Simulation video of nitinol actuator and peripheral stent. In 1816, scottish inventor robert stirling produced a closedcycle engine where the working medium, in this case air, remains within the engine while the heat source for combustion is external to the engine. Thesis submitted to the faculty of virginia polytechnic institute and state university for a degree of master of science in mechanical. The shape memory effect and superelasticity youtube. It was believed that these engines could use heat from low temperature sources such as solar heated water, geothermal hot water and rejected heat from conventional engines as a. The purpose of this study was to investigate and compare the mechanical and.
Manufacturing smas for applications across industries the unique behavior of smas makes them an attractive choice of material for manufacturing products and components in a wide range of industries. At low speeds, the electric engine acts alone, meaning the car does not use gas at all. Heat converter engine using a shape memory alloy actuator. Shape memory alloy engine for high efficiency lowtemperature. In simulation tools for engine design engineers from ricardo software discuss the use of simulation software in new powertrain development. The system consists of an active, selfmorphing laminate structure that includes thermally actuated shape memory alloy sma layers and a compliant passive layer. The expresssch schematic design program is just as easy to use as our pcb layout software, both having the same user interface. While tesla, general motors, nissan, bmw and other automakers doggedly push to bring batterypowered vehicles into the. Shape memory alloys are metallic materials that, if deformed when cold, can.
Vt1 engine components available from hts spares who offer a nationwide next day delivery. Each cad and any associated text, image or data is in no way sponsored by or affiliated with any company, organization or realworld item, product, or good it may purport to portray. Engineering design tools for shape memory alloy actuators. Engine design program software free download engine design. Design and simulation of a shape memory alloy buoyancy heat. Aerospace applications of shape memory alloys by gabrielle. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. Known worldwide for accuracy and ease of use, dynosim6 will help you get the most from any engine.
It was developed to allow the user to fully optimize the selection of engine components and engine settings for the ultimate engine build. Smas were also formed into torque tubes that initiated span wise wing twist of a scaled down f18. Provide solutions to over 2000 construction and plant hire companies. Germanys 3dlabs prototyping service has developed a shape memory resin for prodways 3d printers that can be contorted and brought back to shape.
Pdf miniature shape memory alloy heat engine for powering. Designmodeling and thermal analysis on cylinder head of i. The shape memory alloy team at nasa glenn is tackling some of these challenges. The maximum electrical power of the sma heat engine was found to be 8. It also depends on the level and type of information you want. May god help me not to forget your kindness and friendship. If you heat it, it tries to return to the shape it remembers. Our team provides an extensive range of marketing, branding and design services utilizing years of experience and creativity to address the unique objectives of every project. Design and development of a sun tracking mechanism using. The vt1 shape memory alloy heat engine design shape. The design of the cylinder head is key to the performance and efficiency of the internal combustion engine, as the shape of the combustion chamber, inlet passages and ports and to a lesser extent the exhaust determines a major portion of the volumetric efficiency and compression ratio of the engine. Reducing the overall weight of the airplane is always a top priority to increase fuel efficiency. This work presents a novel approach to arranging shape memory alloy sma wires into a functional heat engine. Novel heat engine designs utilizing convective cooling.
Top 10 improvements in engine design howstuffworks. This metal is sounding more and more like somthing from outer space. Microstructural and chemical analyses were made concerning a shape memory alloy based on copper that can be use as matrix material in a composite material for mechanic energy dissipation. Our mission at engine 8 is to build multichannel brand experiences fueled by creativity. Hybrid engines top 10 improvements in engine design. The electrical power density of the engine was calculated to be 36 wkg of the active mass shape memory alloy wire. An optimized shape memory alloy engine generated 36.
The top 6 technologies for improving aircraft fuel. Bill demonstrates the temperaturedependent shape memory of nitinol metal. This alloy was named nitinol nickeltitanium naval ordnance laboratory 4. After a sample of sma has been deformed from its original crystallographic configuration, it regains its original geometry by itself during heating oneway effect or, at higher ambient temperatures, simply during unloading pseudoelasticity or superelasticity. Only with the intentional addition of heat can the sma exhibit actuation. Alfred johnson holds a patent on this kind of motor. The heat treatment methods used to set shapes in both shape memory and superelastic forms of nitinol are similar. In essence, nitinol is an actuator, sensor, and heater all in one material. The efficiency and power of the martensite rotor heat.
