-
promotion of empl
oyment, form a
rea
sonable a
nd
orderly
pattern of
i
ncome
distri
buti
on,
bui
ld a more fair
a
nd sustai
nable
social se
curity
systems, medi
cal and health
system reform. T
he
pl
enar
y,
innovati
on of soci
al
governance, must focus on the
mainte
nance
of
fundame
ntal interest
s of the
overwhelming majority of the
pe
ople, maximize
fact
ors, e
nha
nce
social development,
impr
oving soci
al governance,
the i
nterests
of national
se
curit
y, e
nsure
t
hat the
people live
a
nd w
ork, soci
al
stabil
ity and
orde
r.
o improve
social gover
nance,
stimulati
ng social
organizati
on,
i
nnovative and effective system of
preventing
and resolvi
ng
social
conflicts, impr
oving
t
he publi
c
se
curity system,
set up the
National Security Council
,
national security systems and
nati
onal
se
curity
strategy to e
nsur
e national
security.
Plenary
sessi
on, the
construction of ecologi
cal
civ
ilization, you must
esta
bli
sh systems
of ecol
ogical system, using
the system to
protect t
he
ecologi
cal
e
nvironme
nt.
o
improve natural
resour
ces
asset property right system a
nd use
control, red li
ne of delimitation of
e
col
ogical
protecti
on,
re
sources
paid
use system a
nd
e
col
ogical
compensati
on
sy
stem in ecologi
cal
envir
onme
nt
prote
ction management sy
stem
reform. Plenary
sessi
on,
ce
ntering on building a
liste
ning party comma
nd, can
wi
n and havi
ng a fine style
of the pe
ople'
s army, a
strong army under the
new
sit
uation of the
party
Goal
s, restricti
ng the
development of
nati
ona
l defense and army
buil
ding i
s
solve
d outstanding
contra
dicti
ons
a
nd
problems,
i
nnovati
on a
nd
development of military
the
ory, enhance milit
ary
strategic guida
nce, improve
t
he military st
rategy in the
new
period, building a
modern military force system with
Chi
nese
chara
cteristics.
o dee
pen t
he
adjustment of
personnel system reform
in the army, military
poli
cy
and system reform, prom
ote the
development of military and civi
lian
integrat
ion de
pth.
Plenary session
stresse
d that
compre
hensive reform must be to
strengthen a
nd
impr
ove the
party's
leader
shi
p, give full play
to the core r
ole of the
party commands t
he overall
sit
uation and coordi
nating
all parties, impr
oving the
party's leadi
ng water ...
Margin.
Challe
nged t
he
leadershi
p of the Communi
st
Party of Chi
na, Marxi
sm-
Leni
nism and Mao Ze
dong
thought by
Deng
Xiao
-pi
ng's
fla
g, replace
d by
thre
e representatives and the
harmonic societ
y.
The former Communist Party spirit and
social cohesi
on
poi
nt of almost all
politica
l makeover.
Chara
cteristics
of socialism publi
c
ow
nership is
shifting to
private ow
nership,
planned reg
ulation and
market regulati
on, t
he
pr
oletari
an regime
controlle
d by the elite. Of
univ
ersal equality, fairness
a
nd
basi
c
principl
es of
distri
buti
on
sy
stem is socialist societ
y,
however after economic monopolize
d by
powerful, ve
sted interest
s
grow
employers
do
not have t
he same status,
har
dly se
ems fair
socia
l
distri
buti
on.
State key protection
of
capital i
nterests rather
tha
n the i
nterests of
citizens, had
bee
n hits the
bott
om of the prol
etariat
本资料由理硕教育整理，理硕教育是全国唯一专注于北理工考研辅导的学
校，相对于其它机构理硕教育有得天独厚的优势。丰富的理工内部资料资源与
人力资
源确保每个学员都受益匪浅，
确保理硕教育的学员初试通过率
8
9%
以上，
复试通过率接近
100%<
/p>
，
理硕教育现开设初试专业课
VIP
一对一，
初试专业课网
络小班，假期集训营
，复试
VIP
一对一辅导，复试网络小班，考前专业课网络
小班，满足学员不同的需求。因为专一所以专业，理硕教育助您圆北理之梦。
详情请查阅理硕教育官网
848
理论力学
（
1
）考试要求
①了解：
点的运动描述，刚体的平移、定轴转动和平面运动的描述，约束和自由
度的概
念，
力系的两个特征量及力系简化的四种最简形式，
二力构件的
特点，
静
摩擦力应满足的物理条件，刚体的质心和规则刚体
(
均质细长直杆、圆盘、圆环
等
)
对中心惯性主轴的转动惯量，动力学三个基本定理及其守恒定律，达朗贝
尔
原理与动量原理的关系，
利用虚位移原理求解平衡问题的特点
，
利用动力学普遍
方程求解动力学问题的优势。
②理解：
用弧坐标表示点的速度、
< br>切向加速度和法向加速度，
平面运动刚体的角
速度和角加
速度，
平面运动刚体的速度瞬心，
平面运动刚体的加速度瞬心，
平面
运动刚体上点的曲率中心，绝对运动、相对运动和牵连运动
(
尤其是动点的相对
速度和相对加速度
，动点的牵连速度和牵连加速度，动点的科氏加速度
)
，常见<
/p>
约束的约束力特点，
纯滚动圆盘的运动描述和所受摩擦力特性，<
/p>
物体平衡与力系
平衡的差别，刚体转动惯量的平行轴定理，刚体的
平移、定轴转动、平面运动的
动能、
动量、
对某点的动量矩及达朗贝尔惯性力系的简化结果的计算，
动静法的
