第
11
卷第
6
期
陕西师范大学学报(自然科学版
Vo
l.
41
NO.6
2013
年
11
月
Journal
of
Shaanxi
Normal
University
(Natural
Science
Edition)
Nov.
, 2013
文章编号
:1672-4291(2013)06-0033-05
纵-扭同频复合超声振动变幅杆设计
唐军1.
2
赵波陈曦
l
(l
河南理工大学机械与动力工程学院，河南焦作
454000;
2
新乡学院机电工程学院，河南新乡
453003)
摘
要:为了在切削与焊接加工过程中获得超声变幅杆的纵-扭复合振动，本文通过对纵-扭转振动
模式下的圆锥过渡阶梯形复合变幅杆进行理论分析，得出其纵-扭振动的共振频率方程以及振这放
大倍数，并对复合变幅杆的三段长度进行控制，实现了纵扭复合同频共振.利用有限元软件
ANSYS
对理论设计的复合变幅杆进行结构动力学仿具分析，结果表明有限元分析与理论计算结
果吻合较好.
关键词:纵扭复合振动;同频共振;复合变幅杆;有限元分析
中图分类号:
TP273;
TB552;
0242.
21
文献标志码
:A
Design of the longitudinal-torsional composite mode u
It
rasonic vibration horn
T
ANG
J
un
1.
2 ,
ZHAO
BOl
,
CHEN
Xi
l
(1
School
of
Mechanical
and
Power
Engineering
,
Henan
Polytechnic
U
niversity
, J
iaozuo
454000
,
Henan
,
Chin
的
2
Department
of
Mechanical
and
Electrical
Engineering
,
Xinxiang
U
niversity
,
Xinxiang
453003
,
Henan
,
China
)
Abstract:
In
order
to
realize
the
longitudinal-torsional
vibration
of
the
ultrasonic
horn
in
cutting
and
welding
process
,
the
dual
incentive
longitudinal-torsional
compound
vibration
characters
of
the
composite
stepped
ul
trasonic
horn
wi
th
a
circular
cone
was
analyzed
,
and
the
resonance
frequency
equations
and
the
vibration
velocity
amplification
coefficient
for
the
design
of
longitudinal-torsional
composite
vibration
the
horn
were
derived.
At
the
same
time
,
the
simultaneous
resonance
of
the
longitudinal
and
torsional
vibrations
in
the
horn
was
reälized
by
reasonable
choosing
three
section
length
of
composite
horn.
The
structural
dynamic
characteristics
of
composite
horns
were
analyzed
by
the
finite
element
software
ANSYS.
It
is
shown
that
the
calculated
resonance
frequencies
of
the
horns
are
in
good
agreement
with
the
simulation
results
,
and
the
longitudinal
vibration
and
torsional
vibration
resonance
frequency
in
the
horn
is
almost
equal
to
each
othe
r.
Key
words:
longitudinal-torsional
compound
vibration;
co-frequency
resonance;
composite
horn;
finite
element
analysis
(FEM)
随着科学技术的飞速发展，硬脆难加工材料，特
别是纳米复相陶瓷和金属基复合材料加工需求日益
增多，功率超声加工技术得到广泛的研究和应
收稿日期:
2013-06-02
用[
1-2J
在功率超声加工中，超声系统的振子一般由
超声换能器、变幅杆和工具组成
[3J
传统超声系统振
子的振动模式通常为单一形式的纵向振动、扭转振
基金项目:国家自然科学基金资助项目
(51175153
，
E050903).
第一作者:唐军，男，讲师，博士研究生，研究方向为精密、超精密加工及其表面技术.
E-mail: Tangjun13915929095@163.com.
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