{"id":17311,"date":"2026-08-29T07:52:19","date_gmt":"2026-08-29T07:52:19","guid":{"rendered":"https:\/\/www.dgcrane.com\/?post_type=posts&#038;p=17311"},"modified":"2026-08-29T07:52:22","modified_gmt":"2026-08-29T07:52:22","slug":"casting-crane-fatigue-life-analysis","status":"publish","type":"posts","link":"https:\/\/www.dgcrane.com\/ja\/posts\/casting-crane-fatigue-life-analysis\/","title":{"rendered":"\u92f3\u9020\u30af\u30ec\u30fc\u30f3\u306e\u75b2\u52b4\u5bff\u547d\uff1a\u4f7f\u7528\u7b49\u7d1a\u3068\u8010\u7528\u5e74\u6570\u5206\u6790"},"content":{"rendered":"<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><h2>\u76ee\u6b21<\/h2><nav><ul><li><a href=\"#overview-for-casting-crane\">\u92f3\u9020\u30af\u30ec\u30fc\u30f3\u306e\u6982\u8981<\/a><\/li><li><a href=\"#casting-crane-fatigue-life-and-service-life-calculation\">\u92f3\u9020\u30af\u30ec\u30fc\u30f3\u306e\u75b2\u52b4\u5bff\u547d\u3068\u8010\u7528\u5e74\u6570\u306e\u8a08\u7b97<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"overview-for-casting-crane\">\u92f3\u9020\u30af\u30ec\u30fc\u30f3\u306e\u6982\u8981<\/h2>\n\n\n\n<p>\u73fe\u4ee3\u306e\u88fd\u932c\u6280\u8853\u306f\u3001\u92f3\u9020\u30af\u30ec\u30fc\u30f3\u306e\u75b2\u52b4\u5bff\u547d\u3001\u6607\u964d\u901f\u5ea6\u3001\u8d70\u884c\u901f\u5ea6\u3001\u304a\u3088\u3073\u4f7f\u7528\u7b49\u7d1a\u306b\u5bfe\u3057\u3066\u3088\u308a\u9ad8\u3044\u8981\u6c42\u3092\u8ab2\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u4f1d\u52d5\u30b7\u30b9\u30c6\u30e0\u3001\u96fb\u6c17\u5236\u5fa1\u88c5\u7f6e\u3001\u30ae\u30a2\u30dc\u30c3\u30af\u30b9\u3001\u305d\u306e\u4ed6\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306b\u3064\u3044\u3066\u3082\u65b0\u305f\u306a\u8a2d\u8a08\u8981\u4ef6\u304c\u5c0e\u5165\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u92f3\u9020\u30af\u30ec\u30fc\u30f3\u306e\u5168\u4f53\u7684\u306a\u4f7f\u7528\u7b49\u7d1a\u304c\u4e0a\u304c\u308b\u306b\u3064\u308c\u3066\u3001\u4e3b\u8981\u69cb\u9020\u90e8\u6750\u306e\u75b2\u52b4\u7834\u58ca\u3092\u9632\u6b62\u3059\u308b\u3053\u3068\u304c\u3001\u5b89\u5168\u304b\u3064\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u904b\u8ee2\u306b\u3068\u3063\u3066\u4e0d\u53ef\u6b20\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u92f3\u9020\u30af\u30ec\u30fc\u30f3\u306f\u3001\u9244\u92fc\u304a\u3088\u3073\u975e\u9244\u91d1\u5c5e\u306e\u88fd\u9020\u306b\u304a\u3044\u3066\u3001\u6eb6\u878d\u91d1\u5c5e\u3084\u30b9\u30e9\u30b0\u3092\u53d6\u308a\u6271\u3046\u88c5\u7f6e\u3067\u3059\u3002\u4ee3\u8868\u7684\u306a\u7528\u9014\u3068\u3057\u3066\u306f\u3001\u6eb6\u9291\u3092\u8ee2\u7089\u306b\u88c5\u5165\u3057\u305f\u308a\u3001\u53d6\u934b\u3092\u9023\u7d9a\u92f3\u9020\u30bf\u30ec\u30c3\u30c8\u306b\u79fb\u9001\u3057\u305f\u308a\u3001\u53d6\u934b\u3092\u7cbe\u932c\u7089\u306b\u79fb\u9001\u3057\u305f\u308a\u3059\u308b\u3053\u3068\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u4f5c\u696d\u306f\u8ca0\u8377\u304c\u9ad8\u3044\u305f\u3081