< br>含义，虚位移概念和虚位移原理，动力学普遍方程的本质。
③掌握：
用速度瞬心法、
速度投影定理，
< br>两点速度关系的几何法或投影法对平面
运动刚体系统进行速度分析，
用两点加速度关系的投影法或特殊情况下加速度瞬
心法对平面运动刚体系统进
行加速度分析，
用点的速度合成公式的几何法或投影
法以及加速
度合成公式的投影法对平面运动刚体系统进行运动学分析，
力系的主
矢和对某点的主矩的计算，
最简力系的判定，
物系平衡问题
的求解
（尤其要掌握
通过巧妙选取研究对象和平衡方程对问题进
行快速求解）
，
带摩擦物系平衡问题
的
求解，物系动力学基本特征量
(
动能、动量、对某点的动量矩、
达朗伯惯性力
系的等效力系等
)
的计算
，动能定理的积分或微分形式的应用，动量守恒、质心
运动守恒和质心运动定理的应用，
对定点的动量矩定理、
相对于质心的动量矩定
< br>理及其守恒定律的应用，
用达朗贝尔原理
(
动静法
)
求解物系的动力学问题
（包括
动力学正问题：
已知主动力求运动和约束力，
以及动力学逆问题：
已知运动求未
知主动力和
约束力）
，
用虚位移原理求解物系的平衡问题
< br>（特别是利用虚位移原
理求解作用于平衡的平面机构上主动力之间应满足的关系，
会利用虚位移原理求
解平面结构的某个外部约束力或求解其中某
根二力杆的内力）
，
用动力学普遍方
程
快速求解物系动力学问题中某点加速度或某刚体角加速度。
bvi
ousl
y, face
Chi
na's Socialist
sy
stem, the Communi
st Party
is not the
party.
In that
case,
politi
cal
chaos ha
s bee
n very tight.
Is remodeling
or
reconstr
ucti
on,
i
s a correction or a
stove.
Whet
her to tur
n
right
or left, is ba
ck to
the source
or put forward
new political i
deas.
This is to determine the
r
oad pr
obl
ems in
China, is al
so the key out
of the de
ep water
of the reform of the
e
conomic sy
stem.
After 18, the new Ce
ntral
coll
ective lea
dership
attaches great importance to
politi
cal
orie
ntation.
First, the
cles
ng point,
starti
ng from the Ce
ntral
Governme
nt's
self
-re
straint,
whi
ch
prea
ches
a
nd
pro-image,
br
oug
ht fresh feeling to
t
he communit
y.
Secondly,
before reform and
openi
ng up and reform and
openi
ng two
periods after
non-negative,
untyi
ng the
tangl
e of the soci
ety a long
time on t
his issue. Third, a
ne
w generation of part
y
leaders on various
occasions to
Mao Ze
-Dong a
nd
Ma
o Ze
-Dong's
thoug
ht of evaluati
on has
room for manoe
uvre,
throug
h to the
r
uling i
deol
ogy
of Ma
o Zedong thought, i
s
the
call of the soul t
o the
S
ocialist Revol
ution and
constr
ucti
on.
Em
pty talks jeopardize
national interest
s and try
again, is a
n affirmation of
De
ng Xia
o-ping's reform
i
deas.
These strong
politica
l signal
showing a
new ge
neration
of
poli
tical leader
s is still
kee
ping to t
he Socialist
roa
d.
Four is revisiting
t
he
o Ze-Dong's
hi
storical
cycle
of
ofile
anti
-corrupti
on
a
nd t
he
importa
nce
of the
Constit
ution, reorga
nization
is ba
d style of official
dom,
wa
s to civ
ilize people obey
the la
w, w
hile
impr
oving the col
or change
of the regime of vigila
nce.
Five is to reform into
dee
per waters a
nd stressed
t
hat top
-level
design, this i
s a review on
the reform and openi
ng up in
t
he past, i
s also
look
ing for a way out.
Six
foreign and Russia cl
oser, the
flexibl
e attitude
on the
issue of the
Korea
n
pe
ninsula
,
Sino
-Japane
se
fishi
ng har
dli
ne
China
on the island out of the
nt
ow pr
ofile
sha
dow bega
n to
gradua
lly pla
n
development. Signs show that
t
he new l
eadership
began t
o make a left turn in
politics.
However, as of right now, not
only ide
ologi
cal
confusi
on i
n the
community, the new
lea
dership's
t
hinki
ng is messy.
Ne
w leader
s bot
h
stresse
d the
need
t
o implement t
he
Constituti
on, stresse
d the
need t
o turn off the
power
i
n a cage. Al
so
stre
sses that Mao Zedong
t
hought ca
nnot be lost, 30
years after the reform and openi
ng up
30 years ago
can
not deny
each ot
her.
Bot
h
advocate dem
ocracy a
nd
rele
ase
n does not speak
of
files of
politi
cal constraint
s.
Neit
her de
ny the
history of the
CPC Central
Committee on several issues
...
Comrades: today
brings
t
ogether member
s, mainly in
order to
provi
de
a platform to Exchange a
nd
lear
n from each
other
i
n order t
o facilitate our
work. Just now, we focus
on taxation,
pla
nni
ng and
stabilit
y, safety,
proje
ct
constr
uction, typi
cal topics
such as
private facts
prese
ntation and
interacti
on, and towns currently exist
in the in
-de
pth
a
nalysis
of the problems to
be solved, to ex
plore
new methods t
o solve
t
he pr
oblem. It
can
be sai
d that
summing
up t
he achievement,
no grandstanding
;
analy
sis
-
-
-
-
-
-
-
-
-
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