr\u1ea3 l\u1eddi<\/h2>\n\n\n\n<p>Gi\u1ea3 s\u1eed sau l\u00f2 xo \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t v\u1edbi \u0111\u1ed9 v\u00f5ng b\u1eb1ng 10% \u0111\u1ed9 v\u00f5ng t\u1ed1i \u0111a v\u1edbi 1 v\u1eadt n\u1eb7ng 100 kg ph\u00eda tr\u00ean, l\u00fac n\u00e0y l\u00f2 xo s\u1ebd d\u1eebng chuy\u1ec3n \u0111\u1ed9ng. N\u1ebfu l\u00f2 xo \u0111\u01b0\u1ee3c l\u1eafp v\u1edbi \u0111\u1ed9 v\u00f5ng b\u1eb1ng 80% \u0111\u1ed9 v\u00f5ng t\u1ed1i \u0111a v\u00e0 t\u1ea3i tr\u1ecdng gi\u1ea3m 20kg, li\u1ec7u l\u00f2 xo c\u00f3 quay v\u1ec1 tr\u1ea1ng th\u00e1i v\u1edbi \u0111\u1ed9 v\u00f5ng 10% kh\u00f4ng?<\/p>\n\n\n\n<hr class=\"wp-block-separator is-style-default\"\/>\n\n\n\n<h2>Tr\u1ea3 l\u1eddi<\/h2>\n\n\n\n<p>Gi\u1ea3 s\u1eed m\u1ed9t l\u00f2 xo n\u00e9n \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t \u1edf \u0111i\u1ec3m c\u00f3 \u0111\u1ed9 v\u00f5ng b\u1eb1ng 10% t\u1ed5ng \u0111\u1ed9 v\u00f5ng. Khi \u0111\u1eb7t t\u1ea3i tr\u1ecdng 100kg l\u00ean l\u00f2 xo, n\u00f3 s\u1ebd b\u1ecb n\u00e9n t\u1edbi 80% t\u1ed5ng \u0111\u1ed9 v\u00f5ng.<\/p>\n\n\n\n<p>Khi t\u1ea3i tr\u1ecdng gi\u1ea3m \u0111i 20kg, ta c\u00f3 100kg &#8211; 20kg = 80kg. Do \u0111\u00f3, do \u0111\u1eb7t m\u1ed9t t\u1ea3i tr\u1ecdng 80 kg l\u00ean l\u00f2 xo, \u0111\u1ed9 v\u00f5ng c\u1ee7a l\u00f2 xo s\u1ebd \u200b\u200b\u0111\u01b0\u1ee3c h\u1ed3i ph\u1ee5c m\u1ed9t ch\u00fat t\u1eeb m\u1ee9c 80% t\u1ed5ng \u0111\u1ed9 v\u00f5ng. \u0110\u1ec3 \u0111\u01b0a n\u00f3 tr\u1edf l\u1ea1i v\u1ecb tr\u00ed l\u1eafp \u0111\u1eb7t ban \u0111\u1ea7u (10% t\u1ed5ng \u0111\u1ed9 v\u00f5ng), v\u1eabn c\u1ea7n ph\u1ea3i lo\u1ea1i b\u1ecf t\u1ea3i tr\u1ecdng 100kg.<\/p>\n\n\n\n<hr class=\"wp-block-separator is-style-default\"\/>\n\n\n\n<h2>Tr\u1ea3 l\u1eddi<\/h2>\n\n\n\n<p>N\u1ebfu h\u1eb1ng s\u1ed1 l\u00f2 xo gi\u1ea3m m\u1ed9t n\u1eeda so v\u1edbi ban \u0111\u1ea7u th\u00ec t\u1ea3i tr\u1ecdng s\u1ebd gi\u1ea3m \u0111i m\u1ed9t n\u1eeda v\u1edbi c\u00f9ng m\u1ed9t \u0111\u1ed9 v\u00f5ng, v\u1eady c\u00f3 \u0111\u00fang khi cho r\u1eb1ng kh\u1ea3 n\u0103ng l\u00f2 xo bi\u1ebfn d\u1ea1ng v\u0129nh vi\u1ec5n s\u1ebd \u00edt \u0111i v\u00ec 1 ph\u00eda c\u1ee7a l\u00f2 xo s\u1ebd kh\u00f4ng b\u1ecb n\u00e9n?