31 to 40 of 88 Results
Mar 11, 2013
Badescu, Mircea; Hasenoehrl, Jennifer; Bar-Cohen, Yoseph; Sherrit, Stewart; Bao, Xiaoqi; Chang, Zensheu; Ostlund, Patrick; Aldrich, Jack, 2013, "Percussive augmenter of rotary drills (PARoD)", https://hdl.handle.net/2014/44138, SPIE Smart Structures and NDE Symposium, San Diego, California, March 10-14, 2013, JPL Open Repository
Increasingly, NASA exploration mission objectives include sample acquisition tasks for in-situ analysis or for potential sample return to Earth. To address the requirements for samplers that could be operated at the conditions of the various bodies in the solar system, a piezoele... |
Aug 12, 2012
Bar-Cohen, Yoseph, 2012, "Innovation inspired by nature: capabilities, potentials and challenges", https://hdl.handle.net/2014/42447, SPIE Conference: Photonic Innovations and Solutions for Complex Environments and Systems (PISCES), San Diego, California, August 12, 2012, JPL Open Repository
Through evolution, nature came up with many effective solutions to its challenges and continually improving them. By mimicking, coping and being inspired, humans have been using Nature’s solutions to address their own challenges. In recent years, the implementation of nature’s ca... |
Jun 11, 2012
Bar-Cohen, Yoseph, 2012, "Humanlike robots – synthetically mimicking humans", https://hdl.handle.net/2014/42451, SEM XII International Congress & Exposition on Experimental & Applied Mechanics, Costa Mesa, California, June 11, 2012, JPL Open Repository
Nature inspired many inventions and the field of technology that is based on the mimicking or inspiration of nature is widely known as Biomimetics and it is increasingly leading to many new capabilities. There are numerous examples of biomimetic successes including the copying of... |
Apr 16, 2012
Bar-Cohen, Yoseph; Sherrit, Stewart; Badescu, Mircea; Bao, Xiaoqi, 2012, "Drilling, coring and sampling using piezoelectric actuated mechanisms : From the USDC to a piezo-rotary-hammer drill", https://hdl.handle.net/2014/42472, 2012 Earth and Space Conference : Symposium 2: Exploration and Utilization of Extraterrestrial Bodies, Pasadena, California, April 15-18, 2012, JPL Open Repository
NASA exploration missions are increasingly including sampling tasks but with the growth in engineering experience (particularly, Phoenix Scout and MSL) it is now very much recognized that planetary drilling poses many challenges. The difficulties grow significantly with the hardn... |
Mar 12, 2012
Bar-Cohen, Yoseph; Badescu, Mircea; Sherrit, Stewart; Zacny, Kris; Paulsen, Gale L; Beegle, Luther; Bao, Xiaoqi, 2012, "Deep drilling and sampling via the wireline auto-gopher driven by piezoelectric percussive actuator and EM rotary motor", https://hdl.handle.net/2014/42460, SPIE Smart Structures and Materials/NDE Symposium, San Diego, California, March 10-14, 2012, JPL Open Repository
The ability to penetrate subsurfaces and perform sample acquisition at depths of meters is critical for future NASA in-situ exploration missions to bodies in the solar system, including Mars and Europa. A corer/sampler was developed with the goal of acquiring pristine samples by... |
Mar 12, 2012
Badescu, Mircea; Bar-Cohen, Yoseph; Sherrit, Stewart; Bao, Xiaoqi; Chang, Zensheu; Donnelly, Chris; Aldrich, Jack, 2012, "Percussive Augmenter of Rotary Drills (PARoD)", https://hdl.handle.net/2014/42456, SPIE Smart Structures and Materials/NDE Symposium, San Diego, California, March, JPL Open Repository
Increasingly, NASA exploration mission objectives include sample acquisition tasks for in-situ analysis or for potential sample return to Earth. To address the requirements for samplers that could be operated at the conditions of the various bodies in the solar system, a piezoele... |
Mar 12, 2012
Bao, Xiaoqi; Bar-Cohen, Yoseph; Sherrit, Stewart; Badescu, Mircea; Shrout, Tom, 2012, "High temperature piezoelectric drill", https://hdl.handle.net/2014/42459, SPIE Smart Structures and Materials/NDE Symposium, San Diego, California, March 10-14, 2012, JPL Open Repository
Venus is one of the planets in the solar systems that are considered for potential future exploration missions. It has extreme environment where the average temperature is 460°C and its ambient pressure is about 90 atm. Since the existing actuation technology cannot maintain func... |
Mar 12, 2012
Sherrit, Stewart; Ostlund, Patrick N.; Chang, Zensheu; Bao, Xiaoqi; Bar-Cohen, Yoseph; Widholm, Scott E.; Badescu, Mircea, 2012, "Miniaturization of planar horn motors", https://hdl.handle.net/2014/42425, SPIE Smart Structures/NDE Conference, San Diego, California, March 3, 2012., JPL Open Repository
There is a great need for compact, efficient motors for driving various mechanisms including robots or mobility platforms. A study is currently underway to develop a new type of piezoelectric actuators with significantly more strength, low mass, small footprint, and efficiency. T... |
Mar 11, 2012
Sherrit, Stewart; Domm, Lukas; Bao, Xiaoqi; Bar-Cohen, Yoseph; Chang, Zensheu; Badescu, Mircea, 2012, "Single Piezo-Actuator Rotary-Hammering (SPaRH) drill", https://hdl.handle.net/2014/42457, SPIE Smart Structures and Materials/NDE Symposium, San Diego, California, March 10-14, 2012, JPL Open Repository
The search for present or past life in the Universe is one of the most important objectives of NASA’s exploration missions. Drills for subsurface sampling of rocks, ice and permafrost are an essential tool for astrobiology studies on other planets. Increasingly, it is recognized... |
Dec 5, 2011
Bar-Cohen, Yoseph, 2011, "Biomimetics and the development of humanlike robots as the ultimate challenge", https://hdl.handle.net/2014/42164, 3rd International Conference on Smart Materials and Nanotechnology in Engineering (SMN2011), Shenzhen, China, December 5-8, 2011, JPL Open Repository
Evolution led to effective solutions to nature’s challenges and they were improved over millions of years. Humans have always made efforts to use nature as a model for innovation and problems solving. These efforts became more intensive in recent years where systematic studies of... |
