Related Experiment Video
Updated: Jul 19, 2025
10:09
Operation of the Collaborative Composite Manufacturing CCM System
Published on: October 1, 2019
6.7K
Optimal Roving Winding on Toroidal Parts of Composite Frames
Jaroslav Mlýnek1, Seyed Saeid Rahimian Koloor2, Roman Knobloch1
1Department of Mathematics, Faculty of Science, Humanities and Education, Technical University of Liberec, Studentská 2, 461 17 Liberec, Czech Republic.
Polymers
|August 12, 2023
Summary
This study quantifies the challenges in uniformly winding polymer composite frames, particularly toroidal sections. Achieving high-quality composite frames depends significantly on the torus geometry and winding parameters.
Area of Science:
- Materials Science
- Mechanical Engineering
- Robotics
Background:
- Polymer composite frames are vital in aerospace, automotive, and agricultural sectors.
- Industrial robot winding is a key manufacturing process for these frames.
- Winding curved composite frame sections, often toroidal, presents significant manufacturing challenges.
Purpose of the Study:
- To describe and quantify the difficulties in achieving uniform winding of toroidal composite frame parts.
- To investigate the influence of geometrical parameters on winding quality.
- To present a mathematical model for determining roving requirements on toroidal sections.
Main Methods:
- Analysis of the winding process for curved composite frame sections.
- Quantification of winding difficulties based on geometrical parameters.
- Development of a mathematical model for calculating the number of rovings.
Main Results:
- The quality of wound composite frames is highly dependent on the specific geometrical parameters of the torus.
- A detailed mathematical procedure is provided for determining the necessary number of rovings.
- The study illustrates practical industrial problems related to toroidal winding.
Conclusions:
- Uniform winding of toroidal composite frame parts is geometrically challenging.
- The presented mathematical model aids in optimizing the winding process for improved quality.
- Understanding geometrical influences is crucial for efficient composite frame manufacturing.
Related Concept Videos
01:27Toroids
3.0K
A toroid is a closely wound donut-shaped coil constructed using a single conducting wire. In general, it is assumed that a toriod consists of multiple circular loops perpendicular to its axis.
When connected to a supply, the magnetic field generated in the toroid has field lines circular and concentric to its axis. Conventionally, the direction of this magnetic field is expressed using the right-hand rule. If the fingers of the right hand curl in the current direction, the thumb...
When connected to a supply, the magnetic field generated in the toroid has field lines circular and concentric to its axis. Conventionally, the direction of this magnetic field is expressed using the right-hand rule. If the fingers of the right hand curl in the current direction, the thumb...
3.0K
01:19Three-Winding Transformers
263
Three identical single-phase transformers can be configured to form a three-phase transformer connection, which involves high-voltage and low-voltage windings. The high-voltage windings are denoted by capital letters A-B-C, while the low-voltage windings are labeled with lowercase letters a-b-c, representing their respective phases. This notation helps distinguish between the high and low voltage sides of the transformer.
In the per-unit equivalent circuit of a grounded Y-Y three-phase...
In the per-unit equivalent circuit of a grounded Y-Y three-phase...
263
01:13Torque On A Current Loop In A Magnetic Field
4.2K
The most common application of magnetic force on current-carrying wires is in electric motors. These consist of loops of wire, which are placed between the magnets with a magnetic field. When current flows through the loops, the magnetic field applies torque, which causes the shaft to rotate, thus converting electrical energy to mechanical energy.
Consider a rectangular current-carrying loop containing N turns of wire, placed in a uniform magnetic field. The net force on a current-carrying loop...
Consider a rectangular current-carrying loop containing N turns of wire, placed in a uniform magnetic field. The net force on a current-carrying loop...
4.2K
01:16Torsion of Noncircular Members
159
Circular shafts undergoing torsional stress maintain their cross-sectional integrity due to their axisymmetric nature. This symmetry ensures an even distribution of stress, allowing the shaft to withstand torsion without distorting. In contrast, square bars, lacking this axial symmetry, experience significant distortion across their cross-sections when subjected to torsion, with the exception of along their diagonals and at lines connecting midpoints. A detailed examination of a cubic element...
159
01:17Design Example: Calculating Safe Diameter for Wind-Exposed Disc
156
Assessing safety in wind-exposed installations is crucial to preventing potential failures. This example explores the calculation and design adjustments needed to mount a circular disc on a building facade, where wind forces are a primary concern. A 4-meter diameter disc was initially designed as an aesthetic feature facing winds at a velocity of 25 meters per second, with an air density of 1.25 kilograms per cubic meter. Given these conditions, the drag force on the disc was determined using...
156
01:15Torque Free Motion
516
The torque-free motion refers to the movement of a rigid body in space when no external torques are acting upon it. This type of motion can be observed in environments where there are no external forces or frictions, like in outer space. For example, a rotation of Mars in space is a torque-free motion. Mars is an axisymmetric object, meaning it has an axis of symmetry along which it rotates, designated as the z-axis. The rotating frame of reference is defined such that the center of mass of...
516