<\/p>\n\n\n\n<hr class=\"wp-block-separator is-style-default\"\/>\n\n\n\n<h2>Tr\u1ea3 l\u1eddi<\/h2>\n\n\n\n<p>N\u1ebfu h\u1eb1ng s\u1ed1 l\u00f2 xo gi\u1ea3m \u0111i m\u1ed9t n\u1eeda v\u00e0 \u0111\u1ed9 v\u00f5ng b\u1eb1ng nhau th\u00ec l\u1ef1c \u0111\u1ea9y s\u1ebd y\u1ebfu h\u01a1n v\u00e0 t\u1ea3i tr\u1ecdng \u0111\u1eb7t l\u00ean l\u00f2 xo gi\u1ea3m \u0111i khi\u1ebfn n\u00f3 \u00edt b\u1ecb bi\u1ebfn d\u1ea1ng h\u01a1n.B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 ki\u1ec3m tra c\u00f4ng th\u1ee9c t\u00ednh h\u1eb1ng s\u1ed1 l\u00f2 xo t\u1ea1i \u0111\u00e2y!<\/p>\n\n\n\n<p><blockquote class=\"wp-embedded-content\" data-secret=\"lpFctUZUPu\"><a href=\"https:\/\/www.tokaibane.com\/en\/spring-design\/compression-springs-formulas\">Compression Springs: Calculation Formulas<\/a><\/blockquote><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;Compression Springs: Calculation Formulas&#8221; &#8212; Tokai Spring industries, Inc.\" src=\"https:\/\/www.tokaibane.com\/en\/spring-design\/compression-springs-formulas\/embed#?secret=1Y5hgG3wt5#?secret=lpFctUZUPu\" data-secret=\"lpFctUZUPu\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n\n\n\n<hr class=\"wp-block-separator is-style-default\"\/>\n\n\n\n<h2>Tr\u1ea3 l\u1eddi<\/h2>\n\n\n\n<p>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 t\u00ednh \u0111\u1ed9 v\u00f5ng ngang c\u1ee7a l\u00f2 xo?<\/p>\n\n\n\n<hr class=\"wp-block-separator is-style-default\"\/>\n\n\n\n<h2>Tr\u1ea3 l\u1eddi<\/h2>\n\n\n\n<p>N\u1ebfu \u0111\u01b0\u1eddng t\u00e2m c\u1ee7a v\u00f2ng d\u00e2y \u0111\u01b0\u1ee3c \u0111\u1ecbnh h\u01b0\u1edbng theo ph\u01b0\u01a1ng th\u1eb3ng \u0111\u1ee9ng v\u00e0 h\u01b0\u1edbng vu\u00f4ng g\u00f3c v\u1edbi n\u00f3 l\u00e0 n\u1eb1m ngang th\u00ec h\u1eb1ng s\u1ed1 l\u00f2 xo theo ph\u01b0\u01a1ng th\u1eb3ng \u0111\u1ee9ng \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi bi\u1ec3u th\u1ee9c (1). Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, h\u1eb1ng s\u1ed1 l\u00f2 xo theo ph\u01b0\u01a1ng n\u1eb1m ngang \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u0111\u1ed9 c\u1ee9ng ngang v\u00e0 c\u00f3 th\u1ec3 thu \u0111\u01b0\u1ee3c b\u1eb1ng bi\u1ec3u th\u1ee9c (2).