1
涓�銆佸～绌洪
1
銆佺嫮涔夌浉瀵硅鐨勪袱鏉″熀鏈師鐞嗘槸
____________
鍘熺悊鍜岀浉瀵规�у師鐞嗭紟
2
銆佸湪娲涗鸡鍏瑰彉鎹㈠拰浼藉埄鐣ュ彉鎹腑锛屽摢涓�绉嶅彉鎹㈠鑷翠簡鏃堕棿寤剁紦鐜拌薄锛?/p>
______________
锛?/p>
3
銆佹煇瑙傚療鑰呯湅鍒颁竴鎶婄背灏烘部鍏堕暱搴︽柟鍚戜綔鍖�閫熺洿绾胯繍鍔紝姝ゆ椂绫冲昂鐨勫姩鑳芥槸瀹冮潤姝㈣兘閲忕殑鍥涘垎涔嬩竴锛屽垯绫冲昂鐩稿瑙傚療鑰呯殑
閫熺巼涓?/p>
_________
锛岃瀵熻�呮祴寰楃背灏虹殑闀垮害涓?/p>
_______m
锛?/p>
4
銆佸厜閫熶笉鍙樺師鐞嗘寚鐨勬槸鍏夊湪鎵�鏈変粙璐ㄤ腑鐨勪紶鎾�熷害鐩哥瓑锛岃繖绉嶈娉曟槸鍚︽纭紵绛?/p>
锛屽苟璇存槑鐞?
鐢憋細
锛?/p>
5
銆併�佸凡鐭ユ煇渭瀛愰潤姝㈡椂鐨勫鍛戒负
2.20
脳
10
-8
s
锛岃嫢鐩稿浜幬煎瓙浣滃寑閫熺洿绾胯繍鍔ㄧ殑瑙傚療鑰呮祴寰楀叾瀵垮懡涓?/p>
2.75
脳
10
-8
s
锛屽垯瑙傚療
鑰呯浉瀵逛簬渭瀛愮殑杩愬姩閫熷害澶у皬涓?/p>
锛?/p>
6
銆併�佹牴鎹嫮涔夌浉瀵硅璐ㄨ兘鍏崇郴锛屼竴瀵规璐熺數瀛愮浉鎾炴巩鐏悗閲婃斁鍑虹殑鎬昏兘閲忎负
锛庡凡鐭ユ鐢靛瓙鍜岃礋鐢靛瓙
鐨勮川閲忓潎涓?/p>
9.1
脳
10
-31
kg
锛?/p>
7
銆佷竴鍒楀钩闈㈢畝璋愭尝鐨勬尝鍑芥暟涓?/p>
)
3
蟺
蟺
2
2
蟺
cos(
2
.
0
飥?/p>
飥?/p>
飥?/p>
x
t
y
锛屽紡涓悇鐗╃悊閲忕殑鍗曚綅鍧囦负鍥介檯鍗曚綅鍒讹紟閭ｄ箞杩欏垪娉㈢殑娉㈤�?
