Rectilinear Motion

1847 ◽  
Vol 2 (39) ◽  
pp. 312-312
Keyword(s):  
Rectilinear Motion

Study of Kynematics and Dynamics in the Traffic of Rembangan Tourism in the Jember Regency as Learning Resources for Physics Learning in the Senior High School

2018 ◽  
Vol 7 (1) ◽  
Author(s):  
Alfido Fauzy Zakaria ◽  
Bambang Supriadi ◽  
Trapsilo Prihandono
Keyword(s):  
High School ◽  
School Teacher ◽  
High School Teacher ◽  
Senior High School ◽  
Circular Motion ◽  
Rectilinear Motion ◽  
Learning Resources ◽  
Physics Learning ◽  
Newton's Law ◽  
Newton’S Law

One branch of physics is mechanics. Based on interviews to Senior High School teacher in Jember, mechanics is difficult to learn. The eksternals factor this chapter is dificult to learn is learning Resources. The learning Resources are often less contextuall with around the phenomenon of students. The contextuall learning Resources in the Jember Regency is study of kynematics and dynamics in the traffic of Rembangan Tourism. From this experiment, we get data can be used as a learning resources chapter uniform rectilinear motion, decelerated uniform rectilinear motion, accelerated uniform rectilinear motion, Newton’s Law, and circular motion.

High-Performance Motion Control With Slosh: A Constrained Sliding Mode Approach

2008 ◽  
Author(s):  
Hanz Richter ◽  
Kedar B. Karnik
Keyword(s):  
High Speed ◽  
High Performance ◽  
Design Methodology ◽  
Closed Loop ◽  
Sliding Mode ◽  
Initial Conditions ◽  
Rectilinear Motion ◽  
Industrial Setting ◽  
Open Container ◽  
Nominal Performance

The problem of controlling the rectilinear motion of an open container without exceeding a prescribed liquid level and other constraints is considered using a recently-developed constrained sliding mode control design methodology based on invariant cylinders. A conventional sliding mode regulator is designed first to address nominal performance in the sliding mode. Then an robustly-invariant cylinder is constructed and used to describe the set of safe initial conditions from which the closed-loop controller can be operated without constraint violation. Simulations of a typical transfer illustrate the usefulness of the method in an industrial setting. Experimental results corresponding to a high-speed transfer validate the theory.

Advancement in fabrication of carbon nanotube tip for atomic force microscope using multi-axis nanomanipulator in scanning electron microscope

2022 ◽  
Author(s):  
Sanjeev Kumar Kanth ◽  
Anjli Sharma ◽  
Byong Chon Park ◽  
Woon Song ◽  
Hyun Rhu ◽  
...  
Keyword(s):  
Electron Beam ◽  
Electron Microscope ◽  
Carbon Nanotube ◽  
Scanning Electron Microscope ◽  
Atomic Force Microscope ◽  
Structural Integrity ◽  
Ion Beam ◽  
Rectilinear Motion ◽  
Atomic Force ◽  
Scanning Electron

Abstract We have constructed a new nanomanipulator (NM) in a field emission scanning electron microscope (FE-SEM) to fabricate carbon nanotube (CNT) tip to precisely adjust the length and attachment angle of CNT onto the mother atomic force microscope (AFM) tip. The new NM is composed of 2 modules, each of which has the degree of freedom of three-dimensional rectilinear motion x, y and z and one-dimensional rotational motion θ. The NM is mounted on the stage of a FE-SEM. With the system of 14 axes in total which includes 5 axes of FE-SEM and 9 axes of nano-actuators, it was possible to see CNT tip from both rear and side view about the mother tip. With the help of new NM, the attachment angle error could be reduced down to 0º as seen from both the side and the rear view, as well as, the length of the CNT could be adjusted with the precision using electron beam induced etching. For the proper attachment of CNT on the mother tip surface, the side of the mother tip was milled with focused ion beam. In addition, electron beam induced deposition was used to strengthen the adhesion between CNT and the mother tip. In order to check the structural integrity of fabricated CNT, transmission electron microscope image was taken which showed the fine cutting of CNT and the clean surface as well. Finally, the performance of the fabricated CNT tip was demonstrated by imaging 1-D grating and DNA samples with atomic force microscope in tapping mode.

