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Keywords: actuator
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Proceedings Papers

Proc. ASME. SMASIS2023, ASME 2023 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, V001T04A010, September 11–13, 2023
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2023-110980
... an alternate system that temporarily increases the contact force of connectors during charging with shape memory alloy (SMA) actuators. To ensure industrial applicability, the research is conducted on the example of a CCS Type 2 charging plug. Initially, the correlations between extraction force, contact...
Proceedings Papers

Proc. ASME. SMASIS2023, ASME 2023 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, V001T01A018, September 11–13, 2023
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2023-111572
... Abstract Shape memory alloys (SMA) are a lightweight and compact option for actuators because of their high energy density capacity and allowing the system weight to be reduced by a fraction of conventional actuators. An SMA processed into wire with a narrow hysteresis and great...
Proceedings Papers

Proc. ASME. SMASIS2023, ASME 2023 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, V001T04A020, September 11–13, 2023
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2023-111249
... Abstract This work deals with the development of a descriptive and interactive demonstrator platform with a total of four different shape memory alloy (SMA) actuator systems. The motivation for this demonstrator development is to illustrate this new special decoupled antagonist system...
Proceedings Papers

Proc. ASME. SMASIS2023, ASME 2023 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, V001T04A019, September 11–13, 2023
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2023-111228
... Abstract Due to their high actuation energy density, high stretchability and self-sensing capability, dielectric elastomer actuators (DEAs) and sensors are very attractive for the field of user interaction and communication. The possibility of using the same element to perform actuation...
Proceedings Papers

Proc. ASME. SMASIS2023, ASME 2023 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, V001T06A011, September 11–13, 2023
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2023-111253
... safe collaborative robotic structures for human-machine-interaction. Common actuation techniques applied in continuum robotic systems make use of conventional drive units, which are bulky, heavy and oftentimes stationary. An alternative to these conventional drives is the implementation of shape...
Proceedings Papers

Proc. ASME. SMASIS2023, ASME 2023 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, V001T04A021, September 11–13, 2023
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2023-111255
.... The actuator system operates in a 90° range of motion. The linear force of two antagonistic SMA wire bundles are transmitted into a rotation by an innovative gear rack drive. This transmission is also key to the compact design because SMA force is transmitted into increased stroke and thus rotational motion...
Proceedings Papers

Proc. ASME. SMASIS2022, ASME 2022 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, V001T04A004, September 12–14, 2022
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2022-90573
... Abstract Today, Nickel-Titanium (NiTi)-based shape memory alloy (SMA) wires are already used in a wide range of commercial actuator applications. The combination of their unique properties, such as their high energy density as well as their biocompatibility provides a broad range...
Proceedings Papers

Proc. ASME. SMASIS2022, ASME 2022 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, V001T04A003, September 12–14, 2022
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2022-90552
... Abstract For repeated actuation in shape memory alloy (SMA) actuators, a restoring force is needed to return to the initial starting position after activation. Therefore, SMA wires are often coupled with mechanical springs, which lengthen said wires again after activation through heating...
Proceedings Papers

Proc. ASME. SMASIS2022, ASME 2022 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, V001T02A007, September 12–14, 2022
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2022-90970
... Kuhlenkötter2, Cemal Esen1 1Applied Laser Technologies, Ruhr University Bochum, Bochum, Germany 2Production Systems, Ruhr University Bochum, Bochum, Germany 3Ingpuls GmbH, Bochum, Germany ABSTRACT Integration of shape memory alloys (SMA) into actuator sys- tems is still challenging, since mechanically...
Proceedings Papers

Proc. ASME. SMASIS2022, ASME 2022 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, V001T04A012, September 12–14, 2022
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2022-91015
... Abstract The concept of a new piezoelectric actuator design is the focus of an ongoing smart structures research at DLR. It envisages actuator geometries, that have their template in nature and are aimed at optimally transfering their mechanical power to the structure in which...
Proceedings Papers

Proc. ASME. SMASIS2022, ASME 2022 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, V001T04A011, September 12–14, 2022
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2022-91002
... effectiveness depends on the needle’s ability to travel on a curved path, avoid obstacles, and maintain high targeting accuracy. Conventional needles are passive and have limited steerability and trajectory correction capability. This has motivated researchers to develop actuation mechanisms to create active...
Proceedings Papers

Proc. ASME. SMASIS2020, ASME 2020 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, V001T02A001, September 15, 2020
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2020-2214
... Abstract This paper presents a novel shape memory alloy (SMA) valve actuator concept for active venting in injection molding applications. The developed system can be used to expel air which is trapped during the injection molding process. If such air bubbles are not properly removed from...
Proceedings Papers

Proc. ASME. SMASIS2020, ASME 2020 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, V001T03A016, September 15, 2020
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2020-2427
... Abstract Following significant effort over the past several years by AFRL and NASA, the X-56A flight vehicle has proven to be a useful platform for exploring controllers and distributed actuation on a flexible, swept flying-wing. The program sought to advance the state of the art...
Proceedings Papers

Proc. ASME. SMASIS2020, ASME 2020 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, V001T04A015, September 15, 2020
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2020-2260
... of an intelligent redundant spacecraft actuator were assembled. Evaluating the intrinsic effect of SMA-wires, it was possible to detect signs of fatigue in the material and realize preventive maintenance. Beside a description of the manufacturing steps of both generations, the test results are presented in detail...
Proceedings Papers

Proc. ASME. SMASIS2019, ASME 2019 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, V001T02A002, September 9–11, 2019
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2019-5503
... Abstract The possibilities of a technical application of the shape memory effect are comprehensive and widespread. Besides the usage of arbitrary geometries, e.g. in the medical sector, especially wires are of great interest for unlocking mechanisms or other kinds of actuators. One...
Proceedings Papers

Proc. ASME. SMASIS2019, ASME 2019 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, V001T01A009, September 9–11, 2019
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2019-5685
... actuation and results using continuous CNTs of a CNT-array. For the first test series specimens are cut off a paper manufactured of single-walled, μ-long CNTs working in series. The second test series uses specimens which are prepared of free standing multi-walled CNTs. Their CNT lengths reach macroscopic...
Proceedings Papers

Proc. ASME. SMASIS2019, ASME 2019 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, V001T03A010, September 9–11, 2019
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2019-5627
... in composite material is discussed and the simulations results coming from finite element analyses in frequency and time domains are presented. de-icing composite piezoelectric leading edge impedance actuator ULTRASONIC DE-ICING SYSTEM FOR LEADING EDGE IN COMPOSITE MATERIAL Leandro Maio1...
Proceedings Papers

Proc. ASME. SMASIS2008, Smart Materials, Adaptive Structures and Intelligent Systems, Volume 1, 19-29, October 28–30, 2008
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2008-373
... 24 08 2009 In order to get an understanding of the general characteristics of Carbon Nanotube (CNT) based actuators, the system response of the actuator was analyzed. Special techniques were developed in order to generate a reproducible characteristic measure for the material: the R...