Latheman666 recently posted a video see below of a nitinol engine that uses a temperature differential to generate motion. Prototyping and design the vt1 shape memory alloy heat engine design posted on april 4, 2012 by masato r. On the role of thermoelectric heat transfer in the design of sma. Significant contributions include the design itself, a preliminary analytical model and the. An attempt has been made in this work to develop a simple yet efficient sun tracking mechanism sstm using smart shape memory alloy sma. The shape memory alloy material s thermodynamic efficiency was found to be 5. Dynamic control of a vibrating beam is critical to the efforts of mitigation of high cycle fatigue, as it is a leading cause of component or engine failure.
Highdisplacement flexible shape memory alloy actuator for. The metering valve is designed for precise flow control and for accurate flow measurement. Oct 24, 2014 a 19 th century design could be revived in the 21 st century. Windows version of heat engine gives teachers a free download of a highly interactive version of heat engine that teachers can make part of their curriculum and use indefinitely. Citeseerx document details isaac councill, lee giles, pradeep teregowda. The vt1 shape memory alloy heat engine design semantic scholar. On the design of a shape memory alloy spring actuator using. Latheman666 recently posted a video see below of a nitinol engine that uses a temperat. Thermal energy harvesting can provide a costeffective and reliable way to convert. On the design of a shape memory alloy spring actuator. Shape memory alloy sma engine combined heat and power chp system proudly powered by wordpress.
Tech student, department of mechanical engineering, gates institute of technology, gooty 2associate professor in department of mechanical engineering, gates institute of technology, gooty. Design and testing of a shape memory alloy buoyancy engine for. Virginia polytechnic institute and state university. A material that shows a shapememory effect during both heating and cooling is. Thesis submitted to thesis submitted to the faculty of virginia polytechnic institute and state university for a degree of master of. Video of shape memory actuator simulation and stent deployment and articulation shown at smst 2010. After spending a few minutes to learn one, mastering the other takes no time at all. We present engine features and the thermal envelope that resulted in devices achieving between 0. The heat exchanger is planned to provide sufficient heat addition to the fuel to assure that it will be gaseous as it enters the metering valve and will be designed for supercritical pressures to achieve a more predictable heat transfer coefficient. It worked on a small scale, but the torque tube was not strong enough for a full scale wing. The shape memory alloy materials thermodynamic efficiency was found to be 5. The design of extended bandwidth shape memory alloy actuators. It has undergone a process that controls the memory of the material and makes the alloy extremely flexible.
Nasa shape memory alloys aerospace manufacturing and design. Aug 11, 2009 lotus engine software is a simulation for 4 stroke piston engines. Recent advances in composite structures have afford the ability to control the eigenvalue, eigenvectors, and amplitude of vibration through the use of the shape memory effect of shape memory alloys e. Development of a shape memory alloy heat engine through. The heat converter engine of claim 1, wherein each of the shape memory elements has a hollow portion, through which one of a heating medium from the heating means and a cooling medium from the cooling means flows. The vt1 shape memory alloy heat engine design sma shape trainingtutorial modeling heat engine driven by shape memory alloys fatigue of tini sma thermal efficiencies of niticu sma. Development of a fuelpowered shape memory alloy actuator. He explains how twinning in the crystal structure of nitinol produces the memory effect. Note that your malware protection does not know who the publisher of this software is and will display a security warning. And count on motion software for toptier support to help you when you need it. And although nitinol gets warm at the bend point when bent, like any other metallic alloy, it becomes cool when bent back to its original shape. This injector upgrade is only compatible with matching ecu software only plugandplay on models with factory mpi injection on models without factory mpi injection, more components are required ecs tuning does not offer support on custom fueling setups.
I dont know of any generic heat engine, as they ar eso different and require quite specialist simulations. Pdf shape memory alloys smas exhibit temperaturedependent cyclic deformation. Constitutive modeling and structural analysis considering simultaneous. A shapememory alloy is an alloy that can be deformed when cold but returns to its. A regex engine takes inputs and converts them to a different output. Lowering the power consumption of niti shape memory alloy. Significant contributions include the design itself, a preliminary analytical model and the realization of a research prototype. Now with everincreasing demand for greater efficiency, new and older alternative engine designs are. A cfd program is used for head and valve flow, heat transfer issues, and tracts of intake or exhaust, or pieces of the turbo like the blade and housing design. This mechanism is directly activated by the sun dispensing with the requirement of an additional external source to power it.
