tabele laboratoare mecanica

7/24/2019 Tabele Laboratoare mecanica

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1. Studiul Balanei de precizie:

Nr.Crt.

m(g)

n(div)

(div/g)

m1!"

(g)#m1!"

($)%ezultate

mc&m

1. 1 0,50 6,25 16,00 16,00 1 0,16

2. 5 1,00 12,50 8,00 1,60 5 0,083. 10 2,50 31,25 3,20 0,32 10 0,032

4. 15 3,00 37,50 2,60 0,17 15 0,026

5. 20 3,25 40,62 2,46 0,12 20 0,0246

6. 25 3,75 46,87 2,13 0,08 25 0,0213

7. 30 4,25 53,12 1,88 0,06 30 0,0188

8. 35 4,50 56,25 1,77 0,05 35 0,0177

9. 40 5,00 62,50 1,60 0,04 40 0,016

10. 45 5,25 65,62 1,52 0,03 45 0,0152

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". 'eriicarea legii depla*rii +i ,egii vitezei cu a-utrul planului nclinat:

Nr.Crt.

(0)

()

t()

t

()at

(m/")aep

(m/")vt

(m/)vep

(m/)#a

($)a

(m/")#v

($)v

(m/)

%ezultateac&aep2avc&vep2v

1. 9 1,02 1,38 1,388 1,093 1,060 1,510 1,460 1,48 1,560*10-2 0,769 1,129*10-2 ac=1,0601,560*10

-2

vc=1,46*1,129*10-2

2. 1,38

3. 1,37

4. 1,40

5. 1,41

6. 23 1,02 0,91 0,928 2,732 2,369 2,535 2,198 2,199 0,052*10-2 ... ...*10-2 ac=2,369 0,052*10

-2

vc=2,198 ...*10-2

7. 0,94

8. 0,93

9. 0,90

10. 0,93

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3. 4eterminarea ceicientului de alunecare prin metda vi5ratiilr:

Nr.Crt.

6(v)

d(m)

t()

t

()7()

89ateriale n cntact cu

recare

1. 7 0,335 11,58 1,158 0,503 lemn". 11,53 1,153 0,5073. 11,55 1,155 0,505

. 11,62 1,162 0,499;. 11,65 1,165 0,496

. 16,18 1,618 0,257

?. 16,21 1,621 0,2461!. 16,38 1,638 0,256

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. Studiul eperimental al cnervarii impulului:

Nr.Crt

@ep(cm)

expX

(cm)

t()

t()

t

()7ep()

71()

#($)

#t($)

1. 20 21,4 22,9 5,00 0,156

". 24 5,123. 18,2 5,08

. 21 5,17;. 23 5,05

. 21,4 5,12

?. 21,2 5,181!. 23,4 5,10

;. Aendulul lui 9ac:

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Nr.Crt.

6ngiul (0)

t()

t

()7D7i()

i(cm)

li(cm) 2

2

iT

Tc

1. 0=0 10,28 10,29 1,029 34,00 34,00 1,000 1,00". 10,293. 10,31

. 1 10,69 10,71 1,071 33,50 34,00 0,922 0,985;. 10,69

. 11,87

?. 11,881!. 3 12,21 12,22 1,222 30,01 34,00 0,708 0,885

11. 12,221". 12,24

13. 4 12,71 12,72 1,272 28,01 34,00 0,654 0,8261. 12,721;. 12,73


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Nr.Crt

l(cm)

t1()

t 1

()71()

t"()

t "

()7"()

gep(m/)

#g($)

g(m/)

1. 32 18,10 18,11 1,811 20,20 2,021

". 18,13 20,21

3. 18,12 20,22. 36 17,69 17,703 1,770 18,71 18,713 1,871;. 17,70 18,71. 18,34 17,84

?. 18,29 17,871!. 44 18,38 18,37 1,837 17,34 17,356 1,735611. 18,37 17,36

1". 18,36 17,37

=. Studiul cilatiilr de triune:

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Nr.Crt

t()

t

()7()

tl

()t

l

()7l

()iep

(Fg/m")it

(Fg/m")Cep

(Nm)Ct

(Nm)#i

($)#c

($)

1. 14,59 14,584 1,458 19,81 19,857 1,985 11,552*

*10

-3 9,738*10-3 214,319*

*10

-3

254,340*

*10

-3

". 14,62 19,913. 14,58 19,87

. 14,60 19,84;. 14,62 19,85

. 14,55 19,90

?. 14,63 19,841!. 14,59 19,86

>. Studiul cilatiilr cuplate

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Nr.Crt

t!()

t !

()7! ep()

7! t()

G(Fg/m")

l!(m)

H(m)

1. 11D"1 11D"3 1D1"3 1D113 D3?" 1!I3 "=D"3 1!I3 3!=D>!! 1!I3

". 11D""

3. 11D"! 1!D>1< 1D!>1< 1D!=;". 1!D>1

3. 1!D>

Nr.

Crt

t1

()

t 1

()

71 ep

()

71 t

()1. 11D1? 11D1> 1D11> 1D113". 11D1>

3. 11D1=

Nr.Crt

t"()

t "

()7" ep()

7" t()

1. 11D1; 11D1< 1D11< 1D!11". 11D1

Nr.Crt

t5()

t 5

()75 ep()

75 t()

n5 t n5 t

1. ""D>= ""D


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?. Studiul cmpunerii micarilr armnice perpendiculare cu a-utrul cilcpului

Nr.Crt.

Jigura,ia-u

n nKy

x

n

nn =

L(Mz)

LK ep & n L(Mz)

LK ter

1. 1 11

13!! 3!! "??

". " 33

2"!! "!1

3. " 2

11;! 1?

. " ;5

21"! 1""

;. 1 33

11!! ?>

>. 1 !! 1>"3

1!. 4eterminarea vitezei unetului in aer prin metda intererentei cu a-utrul tu5ului Ening:

Nr. Crt.L

(Mz)n

dn(cm)

H(cm)

(cm)c

(m/)c

(m/)

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1!!! ! =D?! 31D

" !D;! 33D

;

?

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