涓?/p>
u
=________m/s
锛?/p>
8
銆併�佸钩闈㈢畝璋愭尝鐨勮〃杈惧紡
0.05cos(2
蟺
4
蟺
蟺
)(SI)
y
t
x
飥?/p>
飥?/p>
飥?/p>
锛屽垯
x
锛?/p>
0.25m
澶勭殑
P
鐐圭浉浣嶆瘮
x
锛?/p>
0
澶勭殑
O
鐐圭浉浣嶈惤
鍚?/p>
銆?/p>
9
銆佷袱鐩稿共娉㈡簮
S
1
鍜?/p>
S
2
鍚岀浉浣嶄笖鎸箙鍧囦负
A
锛屽垯
S
1
鍜?/p>
S
2
杩炵嚎涓偣澶勭殑鎸箙涓?/p>
________
锛?/p>
10
銆侀厭鍚ч棬鍙ｇ殑澶у枃鍙彂鍑洪鐜囦负
750 Hz
鐨勫櫔澹帮紝涓�杈嗚杞︿互
50m/s
椹跺悜閰掑惂锛庣┖姘斾腑澹伴�熶负
340 m/s
锛屽垯杞︿笂鐨勮闀垮惉
鍒拌澹伴煶鐨勯鐜囨槸
__________Hz
锛堣嚦灏戜繚鐣欎笁浣嶆湁鏁堟暟瀛楋級锛屾瘮鍠囧彮鍥烘湁棰戠巼鐨勯煶璋冩洿
________
锛堝～鈥滈珮鈥濇垨鈥滀綆鈥濓級锛?/p>
11
銆佹煇涓畝璋愭尟鍔ㄧ殑鎸箙涓?/p>
A
锛屾尟鍔ㄦ�昏兘閲忎负
E
銆傝嫢灏嗗叾鎸箙鍙樹负
2
A
锛屽垯鎸姩鎬昏兘閲忎細鍙樹负
________
锛?/p>
12
銆佽嫢涓�鍒楀叆灏勬尝鐨勬尝鍑芥暟涓?
)
蟺
蟺
2
cos(
5
.
0
x
t
y
飥?/p>
飥?/p>
锛屽湪鍘熺偣澶勫彂鐢熶簡鍙嶅皠锛屽弽灏勭偣涓轰竴鍥哄畾绔紟閭ｄ箞鍙嶅皠娉㈢殑娉㈠嚱鏁?
涓?/p>
y
=_______________________
锛?/p>
13
銆佹浮杞互
20m/s
鐨勯�熷害椹剁宀歌竟锛屾浮杞笂鏈変汉鐢ㄥ皬鎻愮惔婕斿棰戠巼涓?/p>
1300 Hz
鐨勯煶绗︼紝绔欏湪宀镐笂鐨勮瀵熻�呭惉鍒扮殑棰戠巼鏄?
_________Hz (
淇濈暀鍥涗綅鏈夋晥鏁板瓧锛岀┖姘斾腑澹伴�熶负
340 m/s)
锛?/p>
14
銆佽川鐐瑰仛绠�璋愭尟鍔紝鎸姩鏂圭▼
)
SI
)(
2
蟺
3
蟺
cos(
06
.
0
飥?/p>
飥?/p>
t
x
銆傝川鐐瑰湪
t
锛?/p>
2s
鏃剁殑鐩镐綅涓?/p>
銆?/p>
15
銆佷竴绔栫洿鎮寕鐨勮交寮圭哀锛屼笅绔寕涓婃煇涓竴瀹氳川閲忕殑灏忕悆鍚庯紝鍏朵几闀块噺涓?/p>
3.92
脳
10
-3
m
銆傜幇浣胯绯荤粺浣滅畝璋愭尟鍔紝鍏舵尟鍔ㄧ殑
瑙掗鐜?/p>
蠅
锛?/p>
s
-1
锛堥噸鍔涘姞閫熷害
g
锛?/p>
9.8m/s
2
锛夈�?/p>
16
銆佷竴寮圭哀鎸瓙娌?/p>
y
杞村仛绠�璋愭尟鍔紝浣嶇Щ
y
闅忔椂闂?/p>
t
鐨勫嚱鏁板叧绯诲鍙冲浘鎵�绀猴紝鍒欒寮圭哀鎸瓙鎸姩鐨勫懆鏈?/p>
T
锛?/p>
_________ s
锛?
鍙兘杈惧埌鐨勬渶澶ч�熺巼
v
m
锛?/p>
_______cm/s
锛屽垵鐩?/p>
蠁
锛?/p>
_______
銆?/p>
17
銆佷竴骞抽潰绠�璋愭尝娌?/p>
x
杞翠紶鎾紝宸茬煡鍦?/p>
x
1
锛?/p>
2m
澶勮川鍏冪殑鎸姩鏂圭▼涓?