As you can see, automobile engines have been in constant evolution since the very beginning of motoring. Aerospace applications of shape memory alloys d j hartl. The toyota prius remains the top selling hybrid car in america. Experimentally validated numerical optimization of sma. Engine building software engine builder professional. It was believed that these engines could use heat from low temperature sources such as solar heated water, geothermal hot. Design and control of a proofofconcept active jet engine intake using shape memory alloy actuators. May 02, 2011 the basic design of the fourstroke piston engine has been kicking around for about 150 years. Design and simulation of a shape memory alloy buoyancy heat engine in the low latitude thermocline. They are working designers and engineers who actually use the software they teach professionally, unlike many typical certified courses administered by software manufacturers. Dec 14, 2015 company bets on radical new engine design. Watch this planes wings shapeshift, thanks to nasa tech the agency just performed a test that uses shape memory alloy to fold a drones wings in flight.
The invention of shape memory alloys spurred a period of intense interest in the area of heat engines in the late 70s and early 80s. Design of a massively reconfigurable origami space. Software also models turbochargers, rootsscrew and centrifugal superchargers. Shapememory alloys help nasa create new wing design. The heat converter engine of claim 1, wherein the shape memory element includes a shape memory alloy spring.
For more than a decade, the team has been creating new alloys, testing infrastructure, and modeling tools. The shape memory alloy, referred to as the material of the future, is the first to come to mind in the class of smart materials. Performance mapping of an aluminum nitinol composite. Design parameters test of a shape memory alloy made heat engine jan 2015 sep 2015 the shape memory alloy sma heat engine is a way to convert heat to mechanical work. The vt1 shape memory alloy heat engine design jillcha wakjira abstract the invention of shape memory alloys spurred a period of intense interest in the area of heat engines in the late 70s and early 80s. Engine builder professional is an easy to use engine building software tool for 8, 6, 4, 10 and 12 cylinder engines. If these materials subjected to an appropriate thermomechanical process, they have ability to return to their initial shape. Shape memory alloys are already present in many important areas. This sma heat engine was tailored to function as a miniature energy harvesting. Jan 24, 2015 engine simulation and modeling software guide january 24, 2015 by muscle car diy once you are comfortable with the formulas and concepts presented in this book, you can take advantage of more sophisticated tools that let you actually model and test your engine building ideas on your home computer. In my experience 9yrs engine design at large oem, these sets of design problems are not tackled with one software all at once. Characterization and 3d modeling of ni60ti sma for actuation of a variable geometry jet engine chevron.
The heat treatment parameters chosen to set both the shape and the properties of the part are critical, and usually need to be determined experimentally for each desired parts requirements. Gm awarded doe money to research shape memory alloy heat engines. Watch this planes wings shapeshift, thanks to nasa tech. Designed to fit under any counter for single tap treatment solutions. The aim of the founding directors was to establish a vibrant and exciting practice where innovation and technical excellence combine to deliver complete building solutions. Another engineer, this time from general motors, talks about how simulation tools helped them solve the challenge of fuel flow reversion while designing the new turbocharged cadillac v6 engine. Looking for heat engine simulation software physics forums. Use of a ni60ti shape memory alloy for active jet engine chevron application. The vt1 shape memory alloy heat engine design jillcha wakjira abstract. The small footprint of the vt1 pointofuse, singletap system provides a reliable, economical, and chemicalfree way to safeguard drinking water in any residential application, with flow rates up to 1 gpm 4 lpm benefits. Gm awarded doe money to research shape memory alloy heat. This engine has a bank angle of 65 degree and the firing order is 1751961228410 as shown in the image above. Cmwire ds dental, johnson city, tn, usa is a novel niti alloy introduced in 2010.
Engine simulation and modeling software guide january 24, 2015 by muscle car diy once you are comfortable with the formulas and concepts presented in this book, you can take advantage of more sophisticated tools that let you actually model and test your engine. The vt1 shape memory alloy heat engine design city tech. Heat pumping systems are another potential use for shape memory alloys, taking advantage of their elastocaloric effect, which is a cooling effect that happens when the alloy is cyclically acted. Our program goals are to achieve high power density. Although the design and integration of a shape memory alloy based actuation system requires application and environmentspecific engineering considerations, common modeling tools can significantly reduce the investment required for actuation system development and provide valuable engineering insight. Company bets on radical new engine design usa today. The main component of the actuator, a shape memory alloy sma element, operates as a heat engine and converts the thermal energy of fuel combustion to mechanical energy. Uncategorized shape memory alloy sma engine combined.
