璇锋暀锛?/p>
ANSYS
妯℃�佸垎鏋愬悗锛屽浣曞緱鍒板悇闃舵ā鎬佺殑妯℃�侀樆灏兼瘮
*get
entity=mode
,item1=damp
璇锋暀
1
妤硷紝鍛戒护娴?/p>
*GET,
Par,
Entity,
ENTNUM,
Item1,
IT1NUM,
Item2,
IT2NUM
涓叾浠栧嚑椤瑰垎鍒浣曡缃紝濡?/p>
Par,ENTNUM,
绛夛紝鍙﹀杈撳叆鍛戒护娴佸浣曟樉绀哄叾妯℃�侀樆灏兼瘮锛?/p>
鏈汉鍒濆鍛戒护娴侊紝璋㈣阿锛?/p>
par
鏄殢渚夸竴涓弬鏁板悕锛屽叾浠栫殑榛樿锛岋紝锛屽彧鏈夐�楀彿鍗冲彲锛?/p>
鍦ㄥ悗鍦ㄥ弬鏁伴噷鐪?/p>
ANSYS
鍔ㄥ姏瀛﹀垎鏋愪腑鎻愪緵浜嗗悇绉嶇殑闃诲凹褰㈠紡锛岃繖浜涢樆灏煎湪鍒嗘瀽涓槸濡備綍璁＄畻锛屽苟瀵瑰垎鏋愭湁浠�涔?/p>
褰卞搷鍛紵鏈枃灏嗗氨姝ゅ仛涓�浜涜鏄庝綍浠嬬粛
.
涓�锛?/p>
棣栧厛瑕佹竻妤氾紝鍦ㄥ畬鍏ㄦ柟娉曞拰妯℃�佸彔鍔犳硶涓畾涔夌殑闃诲凹鏄笉鍚屻�傚洜涓哄墠鑰呬娇鐢ㄨ妭鐐瑰潗鏍囷紝鑰?/p>
鍚庤�呬娇鐢ㄦ�讳綋鍧愭爣
.
1
锛?/p>
鍦ㄥ畬鍏ㄧ殑妯℃�佸垎鏋愩�佽皭鐩稿簲鍒嗘瀽鍜岀灛鎬佸垎鏋愪腑锛屾尟鍔ㄦ柟绋嬩负锛?/p>
闃诲凹鐭╅樀涓轰笅闈㈢殑鍚勯樆灏煎舰寮忎箣鍜岋細
伪
涓哄父鍊艰川閲忛樆灏硷紙
伪
闃诲凹锛夛紙
ALPHAD
鍛戒护锛?/p>
尾
涓哄父鍊煎垰搴﹂樆灏硷紙
尾
闃诲凹锛夛紙
BETA
鍛戒护锛?/p>
尉
涓哄父鍊奸樆灏兼瘮锛?/p>
f
涓哄綋鍓嶇殑棰戠巼锛?/p>
DMPRAT
鍛戒护锛?/p>
尾j
涓虹
j
绉嶆潗鏂欑殑甯稿�煎垰搴︾煩闃电郴鏁帮紙
MP,DAMP
鍛戒护锛?/p>
[C]
涓哄崟鍏冮樆灏肩煩闃碉紙鏀寔璇ュ舰寮忛樆灏肩殑鍗曞厓锛?/p>
where: [C] = structure damping matrix
伪 = mass matrix multiplier (input on ALPHAD command)
[M] = structure mass matrix
尾 = stiffness matrix multiplier (input on BETAD command)
尾c = va
riable stiffness matrix multiplier (see Equation 15
鈥?/p>
23)
[K] = structure stiffness matrix
Nm = number of materials with DAMP or DMPR input
= stiffness matrix multiplier for material j (input as DAMP on MP command)
= constant (frequency-independent) stiffness matrix coefficient for material j
(input as
DMPR on MP command)
惟 = circular excitation frequency
Kj = portion of structure stiffness matrix based on material j
Ne = number of elements with specified damping
Ck = element damping matrix
C尉 =
frequency-dependent damping matrix (see Equation 15
鈥?/p>
21)
2
锛?/p>
瀵规ā鎬佸彔鍔犳柟娉曡繘琛岀殑璋愮浉搴斿垎鏋愩�佺灛鎬佸垎鏋愪綍璋卞垎鏋愶紝鍔ㄥ姏瀛︽眰瑙ｆ柟绋嬩负锛?/p>