Effect of an internal nonlinear rotational dissipative element on vortex shedding and vortex-induced vibration of a sprung circular cylinder

2017 ◽  
Vol 828 ◽  
pp. 196-235 ◽  
Author(s):  
Ravi Kumar R. Tumkur ◽  
Arne J. Pearlstein ◽  
Arif Masud ◽  
Oleg V. Gendelman ◽  
Antoine B. Blanchard ◽  
...  
Keyword(s):  
Circular Cylinder ◽  
Nonlinear Energy Sink ◽  
Stream Velocity ◽  
Rectilinear Motion ◽  
Mean Flow ◽  
Number Range ◽  
Vortex Induced Vibration ◽  
Concomitant Reduction ◽  
Fixed Radius ◽  
Lift And Drag

We computationally investigate coupling of a nonlinear rotational dissipative element to a sprung circular cylinder allowed to undergo transverse vortex-induced vibration (VIV) in an incompressible flow. The dissipative element is a ‘nonlinear energy sink’ (NES), consisting of a mass rotating at fixed radius about the cylinder axis and a linear viscous damper that dissipates energy from the motion of the rotating mass. We consider the Reynolds number range $20\leqslant Re\leqslant 120$, with $Re$ based on cylinder diameter and free-stream velocity, and the cylinder restricted to rectilinear motion transverse to the mean flow. Interaction of this NES with the flow is mediated by the cylinder, whose rectilinear motion is mechanically linked to rotational motion of the NES mass through nonlinear inertial coupling. The rotational NES provides significant ‘passive’ suppression of VIV. Beyond suppression however, the rotational NES gives rise to a range of qualitatively new behaviours not found in transverse VIV of a sprung cylinder without an NES, or one with a ‘rectilinear NES’, considered previously. Specifically, the NES can either stabilize or destabilize the steady, symmetric, motionless-cylinder solution and can induce conditions under which suppression of VIV (and concomitant reduction in lift and drag) is accompanied by a greatly elongated region of attached vorticity in the wake, as well as conditions in which the cylinder motion and flow are temporally chaotic at relatively low $Re$.

scholarly journals 2. On the Law of Inertia; the Principle of Chronometry; and the Principle of Absolute Clinural Rest, and of Absolute Rotation

1884 ◽  
Vol 12 ◽  
pp. 568-578 ◽  
Author(s):  
James Thomson
Keyword(s):  
Rectilinear Motion ◽  
Straight Line ◽  
The Law ◽  
The Universe

There is no distinction known to men among states of existence of a body which can give reason for any one state being regarded as a state of absolute rest in space, and any other being regarded as a state of uniform rectilinear motion. Men have no means of knowing, nor even of imagining, any one length rather than any other, as being the distance between the place occupied by the centre of a ball at present, and the place that was occupied by that centre at any past instant; nor of knowing or imagining any one direction, rather than any other, as being the direction of the straight line from the former place to the new place, if the ball is supposed to have been moving in space. The point of space that was occupied by the centre of the ball at any specifiod past moment is utterly lost to us as soon as that moment is past, or as soon as the centre has moved out of that point, having left no trace recognisable by us of its past place in the universe of space.

DYNAMICS OF RECTILINEAR MOTION

Dynamics ◽  
2010 ◽  
pp. 17-54
Author(s):  
Horace Lamb
Keyword(s):  
Rectilinear Motion

RECTILINEAR MOTION. KINETICS

Dynamics ◽  
2010 ◽  
pp. 24-51
Author(s):  
Arthur Stanley Ramsey
Keyword(s):  
Rectilinear Motion

scholarly journals Pengaruh Penerapan Model Pembelajaran Numbered Head Together (NHT) Terhadap Hasil Belajar Siswa

2018 ◽  
Vol 6 (3) ◽  
pp. 354
Author(s):  
Eka Trisianawati ◽  
Tomo Djudin ◽  
Yayuk Dwi Stianingsih
Keyword(s):  
Experimental Design ◽  
Student Learning ◽  
Learning Outcomes ◽  
Effect Size ◽  
Student Learning Outcomes ◽  
Learning Model ◽  
T Test ◽  
Average Score ◽  
Rectilinear Motion ◽  
Before And After