Heat engine driven by shape memory alloys prototype and design invented a novel sma powered heat engine, masters thesis 20012002 technical writing and prototyping selffunded and directed academic research, analysis, simulation, mechanical design, handson fabrication, testing and troubleshooting to yield a working device and. Request pdf shape memory alloy engine for high efficiency lowtemperature gradient thermal to electrical conversion more than half of the. These profiles allow the simulation to precisely determine valvemotion, an essential step in obtaining the highest accuracy in engine modeling. A device is designed as a part of this project,which utilizes the deformability of the shape memory alloy when it is cold and its reversion to its original shape when the alloy is heated to above. A first magnetic flux field is produced in the vicinity of a generally cylindrical pulse generating coil arrangement and a plasma is abruptly and radially displaced. Often, they are used as actuators in robotic applications. It was believed that these engines could use heat from low temperature sources such as solar heated water, geothermal hot water and rejected heat from conventional engines as a significant source of power. Shape memory alloys smas have been used for a wide variety of applications in various fields such as robotics. Mechanical and metallurgical properties of various nickel. A shape memory alloy sma, also known as a smart alloy, memory metal, or muscle wire is an alloy that remembers its shape. One goal of the consortium for the advancement of shape memory alloy research and technology is to compile the collective design experiences of our member organizations into a single medium that researchers and engineers may use to make efficient and effective decisions when developing shape memory alloy sma components and systems. Potential design concepts are discussed for further improvements of the sma. Shape memory alloy engineering introduces materials, mechanical, and aerospace engineers to shape memory alloys smas, providing a unique perspective that combines fundamental theory with new approaches to design and modeling of actual smas as compact and inexpensive actuators for use in aerospace and other applications.
Its be possible to build a rudimentary analytical or numerical simulation in excel or matlab. Design engine is the culmination of several successful design and engineering practices based in the midlands. One must take into account the forces, displacements, temperature conditions, and cycle rates required of a particular actuator. Design optimization and uncertainty analysis of sma morphing structures s d oehler, d j hartl, r lopez et al. Development of a shape memory based air conditioning system. Set boost, belt ratios, turbine sizes, ar ratios, even model intercoolers. Shape memory alloys, however, are not for all applications. The incorporation of the high energy density fuel and actuator control hardware and software inside the unit makes for a compact actuator system, requiring only lowpower. Some everyday items are already incorporating smart materials coffee pots, cars, the international space station, eyeglasses, and the number of applications for them is growing steadily. The instructors who teach at design engine are renowned for their industry expertise and professionalism. Sma are being explored as vibration dampers for launch vehicles and commercial jet engines.
Evolution of small scale solar pump using shape memory. Experimentally validated numerical analysis d j hartl, j t mooney, d c lagoudas et al. In this work, we performed material and heat transfer analysis for achieving high frequency, sustainable and efficient operation of our engine. Ictas doctoral scholars program and amrdec for funding through sbir program.
In the medical field, glasses frame material, the material of intravenous stents, jet engines in the aviation area, and bridges in the construction area can be mentioned. The shape memory effect is often exploited when smas are used as actuators 6 15. Today they are more powerful, quieter, more durable, less polluting and more fuelefficient than they have ever been before, thanks to constant advancements in engine design and technology. Shape memory alloys exhibit through them martensitic transformation a high damping capacity that can be used in many applications.
Smart materials include piezoelectric materials, magnetorheostatic materials, electrorheostatic materials, and shape memory alloys. Schiller abstract this work presents a novel approach to arranging shape memory alloy sma wires into a functional heat engine. It guided me almost through the whole project it helped me a lot in the overall shape and dimensions so kinda reduced the time it took me to design and finish the engine. The vt1 shape memory alloy heat engine design 2010 solidworks performing thermal analysis heat engine driven by shape memory alloys. This paper describes a flexible shape memory alloy sma actuator designed to increase the limited displacement that these alloys can induce. The vt1 shape memory alloy heat engine design vtechworks. Citeseerx the vt1 shape memory alloy heat engine design. Shape memory polymers, and other variations of shape memory materials, have been developed and even released for different commercial uses. Latheman666 recently posted a video see below of a nitinol engine that uses a.