\u3001\u92f3\u9020\u30af\u30ec\u30fc\u30f3\u306e\u7dcf\u5408\u7684\u306a\u8010\u8377\u91cd\u7b49\u7d1a\u306f\u4e00\u822c\u7684\u306bA6\uff5eA8\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1068\" height=\"712\" src=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/2026\/08\/metallurgical-casting-crane_english.png\" alt=\"\" class=\"wp-image-17318\"><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"casting-crane-fatigue-life-and-service-life-calculation\">\u92f3\u9020\u30af\u30ec\u30fc\u30f3\u306e\u75b2\u52b4\u5bff\u547d\u3068\u8010\u7528\u5e74\u6570\u306e\u8a08\u7b97<\/h2>\n\n\n\n<p>\u92f3\u9020\u30af\u30ec\u30fc\u30f3\u306e\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u904b\u8ee2\u306f\u3001\u8a2d\u8a08\u3001\u88fd\u9020\u54c1\u8cea\u3001\u8a2d\u7f6e\u7cbe\u5ea6\u3001\u904b\u8ee2\u6761\u4ef6\u3001\u4f5c\u696d\u624b\u9806\u3001\u304a\u3088\u3073\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306a\u3069\u3001\u3044\u304f\u3064\u304b\u306e\u8981\u56e0\u306b\u4f9d\u5b58\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4e2d\u56fd\u306e\u30af\u30ec\u30fc\u30f3\u8a2d\u8a08\u57fa\u6e96GB\/T 3811-2008\u3067\u306f\u3001\u30af\u30ec\u30fc\u30f3\u306e\u904b\u8ee2\u7b49\u7d1a\u306f\u3001\u8377\u91cd\u30b9\u30da\u30af\u30c8\u30eb\u7b49\u7d1a\u3068\u4f7f\u7528\u7b49\u7d1a\u306b\u3088\u3063\u3066\u6c7a\u5b9a\u3055\u308c\u307e\u3059\u3002\u8377\u91cd\u30b9\u30da\u30af\u30c8\u30eb\u7b49\u7d1a\u306f\u3001\u540a\u308a\u4e0a\u3052\u8377\u91cd\u3068\u5b9a\u683c\u540a\u308a\u4e0a\u3052\u80fd\u529b\u306e\u95a2\u4fc2\u3092\u793a\u3057\u307e\u3059\u3002\u4f7f\u7528\u7b49\u7d1a\u306f\u3001\u8a66\u904b\u8ee2\u304b\u3089\u5ec3\u68c4\u307e\u3067\u306e\u7dcf\u904b\u8ee2\u30b5\u30a4\u30af\u30eb\u6570\u3092\u793a\u3057\u307e\u3059\u3002\u88681\u306f\u30af\u30ec\u30fc\u30f3\u306e\u8377\u91cd\u30b9\u30da\u30af\u30c8\u30eb\u7b49\u7d1a\u3068\u8377\u91cd\u30b9\u30da\u30af\u30c8\u30eb\u4fc2\u6570Kp\u3092\u793a\u3057\u3001\u88682\u306f\u30af\u30ec\u30fc\u30f3\u306e\u4f7f\u7528\u7b49\u7d1a\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1536\" height=\"1024\" src=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/2026\/08\/crane-load-spectrum-classes_english.png\" alt=\"\" class=\"wp-image-17319\"><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1536\" height=\"1024\" src=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/2026\/08\/crane-utilization-classes_english.png\" alt=\"\" class=\"wp-image-17320\"><\/figure>\n\n\n\n<p>\u30af\u30ec\u30fc\u30f3\u306e\u904b\u8ee2\u7b49\u7d1a\u306fA1\u304b\u3089A8\u307e\u3067\u3042\u308a\u307e\u3059\u3002\u88683\u306f\u3001\u904b\u8ee2\u7b49\u7d1a\u3068\u8377\u91cd\u30b9\u30da\u30af\u30c8\u30eb\u7b49\u7d1a\u304a\u3088\u3073\u5229\u7528\u7b49\u7d1a\u3068\u306e\u95a2\u4fc2\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1536\" height=\"1024\" src=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/2026\/08\/crane-duty-class_english.png\" alt=\"\" class=\"wp