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ʽ � У � � �H.� � � � � � � � � � � Ӵ � Ӧ � � (MPa) � � U � � � � � � � � � ȣ � u = z2 / z1 > 1 � � T1� � � � С � � � � � � � � � ݵ � ת � � m (N.m) � � K � � � � � غ � ϵ � � � � � � � � B � � � � � ݿ � (mm) � � A � � � � � � � ľ � (mm) � � � �b� � � � � ݿ � ϵ � � � � [� �H.] � � � � � � � ֲ � � � � � � y Ӵ � Ӧ � � (MPa) � � � � � � The Ӧ � � u ʽ ʱ � � Ӧ ע � � � � � � � � � ݵ � ȷ � � � � 1. � � � � � � I U < 8 ʱ � ɲ � � � һ � � � � � ִ � � � � � � � � ܴ � � � � � 8-40 u Ϊ � � � ɷ � Ϊ � � � � � � � � � � � � � ܴ � � � � � u � � � � 40 � � � ɷ � Ϊ � � � � � � � � � � � � � ϴ � � � � � 2. � ݿ � b Ϊ � ˰ � װ � � � 㣬 � � ֤ � ֳ � ȫ � ݿ � � � � ϣ � һ � � С � � � ֳ ݿ � b1Ӧ � ȴ � � � ֳ ݿ � b2� � 5 -- 10 mm � � � � � � � � Ϊ � � ʽ � � awesome ݿ � Ϊ b2� � 3. � ݿ � ϵ � �� �b һ � � � ʽ � � � ִ � � � � � � �b= 0.2-1.4 4. � � � � Ӧ � � [� �H.] һ � Գ � � � � � � � ʱ � � � � � � � � � ֳ ݼ � Ľ Ӵ � Ӧ � � � � ȣ � � � � � � y Ӵ � Ӧ � � һ � � � Dz � � � ȵ ģ � � � Ӧ � � [� �H1] � � [� �The H2] � н � С � ߴ � � 빫 ʽ � � � 㡣 3. � ݸ � � � � � ƣ � � ǿ � ȼ � � � � ݸ � � � � � ƣ � � ǿ � ȼ � � � � � Ϊ � ˷ � ֹ � ݸ � � � � � ƣ � � � ۶ ϡ � � � ˣ � Ӧ � � ֤ � ݸ � � � � � � � � Ӧ � � � �F� � � � � ڳ � � ֲ � � ϵ � � � � � � � � � Ӧ � � [� �F] � � � �
4 � � � � Ʋ � � � Ͳ � � � ѡ � � � � � ʱ � � ֪ � � � � � ִ � � � � Ĺ � � ʡ � ת � ١ � � � � � � ȡ � � � � � � � � � ԭ � � � � � � � � � ԣ � � � � gamma ߴ � � � � � ľ � � � � � � � � � ƣ � � � � � � � � ɿ � � Ե ȡ � � � � � � � ݣ � ȷ � � � � � ִ � � � � � � � Ҫ � � � � � � � � � gamma ߴ 硢 � ṹ � ; � � ȵ ȣ � � � � � � Ƴ � � ֹ � � � ͼ � � � � Ʋ � � � � � � £� 1 � � ȷ � � � � � ֵ IJ � � Ϻ � � ȴ � � � � � ȷ � � � � � � С � � � ֵ � Ӳ � � ֵ � � � � � � Ӧ � � � � 2 � � � � ƣ � � ǿ � � � � � � ȷ � � � � � � � � � � � � � ݳ � � ִ � � � � � � � � ѡ � � ʽ � � 12-11 � � � � ʽ � � 12-14 � � � � � � � � � � � � � d1� � j � � 3 � � ȷ � � � � � � ȷ � � С � � � ֳ � � � ʱ � � � � � � Ӧ � � � � z117 � � � � һ � � ȡ z140 = 20 � � � � ת � ٽ ϸ � ʱ � � ȡ � � � н ϴ � � ֵ � � � � � � ʽ z2= iz1� � � � � z2� � � � Բ � � Ϊ � � � � � � 4 � � ģ � � � � � � � � � � � � ǿ � ȵ � � � � � � � ȡ � � С � � ģ � � � � 5 � � � ݿ � ϵ � � һ � � ȡfd=0.4 0.2 � � � � Ϊ � ˰ � װ � � � 㣬 һ � � С � � � ֳ ݿ � b1� ȴ � � � ֳ ݿ � b2(5 � � � � 10) mm � � 6 � � � � � � � � � У � ˳ � � � Ӵ � ƣ � � ǿ � Ȼ � ݸ � � � � � ƣ � � ǿ � � 7 � � � � � � � � ֵ ļ � � gamma ߴ � 8 � � ȷ � � � � � ֵ Ľ ṹ � ߴ � 9 � � ȷ � � � � � ־ � � Ȳ � � � � Ƴ � � ֹ � � � ͼ 5 � � � ṹ � � � � � � ֽ ṹ � � � � Ǻ � � � ѡ � � � � ֵ Ľ ṹ � � ʽ � � ȷ � � � � � ֵ � � � 챡 � � ַ � � � � � Ե � ȸ � � � � ֵ awesome ߴ rein � � � Ƴ � � ֵ � � � � � � � � ͼ � � 1) � � � � � �
2) ʵ � � ʽ � � � � � � � � � ֵ awesome ݶ � Բ ֱ � � da � � 200 mm ʱ � � � ɲ � � � ʵ � � ʽ � ṹ � � � � � ֽ ṹ � � ʽ � awesome � � ֳ � � o � � � � 졣 3) � � � � ʽ � � � � � � � � � ֵ awesome ݶ � Բ ֱ � � da = 200 � � 500 mm ʱ � � � ɲ � � ø � � � ʽ � ṹ � � � � � ֽ ṹ � awesome � � ֶ � � o � � � � 졣 � � � � � ֵ awesome ݶ � Բ ֱ � � da > 500 mm ʱ � � � ɲ � � � � ַ � ʽ � ṹ � � � � � ֽ ṹ � awesome � � ֳ � � � � � � ֻ � � � � � � � � 졣 6 � � � � � ִ � � � � � � � � � � ڳ � � ִ � � � ʮ � � � � Ҫ � � � � � � � � � Լ � С Ħ � � � � � � � � ĥ � � � � � � � � � � ȴ � � � � � ⡢ � � � � � � � � � � � � � Ƴ � � ֵ Ĺ � � � ״ � � � � � ӻ � � � � � ʧ Ч � � � ӳ � � � � ֵ � ʹ � � � � � � � � � � � � a � � ʽ : � � ʽ � � � ִ � � � � � � � ʽ � н � � � � � � � � � � � � � � ֣ � һ � � � � ݳ � � ֵ � Բ � � � ٶ � ȷ � � � � � � � � һ � ַ � ʽ � �
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