Penelitian ini bertujuan untuk menganalisis: 1) hasil belajar siswa sebelum dan setelah diterapkan model pembelajaran NHT, 2) perbedaan hasil belajar siswa sebelum dan setelah diterapkan model pembelajaran NHT, dan 3) besar efektivitas model pembelajaran NHT terhadap hasil belajar siswa dikelas X SMAN 1 Sungai Raya. Metode penelitian ialah metode eksperimen (Pre-Experimental Design) dengan One-Group Pretest-Posttest Design. Populasi penelitian adalah seluruh siswa kelas X IPA SMAN 1 Sungai Raya yang terdiri dari 5 kelas. Sampel penelitian ini ialah kelas X IPA5 sebagai kelas eksperimen, dengan menggunakan teknik purporsive sampling.  Instrumen untuk mengukur hasil belajar siswa menggunakan tes essay. Data dianalisis dengan menggunakan uji rata-rata, uji pair sample t-test, dan effect size.  Hasil penelitian menunjukkan bahwa: 1) terdapat peningkatan skor rata-rata hasil belajar siswa dari 45,0 menjadi 77,8, 2) Dari hasil analisis data menggunakan uji pair sample t-test dapat disimpulkan bahwa terdapat perbedaan yang signifikan hasil belajar siswa sebelum dan setelah diterapkan model pembelajaran NHT, dan 3) Nilai Effect Size sebesar 2,2 yang termasuk dalam kategori tinggi. Disimpulkan bahwa penerapan model pembelajaran NHT pada materi gerak lurus berubah beraturan berpengaruh terhadap hasil belajar siswa kelas X SMA Negeri 1 Sungai Raya. This study aims to analyze: 1) student learning outcomes before and after applying the NHT learning model, 2) differences in student learning outcomes before and after applying the NHT learning model, and 3) the effectiveness of NHT learning models on student learning outcomes in class X SMAN 1 Sungai Raya. The research method is the experimental method (Pre-Experimental Design) with One-Group Pretest-Posttest Design. The study population was all students of class X Science at Sungai Raya 1 State High School consisting of 5 classes. The sample of this study is class X IPA5 as an experimental class, using purposive sampling technique. Instrument to measure student learning outcomes using an essay test. Data were analyzed using an average test, pair sample t-test, and effect size. The results show that: 1) there is an increase in the average score of student learning outcomes from 45.0 to 77.8, 2) From the results of data analysis using pair sample t-test can be concluded that there are significant differences in student learning outcomes before and after applying the NHT learning model, 3) Effect Size values of 2.2 which is included in the high category. It was concluded that the application of NHT learning  model affecting the learning outcomes of class X students of  SMAN  1 Sungai Raya, of the subject matter rectilinear motion with constant acceleration.

scholarly journals Enhanced Central System of the Traversing Rod for High-Performance Rotor Spinning Machines

2017 ◽  
Vol 17 (1) ◽  
pp. 27-34 ◽  
Author(s):  
Jan Valtera ◽  
Petr Žabka ◽  
Jaroslav Beran
Keyword(s):  
Mathematical Model ◽  
High Performance ◽  
Mechanical Energy ◽  
Optimal Number ◽  
Dynamic Force ◽  
Rectilinear Motion ◽  
Central System ◽  
Rotor Spinning ◽  
New System

Abstract The paper deals with the improvement of central traversing system on rotor spinning machines, where rectilinear motion with variable stroke is used. A new system of traversing rod with implemented set of magnetic-mechanical energy accumulators is described. Mathematical model of this system is analysed in the MSC. Software Adams/View and verified by an experimental measurement on a real-length testing rig. Analysis results prove the enhancement of devised traversing system, where the overall dynamic force is reduced considerably. At the same time, the precision of the traversing movement over the machine length is increased. This enables to increase machine operating speed while satisfying both the maximal tensile strength of the traversing rod and also output bobbin size standards. The usage of the developed mathematical model for determination of the optimal number and distribution of accumulators over the traversing rod of optional parameters is proved. The potential of the devised system for high-performance rotor spinning machines with longer traversing rod is also discussed.

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