-image-17321\"><\/figure>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u8868\u306f\u3001\u30af\u30ec\u30fc\u30f3\u306e\u8010\u7528\u5e74\u6570\u304c\u7dcf\u904b\u8ee2\u30b5\u30a4\u30af\u30eb\u6570\u3067\u8868\u3055\u308c\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u4f7f\u7528\u30af\u30e9\u30b9\u3068\u3001\u5178\u578b\u7684\u306a\u540a\u308a\u4e0a\u3052\u8377\u91cd\u3068\u5b9a\u683c\u540a\u308a\u4e0a\u3052\u80fd\u529b\u306e\u6bd4\u7387\u306b\u4f9d\u5b58\u3057\u307e\u3059\u3002\u92f3\u9020\u30af\u30ec\u30fc\u30f3\u306f\u901a\u5e38\u3001\u5b9a\u683c\u5bb9\u91cf\u307e\u305f\u306f\u305d\u308c\u306b\u8fd1\u3044\u8377\u91cd\u3092\u6271\u3046\u305f\u3081\u3001\u305d\u306e\u8377\u91cd\u30b9\u30da\u30af\u30c8\u30eb\u30af\u30e9\u30b9\u306f\u4e00\u822c\u7684\u306bQ4\u3001\u4f7f\u7528\u30af\u30e9\u30b9\u306f\u4e00\u822c\u7684\u306bA7\u3067\u3059\u3002Q4\u3068A7\u306e\u5834\u5408\u3001\u88683\u306f\u4f7f\u7528\u30af\u30e9\u30b9U5\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u88682\u306f\u3001\u7dcf\u904b\u8ee2\u30b5\u30a4\u30af\u30eb\u7bc4\u56f2\u304c2.5 \u00d7 10\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<sup>5<\/sup> \uff1cCT \u2264 5 \u00d7 10<sup>5<\/sup>.<\/p>\n\n\n\n<p>\u6642\u6298\u307e\u305f\u306f\u983b\u7e41\u306b\u904e\u8ca0\u8377\u304c\u304b\u304b\u308b\u3068\u3001\u7dcf\u904b\u8ee2\u30b5\u30a4\u30af\u30eb\u6570\u304c\u5927\u5e45\u306b\u6e1b\u5c11\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4f8b\u3048\u3070\u3001\u8ee2\u7089\u88c5\u5165\u306b\u4f7f\u7528\u3055\u308c\u308bA7\u578b\u92f3\u9020\u30af\u30ec\u30fc\u30f3\u306f\u30011\u65e524\u6642\u9593\u3001\u5e74\u9593330\u65e5\u9593\u9023\u7d9a\u7a3c\u50cd\u3057\u307e\u3059\u3002\u6b8b\u308a\u306e35\u65e5\u9593\u306f\u3001\u5e74\u6b21\u70b9\u691c\u3001\u7089\u306e\u691c\u67fb\u3001\u5b9a\u671f\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3001\u304a\u3088\u3073\u81e8\u6642\u306e\u4fee\u7406\u306b\u5145\u3066\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u898f\u683c\u3067\u306f\u3001\u9069\u7528\u53ef\u80fd\u306a\u6700\u9ad8\u30e9\u30f3\u30af\u306f\u3001\u30af\u30ec\u30fc\u30f3\u5168\u4f53\u3067\u306fU6\u3001Q3\u3001A7\uff08\u4e3b\u5dfb\u304d\u4e0a\u3052\u6a5f\u69cb\u3067\u306fT6\u3001L3\u3001M7\uff09\u3001\u30af\u30ec\u30fc\u30f3\u5168\u4f53\u3067\u306fU5\u3001Q4\u3001A7\uff08\u4e3b\u5dfb\u304d\u4e0a\u3052\u6a5f\u69cb\u3067\u306fT5\u3001L4\u3001M7\uff09\u306e2\u3064\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u5bfe\u5fdc\u3059\u308b\u7dcf\u7a3c\u50cd\u30b5\u30a4\u30af\u30eb\u6570\u306f\u3001U6\u3067\u306f50\u4e07\uff5e100\u4e07\u3001U5\u3067\u306f25\u4e07\uff5e50\u4e07\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>1\u6642\u9593\u3042\u305f\u308a6\u56de\u306e\u52d5\u4f5c\u30b5\u30a4\u30af\u30eb\u3067\u3001\u8a2d\u8a08\u5bff\u547d\u306f12\u5e74\u3068\u63a8\u5b9a\u3055\u308c\u308b\u3002<\/p>\n\n\n\n<p>Cr = 6 \u00d7 24 \u00d7 330 \u00d7 12 = 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