The dynamic characteristics and optimization of a cutting mechanism about aluminum electrolytic capacitor casing machine were investigated with a lumped mass-spring damper model in this paper. In the lumped mass-spring damper model, compliance of the links and effects of mechanism position on deformable transfer relationship are taken into account. Besides, torsional and bending vibrations of camshaft are also considered. Cam profile is an important input excitation of the cutting mechanism and has important influence on the dynamic performance. Therefore, optimization of cam profile was also studied based on the dynamic model and B-spline. Acceleration fluctuations were significantly reduced after the optimization.
DaiCXiaBZLiuYR. Structure and development trend of the typical aluminum electrolytic capacitor casing machine. Appl Mech Mater2013; 365–366: 360–364.
2.
YilmazYKocabasH. The vibration of disc cam mechanism. Mech Mach Theory1995; 30: 695–703.
3.
HamidzadehHRDehghaniM. Dynamic stability of flexible cam follower systems. Proc IMechE, Part K: J Multi-body Dynamics1999; 213: 45–52.
4.
CveticaninL. Stability of motion of the cam–follower system. Mech Mach Theory2007; 42: 1238–1250.
5.
GattiGMundoD. On the direct control of follower vibrations in cam–follower mechanisms. Mech Mach Theory2010; 45: 23–35.
6.
LassaadWMohamedTYassineD. Nonlinear dynamic behaviour of a cam mechanism with oscillating roller follower in presence of profile error. Front Mech Eng2013; 8: 127–136.
7.
ChangZZhangCYangY. A study on dynamics of roller gear cam system considering clearances. Mech Mach Theory2001; 36: 143–152.
8.
GuoJZhangWZouD. Investigation of dynamic characteristics of a valve train system. Mech Mach Theory2011; 46: 1950–1969.
9.
GuoJZhangWZhangX. Dynamic and exciting analysis with modal characteristics for valve train using a flexible model. Mech Mach Theory2014; 78: 158–176.
10.
TeodorescuMKushwahaMRahnejatH. Elastodynamic transient analysis of a four-cylinder valvetrain system with camshaft flexibility. Proc IMechE, Part K: J Multi-body Dynamics2005; 219: 13–25.
11.
TeodorescuMKushwahaMRahnejatH. Multi-physics analysis of valve train systems: From system level to microscale interactions. Proc IMechE, Part K: J Multi-body Dynamics2007; 221: 349–361.
12.
KushwahaMRahnejatHJinZM. Valve-train dynamics: A simplified tribo-elasto-multi-body analysis. Proc IMechE, Part K: J Multi-body Dynamics2000; 214: 95–110.
13.
Koster MP. Vibrations of cam mechanisms and their consequences on the design. PhD Thesis, Technische Universiteit Eindhoven, The Netherlands, 1973.
14.
NortonRL. Cam design and manufacturing handbook, New York: Industrial Press, 2002.
15.
QiuHLinCJLiZY. A universal optimal approach to cam curve design and its applications. Mech Mach Theory2005; 40: 669–692.
16.
MandalMNaskarTK. Introduction of control points in splines for synthesis of optimized cam motion program. Mech Mach Theory2009; 44: 255–271.
17.
AcharyyaSNaskarTK. Fractional polynomial mod traps for optimization of jerk and Hertzian contact stress in cam surface. Comput Struct2008; 86: 322–329.
18.
JiangJKIwaiYRSuH. Minimizing and restricting vibrations in high-speed cam-follower systems over a range of speeds. J Appl Mech2007; 74: 1157–1164.
19.
JiangJKIwaiYR. Improving the b-spline method of dynamically-compensated cam design by minimizing or restricting vibrations in high-speed cam-follower systems. ASME J Mech Des2009; 131: 041003–041010.
20.
BravoRHFlockerFW. Optimizing cam profiles using the particle swarm technique. ASME J Mech Des2011; 133: 243–272.
