Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

83results about How to "Increased flexural rigidity" patented technology

Bounce drive actuator and micromotor

Provided is the design and fabrication of the novel bounce drive actuator (BDA) for the development of a new-type micro rotary motor. Although the scratch drive actuator (SDA) micro motor has been developed more than one decade, such device has limited commercial applications due to its shorter lifetime, high power consumption and sudden reverse rotation. In contrast, present invention proposes an innovative BDA micro rotary motor with different actuating mechanism and improved performance. Several significant investigations shown in this research present that the length of the SDA-plate is longer than 75 μm and the plate length of the BDA is less than 75 μm. Under the same driving power and frequency with SDA-based micro motor, the BDA-based micro rotary motor exhibited a consistent “reverse” rotation and a higher speed. BDA has higher flexural rigidity due to its shorter length of plate; thus, the contact area of the bending BDA-plate and the insulator substrate will substantially be reduced even under the same applied voltage as the priming value of SDA-plate. Furthermore, a novel rib and flange structure design for the improvement of lifetime (>100 hrs) and rotational speed (>30 rpm) of BDA micro motor was also demonstrated in this invention.
Owner:SUNONWEALTH ELECTRIC MACHINE IND

Car body structure

The invention provides a railway car with superior riding quality by improving the flexural rigidity of the car body structure while suppressing increase of body structure mass. A reinforcing plate 7 is attached to a roof construction 1 on the side facing an inner side of the car body at a longitudinal center portion of a railway car body structure 10 composed of a roof construction 1, a side construction 2, an underframe 3 and an end construction 4. The range in which the reinforcing plate 7 is adhered in the longitudinal direction of the railway car body structure 10 is between two body bolsters 6, and the range in which the plate 7 is adhered in the horizontal direction of the roof construction 1 is approximately half the length of the roof construction 1 in the horizontal direction. The thickness of the reinforcing plate 7 is increased gradually as the height of the roof construction 1 in the vertical direction increases. According to this arrangement, the deformation of the roof construction 1 at the longitudinal center portion of the railway car body structure 10, which is excessive without the present arrangement, is suppressed, and the flexural rigidity of the railway car body structure 10 is effectively improved. In other words, the bending vibration of the railway car body in the vertical direction can be suppressed, and a superior riding quality is provided.
Owner:HITACHI LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products