<\/p>\n\n\n\n<p>(1) H\u1eb1ng s\u1ed1 l\u00f2 xo theo ph\u01b0\u01a1ng th\u1eb3ng \u0111\u1ee9ng k = Gd^4\/8ND^3<\/p>\n\n\n\n<p>(2) H\u1eb1ng s\u1ed1 l\u00f2 xo theo ph\u01b0\u01a1ng ngang ky \/ kx = C { 0,294 ( hs \/ D )2 + 0,382 }<\/p>\n\n\n\n<p>ky=bi\u1ec3u th\u1ee9c (1)=P\/\u03b4s<\/p>\n\n\n\n<p>kx: \u0111\u1ed9 c\u1ee9ng ngang<\/p>\n\n\n\n<p>hs: chi\u1ec1u cao l\u00f2 xo khi ch\u1ecbu t\u1ea3i th\u1eb3ng \u0111\u1ee9ng<\/p>\n\n\n\n<p>P=h0\u2013\u03b4s<\/p>\n\n\n\n<p>C: h\u1ec7 s\u1ed1 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi t\u1ef7 l\u1ec7 chi\u1ec1u cao\/\u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i v\u00e0 (\u0111\u1ed9 l\u1ec7ch d\u1ecdc \/ chi\u1ec1u cao t\u1ef1 do)<br>Trong m\u1ecdi tr\u01b0\u1eddng h\u1ee3p, n\u1ebfu y\u00eau c\u1ea7u kx v\u00e0 ky th\u00ec ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng c\u00e1ch chia \u0111\u1ed9 v\u00f5ng c\u1ee7a l\u00f2 xo do t\u1ea3i tr\u1ecdng xi\u00ean theo h\u01b0\u1edbng t\u00f9y \u00fd th\u00e0nh c\u00e1c th\u00e0nh ph\u1ea7n th\u1eb3ng \u0111\u1ee9ng v\u00e0 n\u1eb1m ngang.<\/p>\n\n\n\n<hr class=\"wp-block-separator is-style-default\"\/>\n\n\n\n<h2>Tr\u1ea3 l\u1eddi<\/h2>\n\n\n\n<p>Xin ch\u00e0o,<\/p>\n\n\n\n<p>C\u00f3 bi\u1ec3u th\u1ee9c t\u00ednh h\u1ec7 s\u1ed1 C trong bi\u1ec3u th\u1ee9c \u201dky \/ kx = C { 0,294 ( hs \/ D )2 + 0,382 }\u201d kh\u00f4ng? (ho\u1eb7c) quy t\u1eafc ng\u00f3n tay c\u00e1i (ho\u1eb7c) c\u00e1c gi\u00e1 tr\u1ecb gi\u1ea3 \u0111\u1ecbnh th\u00f4ng th\u01b0\u1eddng cho h\u1ec7 s\u1ed1 C d\u1ef1a tr\u00ean v\u1eadt li\u1ec7u l\u00f2 xo?<\/p>\n\n\n\n<hr class=\"wp-block-separator is-style-default\"\/>\n\n\n\n<h2>Tr\u1ea3 l\u1eddi<\/h2>\n\n\n\n<p>C\u1ea3m \u01a1n c\u00e2u h\u1ecfi c\u1ee7a b\u1ea1n! Vui l\u00f2ng t\u00ecm bi\u1ec3u \u0111\u1ed3 \u0111\u00ednh k\u00e8m \u0111\u1ec3 b\u1ea1n tham kh\u1ea3o. N\u1ebfu b\u1ea1n c\u00f3 b\u1ea5t k\u1ef3 c\u00e2u h\u1ecfi n\u00e0o kh\u00e1c, xin vui l\u00f2ng cho ch\u00fang t\u00f4i bi\u1ebft.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.tokaibane.com\/en\/cms\/wp-content\/uploads\/2021\/06\/66c19942ab4ba346fdb64ccc04cde373.jpg\">https:\/\/www.tokaibane.com\/en\/cms\/wp-content\/uploads\/2021\/06\/66c19942ab4ba346fdb64ccc04cde373.jpg<\/a><\/p>\n","protected":false},"featured_media":0,"template":"","acf":[],"_links":{"self":[{"href":"https:\/\/www.tokaibane.com\/en\/wp-json\/wp\/v2\/cau-hoi\/43520"}],"collection":[{"href":"https:\/\/www.tokaibane.com\/en\/wp-json\/wp\/v2\/cau-hoi"}],"about":[{"href":"https:\/\/www.tokaibane.com\/en\/wp-json\/wp\/v2\/types\/cau-hoi"}],"wp:attachment":[{"href":"https:\/\/www.tokaibane.com\/en\/wp-json\/wp\/v2\/media?parent=43520"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}