82
B. M˘ anescu et al.
5 Conclusions
The reaction forces in the mechanism we determined for different values of the control
parameter (position Y E of the point E). The calculation is based on the kinematic
analysis developed in our previous works and on the isolation of the rigid bodies.
In addition, we also calculated the compression ratio and the unitary displacement
volume, which has realistic values in all interval of variation for the parameter Y E .
Our next works will be focused on the study of reactions in function of other
geometrical and mechanical parameters.
References
1. S. Erkaya, ¸
S. Su, I. Uzmay, Dynamic analysis of a slider–crank mechanism with eccentric
connector and planetary gears. Mech. Mach. Theory 42, 393–408 (2007)
2. F. Freudenstein, E.R. Maki, Development of an optimum variable-stroke internal-combustion
engine mechanism from the viewpoint of kinematic structure. J. Mech. Transm. Autom. Des.
105, 259–266 (1983)
3. B. Govinda Rao, Y. Datta Bharadwaz, C. Virajitha, V. Dharma Rao, Effect of injection parameters on the performance and emission characteristics of a variable compression ratio diesel
engine with plastic oil blends—an experimental study. Energy Environ. 29(4), 492–510 (2018)
4. T. Hoeltgebaum, R. Simoni, D. Martins, Reconfigurability of engines: a kinematic approach
to variable compression ratio engines. Mech. Mach. Theory 96, 308–322 (2016)
5. T. Hu, S. Liu, I. Zhou, W. Li, Effects of compression ratio on performance, combustion, and
emission characteristics of an HCCI engine. Proc. Inst. Mech. Eng. Part D J. Automobile Eng.
220, 637–645 (2006)
6. G.G. Lowen, F.R. Tepper, R.S. Berkof, Balancing of linkages–an update. Mech. Mach. Theory
9, 299–323 (1974)
7. G.G. Lowen, F.R. Tepper, R.S. Berkof, The quantitative influence of complete force balancing
on the forces and moments of certain families of four-bar linkages. Mech. Mach. Theory 18(3),
213–220 (1983)
8. Y. Lu, A.P. Roskilly, X. Yu, L. Jiang, L. Chen, Technical feasibility study of scroll-type rotary
gasoline engine: a compact and efficient small-scale Humphrey cycle engine. Appl. Energy
221, 67–74 (2018)
9. B. M˘ anescu, I. Dragomir, N.D. St˘ anescu, The transitory vibrations for a variable compression
ratio mechanism, in AVMS 2017, Acoustics and Vibration of Mechanical Structures - AVMS2017, Proceedings of the 14th AVMS Conference, Timisoara, Romania, 25–26 May 2017, ed.
by N. Heris , anu, V. Marinca (Springer International Publishing AG, Cham, 2017), pp. 375–380
10. B. M˘ anescu, I. Dragomir, N.D. St˘ anescu, N. Pandrea, Study of the influence of geometric
parameters on the displacement of piston and compression ratio for a variable compression
ratio mechanism. Acta Technica Napocensis Ser. Appl. Math. Mech. Eng. 60(IV), 649–658
(2017)
11. B. M˘ anescu, I. Dragomir, N.D. St˘ anescu, N. Pandrea, A. Clenci, D. Popa, Aspects in the
synthesis of a variable compression ratio mechanism, in CAR2017 International Congress
of Automotive and Transport Engineering—Mobility Engineering and Environment. IOP
Conference Series: Materials Science and Engineering, vol. 252 (2017), p. 012075
12. B. M˘ anescu, N.D. St˘ anescu, Dynamic analysis of a mechanism of an engine with variable
compression ratio, in IManEE 2019 (in press)
13. B. M˘ anescu, N.D. St˘ anescu, Kinematic analysis of a variable compression ratio mechanism, in
AMMA2018: International Congress of Automotive and Transport Engineering, Proceedings
B. M˘ anescu et al.
5 Conclusions
The reaction forces in the mechanism we determined for different values of the control
parameter (position Y E of the point E). The calculation is based on the kinematic
analysis developed in our previous works and on the isolation of the rigid bodies.
In addition, we also calculated the compression ratio and the unitary displacement
volume, which has realistic values in all interval of variation for the parameter Y E .
Our next works will be focused on the study of reactions in function of other
geometrical and mechanical parameters.
References
1. S. Erkaya, ¸
S. Su, I. Uzmay, Dynamic analysis of a slider–crank mechanism with eccentric
connector and planetary gears. Mech. Mach. Theory 42, 393–408 (2007)
2. F. Freudenstein, E.R. Maki, Development of an optimum variable-stroke internal-combustion
engine mechanism from the viewpoint of kinematic structure. J. Mech. Transm. Autom. Des.
105, 259–266 (1983)
3. B. Govinda Rao, Y. Datta Bharadwaz, C. Virajitha, V. Dharma Rao, Effect of injection parameters on the performance and emission characteristics of a variable compression ratio diesel
engine with plastic oil blends—an experimental study. Energy Environ. 29(4), 492–510 (2018)
4. T. Hoeltgebaum, R. Simoni, D. Martins, Reconfigurability of engines: a kinematic approach
to variable compression ratio engines. Mech. Mach. Theory 96, 308–322 (2016)
5. T. Hu, S. Liu, I. Zhou, W. Li, Effects of compression ratio on performance, combustion, and
emission characteristics of an HCCI engine. Proc. Inst. Mech. Eng. Part D J. Automobile Eng.
220, 637–645 (2006)
6. G.G. Lowen, F.R. Tepper, R.S. Berkof, Balancing of linkages–an update. Mech. Mach. Theory
9, 299–323 (1974)
7. G.G. Lowen, F.R. Tepper, R.S. Berkof, The quantitative influence of complete force balancing
on the forces and moments of certain families of four-bar linkages. Mech. Mach. Theory 18(3),
213–220 (1983)
8. Y. Lu, A.P. Roskilly, X. Yu, L. Jiang, L. Chen, Technical feasibility study of scroll-type rotary
gasoline engine: a compact and efficient small-scale Humphrey cycle engine. Appl. Energy
221, 67–74 (2018)
9. B. M˘ anescu, I. Dragomir, N.D. St˘ anescu, The transitory vibrations for a variable compression
ratio mechanism, in AVMS 2017, Acoustics and Vibration of Mechanical Structures - AVMS2017, Proceedings of the 14th AVMS Conference, Timisoara, Romania, 25–26 May 2017, ed.
by N. Heris , anu, V. Marinca (Springer International Publishing AG, Cham, 2017), pp. 375–380
10. B. M˘ anescu, I. Dragomir, N.D. St˘ anescu, N. Pandrea, Study of the influence of geometric
parameters on the displacement of piston and compression ratio for a variable compression
ratio mechanism. Acta Technica Napocensis Ser. Appl. Math. Mech. Eng. 60(IV), 649–658
(2017)
11. B. M˘ anescu, I. Dragomir, N.D. St˘ anescu, N. Pandrea, A. Clenci, D. Popa, Aspects in the
synthesis of a variable compression ratio mechanism, in CAR2017 International Congress
of Automotive and Transport Engineering—Mobility Engineering and Environment. IOP
Conference Series: Materials Science and Engineering, vol. 252 (2017), p. 012075
12. B. M˘ anescu, N.D. St˘ anescu, Dynamic analysis of a mechanism of an engine with variable
compression ratio, in IManEE 2019 (in press)
13. B. M˘ anescu, N.D. St˘ anescu, Kinematic analysis of a variable compression ratio mechanism, in
AMMA2018: International Congress of Automotive and Transport Engineering, Proceedings