Bend radius

About: Bend radius is a research topic. Over the lifetime, 3303 publications have been published within this topic receiving 35415 citations. The topic is also known as: minimum bend radius.

Prestress plastic corrugated pipe

Abstract: The utility model relates to a prestress plastic corrugated pipe, which includes a pipe body (1) with corrugation. The corrugated pipe is characterized in that the pipe body (1) is provide with monocyclic ring corrugation with isometry inner concave and outer convex; a small monocyclic ring with 1-2mm height of a corrugated arris (3) is arranged just between two isometry big ring corrugation; wherein, the big ring pipe corrugated arris (2) is 4-5mm in height, 3-5mm in width, and 2-3mm in thickness, and the minimum bending radius of the pipe is 0.9-1.5m. Because the corrugated arris is arranged in monocyclic ring method, the plastic corrugated pipe has strong rigidity and high bearing strength, can not be tore by a tamper, and has no leakage under the load and within the bending range. The plastic corrugated pipe is mainly applied to the municipal department, water conservancy department, post and telecommunication department and the like, and can be used as the drainage pipeline, and can be used for installation of concrete projects such as highway overpasses, viaducts, railroad bridges and the like.

Speed regulation method for a vehicle

Abstract: The method for the speed regulation is carried out with a first desired speed value manually specified and a second desired value, depending at least one the bend course or the bend radius. The desired transverse acceleration value (a soll) is computed for determining the second speed desired value (F2 soll), depending on a maximum permitted transverse acceleration value (a max), which results from the road condition of the road stretch being negotiated e.g. the road adhesion contribution and the surface ripple, and the bend course or the bend radii (KR) of the stretch.

Phase-regulated cable for spaceflight, and method for preparing same

Abstract: The invention discloses a phase-regulated cable for spaceflights and a method for preparing the same. The phase-regulated cable for spaceflights is characterized by comprising an inner conductor, an insulation layer, outer conductors and sheaths which are all coaxially and are sequentially arranged from inside to outside. The method for preparing the phase-regulated cable for spaceflights comprises the following steps of forming the inner conductor by drawing or twisting a single or multiple silver-plated copper wires; forming the insulation layer by using a lapping production line to manufacture a polytetrafluoroethylene micro-porous thin film and then pressing the thin film; forming an outer conductor I by using the lapping production line to lap a silver-plated copper flat belt and then rolling the flat belt with round rollers; forming an outer conductor II by lapping an aluminum foil and a polyimide composite belt; forming an outer conductor II by braiding copper-plated round copper wires; and forming a sheath I and a sheath II by using the lapping production line to lap a polyimide duplex polytetrafluoroethylene thin film and a polytetrafluoroethylene sealing tape; and thus obtaining a finished product of a phase-regulated cable. The phase-regulated cable for spaceflights small in laying bending radius, phase-regulated, low in loss and low in standing wave, and has strong resistance to high and low temperatures and radiation, improved anti-interference performance and good flame resistance.

Protective cable frame for use with low voltage bracket or electrical box

Abstract: A protective cable frame for providing a portal for routing low voltage cables through a wall. The protective cable frame includes a substantially rectangular frame portion with an inner periphery having a rounded surface, two ends, and arms extending from each end. The arms include an outer bore and an inner slot therein. The inner slots enable insertion of fasteners for direct mounting of the cable frame to a low voltage bracket or an electrical box and permit squaring of the cable frame with respect to the wall. The outer bores in the arms of the protective cable frame enable receipt of fasteners for mounting a cover plate thereto. The protective cable frame is capable of receiving low voltage cables for routing them through a wall to an adjacent room. The rounded surface on the inner periphery provides a gentle bend radius to cables routed there through.